diff --git a/.env.example b/.env.example
index 0ffc588..266ec9f 100644
--- a/.env.example
+++ b/.env.example
@@ -20,4 +20,15 @@ CMS_SSO_HEADER=X-SSO-Token
 # Optional shared secret. Leave empty to accept any non-empty forwarded value.
 CMS_SSO_TOKEN=
 # Optional cookie fallback when the proxy sets a cookie instead of a header.
-CMS_SSO_COOKIE=
\ No newline at end of file
+CMS_SSO_COOKIE=
+
+# Go Loose browser login. Leave the credentials empty to keep the proxy identity.
+# Register https://tell.dev/api/auth/callback as the redirect URI of the Go Loose
+# application that owns these credentials.
+GO_LOOSE_TENANT=tell
+GO_LOOSE_AUTH_DOMAIN=auth.dev
+GO_LOOSE_APP_DOMAIN=tell.dev
+GO_LOOSE_CLIENT_ID=
+GO_LOOSE_CLIENT_SECRET=
+# Extra certificate authority for an internally signed identity domain.
+GO_LOOSE_CA_FILE=
\ No newline at end of file
diff --git a/.github/workflows/build-test-push.yml b/.github/workflows/build-test-push.yml
index 2c0b0d9..e2fa248 100644
--- a/.github/workflows/build-test-push.yml
+++ b/.github/workflows/build-test-push.yml
@@ -7,7 +7,7 @@ on:
   workflow_dispatch:
 
 env:
-  IMAGE_NAME: batty1039.startdedicated.net:5000/cms
+  IMAGE_NAME: batty1039.startdedicated.net:5000/go-tell
   FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
 
 jobs:
diff --git a/.github/workflows/deploy-rancher.yml b/.github/workflows/deploy-rancher.yml
index 78c9dce..736a9c7 100644
--- a/.github/workflows/deploy-rancher.yml
+++ b/.github/workflows/deploy-rancher.yml
@@ -26,7 +26,7 @@ permissions:
   contents: read
 
 concurrency:
-  group: cms-${{ github.event_name == 'workflow_dispatch' && inputs.environment || 'production' }}
+  group: go-tell-${{ github.event_name == 'workflow_dispatch' && inputs.environment || 'production' }}
   cancel-in-progress: false
 
 jobs:
@@ -47,6 +47,9 @@ jobs:
       CMS_ALLOWED_ORIGINS: ${{ vars.CMS_ALLOWED_ORIGINS }}
       CMS_SSO_HEADER: ${{ vars.CMS_SSO_HEADER }}
       CMS_SSO_COOKIE: ${{ vars.CMS_SSO_COOKIE }}
+      GO_LOOSE_CLIENT_ID: ${{ secrets.GO_LOOSE_CLIENT_ID }}
+      GO_LOOSE_CLIENT_SECRET: ${{ secrets.GO_LOOSE_CLIENT_SECRET }}
+      LOCAL_CA_CERT: ${{ secrets.LOCAL_CA_CERT }}
       RANCHER_NAMESPACE: ${{ vars.RANCHER_NAMESPACE }}
 
     steps:
@@ -79,7 +82,11 @@ jobs:
             echo "REGISTRY_USERNAME and REGISTRY_PASSWORD are required" >&2
             exit 1
           fi
-          namespace="${RANCHER_NAMESPACE:-cms-$TARGET_ENVIRONMENT}"
+          if [ -z "$GO_LOOSE_CLIENT_ID" ] || [ -z "$GO_LOOSE_CLIENT_SECRET" ]; then
+            echo "GO_LOOSE_CLIENT_ID and GO_LOOSE_CLIENT_SECRET are required: they come from the Go Loose console" >&2
+            exit 1
+          fi
+          namespace="${RANCHER_NAMESPACE:-go-tell-$TARGET_ENVIRONMENT}"
           if [ -n "$PUBLISHED_SHA" ]; then
             image_tag="$PUBLISHED_SHA"
           else
@@ -88,9 +95,9 @@ jobs:
           allowed_origins="$CMS_ALLOWED_ORIGINS"
           if [ -z "$allowed_origins" ]; then
             if [ "$TARGET_ENVIRONMENT" = "production" ]; then
-              allowed_origins="https://cms.urpi.be"
+              allowed_origins="https://tell.dev"
             else
-              allowed_origins="http://localhost:30081"
+              allowed_origins="http://localhost:30010"
             fi
           fi
           {
@@ -112,28 +119,42 @@ jobs:
           set -eu
           kubectl create namespace "$DEPLOY_NAMESPACE" \
             --dry-run=client -o yaml | kubectl apply -f -
-          kubectl -n "$DEPLOY_NAMESPACE" create secret docker-registry cms-registry \
+          kubectl -n "$DEPLOY_NAMESPACE" create secret docker-registry go-tell-registry \
             --docker-server=batty1039.startdedicated.net:5000 \
             --docker-username="$REGISTRY_USERNAME" \
             --docker-password="$REGISTRY_PASSWORD" \
             --dry-run=client -o yaml | kubectl apply -f -
 
+      - name: Publish the internal certificate authority
+        if: ${{ env.LOCAL_CA_CERT != '' }}
+        run: |
+          set -eu
+          printf '%s' "$LOCAL_CA_CERT" | base64 --decode > "$RUNNER_TEMP/local-ca.crt"
+          kubectl -n "$DEPLOY_NAMESPACE" create secret generic local-ca \
+            --from-file=ca.crt="$RUNNER_TEMP/local-ca.crt" \
+            --dry-run=client -o yaml | kubectl apply -f -
+
       - name: Deploy Helm release
         run: |
           set -eu
-          values_file="deploy/helm/cms/values-$TARGET_ENVIRONMENT.yaml"
+          values_file="deploy/helm/go-tell/values-$TARGET_ENVIRONMENT.yaml"
           set -- \
             --set-string "image.tag=$IMAGE_TAG" \
-            --set "imagePullSecrets[0].name=cms-registry" \
+            --set "imagePullSecrets[0].name=go-tell-registry" \
             --set-string "app.allowedOrigins=$RESOLVED_ALLOWED_ORIGINS" \
-            --set-string "secrets.ssoToken=$CMS_SSO_TOKEN"
+            --set-string "secrets.ssoToken=$CMS_SSO_TOKEN" \
+            --set-string "goLoose.clientID=$GO_LOOSE_CLIENT_ID" \
+            --set-string "goLoose.clientSecret=$GO_LOOSE_CLIENT_SECRET"
+          if [ -n "$LOCAL_CA_CERT" ]; then
+            set -- "$@" --set-string goLoose.ca.existingSecret=local-ca
+          fi
           if [ -n "$CMS_SSO_HEADER" ]; then
             set -- "$@" --set-string "app.ssoHeader=$CMS_SSO_HEADER"
           fi
           if [ -n "$CMS_SSO_COOKIE" ]; then
             set -- "$@" --set-string "app.ssoCookie=$CMS_SSO_COOKIE"
           fi
-          helm upgrade --install cms deploy/helm/cms \
+          helm upgrade --install go-tell deploy/helm/go-tell \
             --namespace "$DEPLOY_NAMESPACE" \
             --values "$values_file" \
             --atomic \
@@ -143,6 +164,6 @@ jobs:
 
       - name: Verify deployment
         run: |
-          kubectl -n "$DEPLOY_NAMESPACE" rollout status deployment/cms \
+          kubectl -n "$DEPLOY_NAMESPACE" rollout status deployment/go-tell \
             --timeout=5m
-          helm test cms --namespace "$DEPLOY_NAMESPACE" --logs
+          helm test go-tell --namespace "$DEPLOY_NAMESPACE" --logs
diff --git a/Dockerfile b/Dockerfile
index 8bc3d10..078547d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,18 +9,19 @@ RUN npm run build -- --outDir /src/ui/dist --emptyOutDir
 # Compile the Go binary with the built frontend embedded.
 FROM golang:1.27-alpine AS backend
 WORKDIR /src
-COPY go.mod ./
+COPY go.mod go.sum ./
+RUN go mod download
 COPY cmd/ ./cmd/
 COPY internal/ ./internal/
 COPY --from=ui /src/ui/dist/ ./cmd/server/web/dist/
-RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/cms ./cmd/server
+RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /out/go-tell ./cmd/server
 
 # Runtime: one static binary, no database, no shell tooling.
 FROM alpine:3.20
 RUN apk add --no-cache ca-certificates tzdata \
-    && adduser -D -u 10001 cms
-COPY --from=backend /out/cms /usr/local/bin/cms
-USER cms
+    && adduser -D -u 10001 go-tell
+COPY --from=backend /out/go-tell /usr/local/bin/go-tell
+USER go-tell
 EXPOSE 8080
 ENV CMS_HTTP_ADDR=:8080
 # Mount a volume here and set CMS_CONTENT_FILE=/data/content.json to keep edits
@@ -28,4 +29,4 @@ ENV CMS_HTTP_ADDR=:8080
 VOLUME ["/data"]
 HEALTHCHECK --interval=30s --timeout=3s --start-period=5s \
     CMD wget -qO- http://127.0.0.1:8080/health || exit 1
-ENTRYPOINT ["/usr/local/bin/cms"]
\ No newline at end of file
+ENTRYPOINT ["/usr/local/bin/go-tell"]
\ No newline at end of file
diff --git a/Makefile b/Makefile
index a460f2d..c2bf19d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,16 +1,27 @@
 SHELL := /bin/sh
 
-IMAGE ?= cms
+IMAGE ?= go-tell
 TAG ?= latest
-REGISTRY_IMAGE ?= batty1039.startdedicated.net:5000/cms
+REGISTRY_IMAGE ?= batty1039.startdedicated.net:5000/go-tell
 HELM ?= helm
-HELM_CHART := deploy/helm/cms
-HELM_RELEASE ?= cms
-HELM_NAMESPACE ?= cms
-KUBECONFIG_DEV ?= $(HOME)/.config/kubectl/rancher.urpi.local.yaml
-KUBECONFIG_PRD ?= $(HOME)/.config/kubectl/rancher.urpi.be.yaml
+HELM_CHART := deploy/helm/go-tell
+HELM_RELEASE ?= go-tell
+HELM_NAMESPACE ?= go-tell
+# The development and production releases share one cluster, so both point at the
+# same kubeconfig and only the namespace and the values profile differ.
+KUBECONFIG ?= $(HOME)/.kube/config
+# Secret holding the platform CA bundle the pod needs to reach auth.dev. Create it
+# per namespace with kubectl create secret generic local-ca --from-file=ca.crt=...
+GO_LOOSE_CA_SECRET ?= local-ca
 
-.PHONY: help ui frontend backend demo production run test check docker docker-push docker-run clean rancher-storage helm-lint helm-deploy-development helm-deploy-production helm-down-development helm-down-production helm-proxy-development helm-proxy-production
+# Helm receives the Go Loose credentials from the environment instead of a values
+# file. make sources the gitignored .env first, so a configured checkout only has
+# to run the target.
+GO_LOOSE_SET = $(if $(GO_LOOSE_CLIENT_ID),--set-string goLoose.clientID=$(GO_LOOSE_CLIENT_ID)) \
+	$(if $(GO_LOOSE_CLIENT_SECRET),--set-string goLoose.clientSecret=$(GO_LOOSE_CLIENT_SECRET)) \
+	$(if $(GO_LOOSE_CA_SECRET),--set-string goLoose.ca.existingSecret=$(GO_LOOSE_CA_SECRET))
+
+.PHONY: help ui frontend backend demo production run test check docker docker-push docker-run clean ingress-nginx-install cert-manager-install cluster-prepare helm-lint helm-deploy-development helm-deploy-production helm-down-development helm-down-production helm-proxy-development helm-proxy-production
 
 help:
 	@echo "make ui         			build the React app into cmd/server/web/dist"
@@ -25,7 +36,9 @@ help:
 	@echo "make docker-push			build and push the image to the private registry"
 	@echo "make docker-run 			run the image on :8080"
 	@echo "make clean      			remove build output"
-	@echo "make rancher-storage      		make rancher storage"
+	@echo "make ingress-nginx-install		install the ingress controller in the cluster"
+	@echo "make cert-manager-install   	install cert-manager in the cluster"
+	@echo "make cluster-prepare       		prepare the cluster for both releases"
 	@echo "make helm-lint      			linting the helm charts"
 	@echo "make helm-deploy-development		deploy to development"
 	@echo "make helm-deploy-production     	deploy to production"
@@ -85,8 +98,17 @@ clean:
 	rm -rf cmd/server/web/dist ui/dist
 	mkdir -p cmd/server/web/dist
 	printf 'Placeholder so the Go embed directive resolves before the frontend is built.\nRun `make ui` to replace this directory with the real React build.\n' > cmd/server/web/dist/placeholder.txt
-rancher-storage:
-	KUBECONFIG="$(KUBECONFIG_DEV)" kubectl apply -f deploy/rancher/local-path.yaml
+ingress-nginx-install:
+	kubectl --kubeconfig "$(KUBECONFIG)" apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.14.1/deploy/static/provider/kind/deploy.yaml
+	kubectl --kubeconfig "$(KUBECONFIG)" -n ingress-nginx rollout status deployment/ingress-nginx-controller --timeout=5m
+
+cert-manager-install:
+	kubectl --kubeconfig "$(KUBECONFIG)" apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.19.1/cert-manager.yaml
+	kubectl --kubeconfig "$(KUBECONFIG)" -n cert-manager rollout status deployment/cert-manager-webhook --timeout=5m
+	kubectl --kubeconfig "$(KUBECONFIG)" -n cert-manager rollout status deployment/cert-manager-cainjector --timeout=5m
+	kubectl --kubeconfig "$(KUBECONFIG)" -n cert-manager rollout status deployment/cert-manager --timeout=5m
+
+cluster-prepare: ingress-nginx-install cert-manager-install
 
 helm-lint:
 	$(HELM) lint $(HELM_CHART) -f $(HELM_CHART)/values-development.yaml
@@ -94,27 +116,36 @@ helm-lint:
 	$(HELM) template $(HELM_RELEASE) $(HELM_CHART) \
 		-f $(HELM_CHART)/values-development.yaml >/dev/null
 	$(HELM) template $(HELM_RELEASE) $(HELM_CHART) \
-		-f $(HELM_CHART)/values-production.yaml >/dev/null
+		-f $(HELM_CHART)/values-production.yaml \
+		--set-string goLoose.clientID=lint --set-string goLoose.clientSecret=lint >/dev/null
 
+# Go Loose credentials are never stored in the values files. Pass them on the
+# command line, from a secret store, or with --set-file:
+#   make helm-deploy-production \
+#     --set goLoose.clientID=$(GO_LOOSE_CLIENT_ID) \
+#     --set goLoose.clientSecret=$(GO_LOOSE_CLIENT_SECRET) \
+#     --set goLoose.ca.existingSecret=local-ca
 helm-deploy-development:
-	KUBECONFIG="$(KUBECONFIG_DEV)" $(HELM) upgrade --install $(HELM_RELEASE) $(HELM_CHART) \
+	KUBECONFIG="$(KUBECONFIG)" $(HELM) upgrade --install $(HELM_RELEASE) $(HELM_CHART) \
 		--namespace $(HELM_NAMESPACE)-development --create-namespace \
 		-f $(HELM_CHART)/values-development.yaml \
 		--rollback-on-failure --wait --timeout 10m
 
 helm-deploy-production:
-	KUBECONFIG="$(KUBECONFIG_PRD)" $(HELM) upgrade --install $(HELM_RELEASE) $(HELM_CHART) \
+	set -a; [ ! -f .env ] || . ./.env; set +a; \
+	KUBECONFIG="$(KUBECONFIG)" $(HELM) upgrade --install $(HELM_RELEASE) $(HELM_CHART) \
 		--namespace $(HELM_NAMESPACE)-production --create-namespace \
 		-f $(HELM_CHART)/values-production.yaml \
+		$(GO_LOOSE_SET) \
 		--rollback-on-failure --wait --timeout 10m
 
 helm-down-production:
-	KUBECONFIG="$(KUBECONFIG_PRD)" $(HELM) uninstall $(HELM_RELEASE) -n $(HELM_NAMESPACE)-production
+	KUBECONFIG="$(KUBECONFIG)" $(HELM) uninstall $(HELM_RELEASE) -n $(HELM_NAMESPACE)-production
 
 helm-down-development:
-	KUBECONFIG="$(KUBECONFIG_DEV)" $(HELM) uninstall $(HELM_RELEASE) -n $(HELM_NAMESPACE)-development
+	KUBECONFIG="$(KUBECONFIG)" $(HELM) uninstall $(HELM_RELEASE) -n $(HELM_NAMESPACE)-development
 
 helm-proxy-production:
-	KUBECONFIG="$(KUBECONFIG_DEV)" kubectl port-forward -n $(HELM_NAMESPACE)-production deployment/$(HELM_RELEASE) 31373:8080 --address 0.0.0.0
+	kubectl --kubeconfig "$(KUBECONFIG)" port-forward -n $(HELM_NAMESPACE)-production service/$(HELM_RELEASE) 31373:80 --address 0.0.0.0
 helm-proxy-development:
-	KUBECONFIG="$(KUBECONFIG_PRD)" kubectl port-forward -n $(HELM_NAMESPACE)-development deployment/$(HELM_RELEASE) 30010:8080 --address 0.0.0.0
\ No newline at end of file
+	kubectl --kubeconfig "$(KUBECONFIG)" port-forward -n $(HELM_NAMESPACE)-development service/$(HELM_RELEASE) 30010:80 --address 0.0.0.0
\ No newline at end of file
diff --git a/README.md b/README.md
index 4e41dcf..a1f907e 100644
--- a/README.md
+++ b/README.md
@@ -1,66 +1,158 @@
-# CMS project
+# Go Tell
 
-This repository contains a Go backend and React frontend for the CMS.
+Go Tell is a small content CMS: one Go binary that serves the API and embeds
+the React frontend, backed by a JSON file. It is served from a single host,
+`https://tell.dev`, and it uses [Go Loose](https://github.com/danyel/go-loose)
+to decide who is allowed to edit.
 
 ## Backend
 
 The backend targets Go 1.27.1 and uses a layered design (`internal/web`,
-`service`, and `security`). Content is seeded in memory and can be mirrored to
-a JSON file configured through `CMS_CONTENT_FILE`.
+`internal/service`, `internal/security`, `internal/golooseauth`). Content is
+seeded in memory and can be mirrored to a JSON file configured through
+`CMS_CONTENT_FILE`.
 
 ```sh
 go run ./cmd/server
 ```
 
-Configuration is read from environment variables (see `.env`). The API includes `GET /health`, `GET /api/auth/session`, `GET /api/protected`, `GET /api/content`, `GET /api/content/categories`, `GET /api/content/badges`, and `GET|PUT /api/content/:slug`.
+Configuration is read from environment variables (see `.env.example`). The API
+exposes `GET /health`, `GET /api/auth/session`, `GET /api/protected`,
+`GET /api/content`, `GET /api/content/categories`, `GET /api/content/badges`,
+and `GET|PUT /api/content/:slug`.
 
-## Single sign-on
+| Variable | Default | Purpose |
+| --- | --- | --- |
+| `CMS_HTTP_ADDR` | `:8080` | Listen address |
+| `CMS_PROFILE` | `demo` | `demo` enables the in-memory seed and the sudo terminal, anything else requires an authenticated editor |
+| `CMS_CONTENT_FILE` | empty | Path of the JSON file that stores edits; empty keeps everything in memory |
+| `CMS_POSTGRES_URL` | empty | Reserved for the PostgreSQL persistence adapter |
+| `CMS_ALLOWED_ORIGINS` | `http://localhost:5173` | `Access-Control-Allow-Origin` value |
+| `CMS_SSO_HEADER` | `X-SSO-Token` | Identity header set by the proxy; empty disables proxy identity |
+| `CMS_SSO_TOKEN` | empty | Shared secret the proxy value must match |
+| `CMS_SSO_COOKIE` | empty | Cookie carrying the same value when the proxy sets no header |
+| `GO_LOOSE_TENANT` | `tell` | Go Loose tenant that owns the login |
+| `GO_LOOSE_AUTH_DOMAIN` | `auth.dev` | Identity domain shared by all Go Loose tenants |
+| `GO_LOOSE_APP_DOMAIN` | `tell.dev` | Public host of the CMS, which also determines the redirect URI |
+| `GO_LOOSE_CLIENT_ID` | empty | Client id of the Go Loose application |
+| `GO_LOOSE_CLIENT_SECRET` | empty | Client secret of the Go Loose application |
+| `GO_LOOSE_CA_FILE` | empty | Extra CA bundle for an internally signed identity domain |
 
-The CMS never signs anyone in and stores no users, admins, or sessions. An identity-aware proxy (oauth2-proxy, Authelia, Cloudflare Access, ...) authenticates the owner and forwards a header on every accepted request:
+## Authentication
 
-- **Header present** → the request is the owner and can edit content (`canEdit: true`).
-- **Header absent** → the request is anonymous and content is read-only (`canEdit: false`).
+Go Tell accepts an editor from three sources, in this order: the demo sudo
+token, the identity-aware proxy header, and the Go Loose browser session.
+Reading content is always anonymous; `PUT /api/content/:slug` answers `401`
+without one of them.
 
-Configure the header with `CMS_SSO_HEADER` (default `X-SSO-Token`). Set `CMS_SSO_TOKEN` to a shared secret to require an exact value; leave it empty to trust any non-empty forwarded value. `CMS_SSO_COOKIE` optionally names a cookie fallback.
+### Go Loose
 
-Because the backend trusts the forwarded header, it must only be reachable through the proxy. Bind it to the loopback interface or a private network, and make sure the proxy strips any client-supplied copy of that header.
+Set `GO_LOOSE_CLIENT_ID` and `GO_LOOSE_CLIENT_SECRET` and the CMS grows a
+browser login:
 
-Anonymous visitors get a **Sign in with Google** button in the header. It redirects the browser to `VITE_SSO_LOGIN_URL` (frontend setting), where the provider authenticates the owner and returns to the page; the CMS itself never performs an OAuth exchange and holds no client secret. Leave the setting empty to hide the button when the proxy gates the whole app automatically.
+1. `GET /api/auth/login` redirects to
+   `https://<GO_LOOSE_TENANT>.<GO_LOOSE_AUTH_DOMAIN>/connect/authorize`.
+2. Go Loose authenticates the user and redirects to
+   `https://<GO_LOOSE_APP_DOMAIN>/api/auth/callback`, which exchanges the
+   authorization code and stores the session in an HTTP-only cookie.
+3. `GET /api/auth/session` then reports `authenticated: true`, the editor name,
+   and the login and logout endpoints the frontend follows.
+4. `GET|POST /api/auth/logout` revokes the session at the identity provider and
+   clears the cookie.
+
+That redirect URI has to be registered on the Go Loose application, next to the
+client id and secret. Without credentials the login routes answer `404` with
+the variables to set, and the CMS falls back to the proxy identity.
+
+The local platform application lives in the Go Loose tenant `tell`, so the login
+origin is `https://tell.auth.dev` and the interview accounts are
+`interview@tell.auth.dev` and `reviewer@tell.auth.dev`. The one-time client
+secret is recorded in the platform's gitignored `secrets/credentials.md` and in
+the gitignored `.env` of this repository.
+
+### Proxy identity
+
+Without Go Loose, an identity-aware proxy (oauth2-proxy, Authelia, Cloudflare
+Access, ...) can authenticate the owner and forward a header on every accepted
+request: the header present means the request can edit, the header absent means
+read-only. Because the backend trusts that header, it must only be reachable
+through the proxy, and the proxy must strip any client-supplied copy of it.
 
 ## Content
 
-Content supports one reusable category per document plus any number of badges. The anonymous `GET /api/content` endpoint accepts `category=engineering` and repeated `badge=go&badge=docker` filters; selected badges are combined with AND semantics. `GET /api/content/categories` returns the category dropdown values. The frontend applies these filters immediately when the category changes or when a badge is entered.
-
-Editing requires the SSO identity: `PUT /api/content/:slug` returns `401` without it. `GET /api/content/:slug` and the taxonomy endpoints are public.
+Content supports one reusable category per document plus any number of badges.
+The anonymous `GET /api/content` endpoint accepts `category=engineering` and
+repeated `badge=go&badge=docker` filters; selected badges are combined with AND
+semantics. `GET /api/content/categories` returns the category dropdown values.
+The frontend applies these filters immediately when the category changes or when
+a badge is entered.
 
 ```sh
 make backend   # run the Go server
 make frontend  # run the React app
 make run       # build the frontend, then run the server
+make check     # gofmt, vet, and tests
+make docker    # build the all-in-one image
 ```
 
-## Rancher deployment
+## Kubernetes deployment
 
-The Helm chart at `deploy/helm/cms` provides two profiles:
-
-- `values-development.yaml` runs the demo profile on NodePort `30081` with
-  ephemeral content.
-- `values-production.yaml` runs the seeded demo application on NodePort
-  `31373` with a persistent content volume. Host Nginx proxies `cms.urpi.be`
-  to this port.
-
-Validate or deploy either profile with:
+The Helm chart at `deploy/helm/go-tell` deploys the single image to the k3s
+cluster behind `ingress-nginx` and `cert-manager`, both of which have to be
+present first:
+
+```sh
+make cluster-prepare          # install ingress-nginx and cert-manager
+make helm-lint                # lint and render both profiles
+make helm-deploy-production   # namespace go-tell-production
+make helm-deploy-development  # namespace go-tell-development
+```
+
+Go Loose credentials are never written into a values file. The production target
+reads `GO_LOOSE_CLIENT_ID`, `GO_LOOSE_CLIENT_SECRET`, and `GO_LOOSE_CA_SECRET`
+from the environment, after sourcing the gitignored `.env`:
 
 ```sh
-make helm-lint
-make helm-deploy-development
 make helm-deploy-production
 ```
 
-The deploy workflow automatically deploys a successful `main` image build to
-production and also supports manual development or production deployments.
-Create GitHub environments named `development` and `production`. Each needs
-the secrets `RANCHER_KUBE_CONFIG_BASE64`, `REGISTRY_USERNAME`, and
-`REGISTRY_PASSWORD`. `CMS_SSO_TOKEN` is optional. Environment variables
-`RANCHER_NAMESPACE`, `CMS_ALLOWED_ORIGINS`, `CMS_SSO_HEADER`, and
-`CMS_SSO_COOKIE` can override the chart defaults.
\ No newline at end of file
+They end up in the release secret and in the `--set-string` flags the target
+builds. Override any of them on the command line when deploying from elsewhere:
+
+```sh
+make helm-deploy-production \
+  --set-string goLoose.clientID="$GO_LOOSE_CLIENT_ID" \
+  --set-string goLoose.clientSecret="$GO_LOOSE_CLIENT_SECRET" \
+  --set-string goLoose.ca.existingSecret=local-ca
+```
+
+`goLoose.ca.existingSecret` names the Secret holding the platform CA bundle, so
+the pod trusts `tell.auth.dev`. It has to exist in the namespace before the
+release starts:
+
+```sh
+kubectl -n go-tell-production create secret generic local-ca \
+  --from-file=ca.crt=~/sources/go/infrastructure/certs/local-ca.crt
+```
+
+`go-tell-production` is the profile that matters: one host, TLS from
+cert-manager, and a persistent volume for the content file. `go-tell-development`
+runs the demo profile on NodePort `30010` with ephemeral content and no Go
+Loose login, which is what `make frontend` talks to.
+
+The earlier dedicated-host deployment (`cms.urpi.be` through host Nginx on a
+Rancher cluster) is retired: `deploy/nginx` and `deploy/rancher` are gone, and
+every Makefile target talks to `~/.kube/config`.
+
+## Continuous delivery
+
+`build-test-push.yml` publishes `batty1039.startdedicated.net:5000/go-tell` on
+every push to `main`. `deploy-rancher.yml` deploys a successful build to
+production and can also be dispatched by hand for either profile. Create the
+GitHub environments `development` and `production` with the secrets
+`RANCHER_KUBE_CONFIG_BASE64`, `REGISTRY_USERNAME`, `REGISTRY_PASSWORD`,
+`GO_LOOSE_CLIENT_ID`, `GO_LOOSE_CLIENT_SECRET`, and optionally
+`CMS_SSO_TOKEN` and `LOCAL_CA_CERT` (the internal CA bundle mounted through
+`goLoose.ca.existingSecret`). The variables `RANCHER_NAMESPACE`,
+`CMS_ALLOWED_ORIGINS`, `CMS_SSO_HEADER`, and `CMS_SSO_COOKIE` override the
+chart defaults.
\ No newline at end of file
diff --git a/cmd/server/main.go b/cmd/server/main.go
index 2050cce..b4dfe13 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -7,10 +7,11 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/danyel/go-cms/internal/config"
-	"github.com/danyel/go-cms/internal/security"
-	"github.com/danyel/go-cms/internal/service"
-	"github.com/danyel/go-cms/internal/web"
+	"github.com/danyel/go-tell/internal/config"
+	"github.com/danyel/go-tell/internal/golooseauth"
+	"github.com/danyel/go-tell/internal/security"
+	"github.com/danyel/go-tell/internal/service"
+	"github.com/danyel/go-tell/internal/web"
 )
 
 // web/dist holds the compiled React app. A placeholder file is committed so the
@@ -33,6 +34,10 @@ func main() {
 	}
 
 	sso := security.NewSSOTokenVerifier(cfg.SSOHeader, cfg.SSOToken, cfg.SSOCookie)
+	browser, err := golooseauth.New(cfg.GoLoose)
+	if err != nil {
+		log.Fatal(err)
+	}
 	var demo *service.DemoAuth
 	if cfg.Profile == "demo" {
 		demo = service.NewDemoAuth()
@@ -40,9 +45,14 @@ func main() {
 	} else {
 		log.Printf("CMS profile: %s (SSO identity required; PostgreSQL URL configured: %t)", cfg.Profile, cfg.PostgresURL != "")
 	}
+	if browser != nil {
+		log.Printf("Go Loose login enabled for tenant %q", cfg.GoLoose.Tenant)
+	} else {
+		log.Print("Go Loose login disabled: set GO_LOOSE_CLIENT_ID and GO_LOOSE_CLIENT_SECRET to enable it")
+	}
 	server := &http.Server{
 		Addr:              cfg.HTTPAddr,
-		Handler:           web.NewHandler(content, assets, sso, demo).Routes(cfg.AllowedOrigins),
+		Handler:           web.NewHandler(content, assets, sso, browser, demo).Routes(cfg.AllowedOrigins),
 		ReadHeaderTimeout: 10 * time.Second,
 	}
 	log.Printf("CMS listening on %s", cfg.HTTPAddr)
diff --git a/deploy/helm/cms/Chart.yaml b/deploy/helm/cms/Chart.yaml
deleted file mode 100644
index 191b973..0000000
--- a/deploy/helm/cms/Chart.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-apiVersion: v2
-name: cms
-description: CMS application
-type: application
-version: 0.1.0
-appVersion: "0.1.0"
diff --git a/deploy/helm/cms/templates/NOTES.txt b/deploy/helm/cms/templates/NOTES.txt
deleted file mode 100644
index 1323af0..0000000
--- a/deploy/helm/cms/templates/NOTES.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-CMS has been installed in namespace {{ .Release.Namespace }}.
-
-{{- if .Values.ingress.enabled }}
-Open the host configured in ingress.hosts.
-{{- else if eq .Values.service.type "NodePort" }}
-The application is exposed on cluster node port {{ .Values.service.nodePort }}.
-Open it through the configured external reverse proxy.
-{{- else }}
-Run:
-  kubectl -n {{ .Release.Namespace }} port-forward service/{{ include "cms.fullname" . }} 8080:{{ .Values.service.port }}
-Then open http://127.0.0.1:8080.
-{{- end }}
diff --git a/deploy/helm/cms/templates/_helpers.tpl b/deploy/helm/cms/templates/_helpers.tpl
deleted file mode 100644
index 1a79b2b..0000000
--- a/deploy/helm/cms/templates/_helpers.tpl
+++ /dev/null
@@ -1,33 +0,0 @@
-{{- define "cms.name" -}}
-{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
-{{- end }}
-
-{{- define "cms.fullname" -}}
-{{- if .Values.fullnameOverride }}
-{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
-{{- else }}
-{{- $name := default .Chart.Name .Values.nameOverride }}
-{{- if contains $name .Release.Name }}
-{{- .Release.Name | trunc 63 | trimSuffix "-" }}
-{{- else }}
-{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
-{{- end }}
-{{- end }}
-{{- end }}
-
-{{- define "cms.labels" -}}
-helm.sh/chart: {{ printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" }}
-app.kubernetes.io/name: {{ include "cms.name" . }}
-app.kubernetes.io/instance: {{ .Release.Name }}
-app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
-app.kubernetes.io/managed-by: {{ .Release.Service }}
-{{- end }}
-
-{{- define "cms.selectorLabels" -}}
-app.kubernetes.io/name: {{ include "cms.name" . }}
-app.kubernetes.io/instance: {{ .Release.Name }}
-{{- end }}
-
-{{- define "cms.secretName" -}}
-{{- printf "%s-secrets" (include "cms.fullname" .) }}
-{{- end }}
diff --git a/deploy/helm/cms/templates/ingress.yaml b/deploy/helm/cms/templates/ingress.yaml
deleted file mode 100644
index 830fb50..0000000
--- a/deploy/helm/cms/templates/ingress.yaml
+++ /dev/null
@@ -1,35 +0,0 @@
-{{- if .Values.ingress.enabled }}
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: {{ include "cms.fullname" . }}
-  labels:
-    {{- include "cms.labels" . | nindent 4 }}
-  {{- with .Values.ingress.annotations }}
-  annotations:
-    {{- toYaml . | nindent 4 }}
-  {{- end }}
-spec:
-  {{- with .Values.ingress.className }}
-  ingressClassName: {{ . }}
-  {{- end }}
-  {{- with .Values.ingress.tls }}
-  tls:
-    {{- toYaml . | nindent 4 }}
-  {{- end }}
-  rules:
-    {{- range .Values.ingress.hosts }}
-    - host: {{ .host | quote }}
-      http:
-        paths:
-          {{- range .paths }}
-          - path: {{ .path }}
-            pathType: {{ .pathType }}
-            backend:
-              service:
-                name: {{ include "cms.fullname" $ }}
-                port:
-                  number: {{ $.Values.service.port }}
-          {{- end }}
-    {{- end }}
-{{- end }}
diff --git a/deploy/helm/cms/templates/secret.yaml b/deploy/helm/cms/templates/secret.yaml
deleted file mode 100644
index 151a838..0000000
--- a/deploy/helm/cms/templates/secret.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: {{ include "cms.secretName" . }}
-  labels:
-    {{- include "cms.labels" . | nindent 4 }}
-type: Opaque
-stringData:
-  sso-token: {{ .Values.secrets.ssoToken | quote }}
diff --git a/deploy/helm/cms/values.yaml b/deploy/helm/cms/values.yaml
deleted file mode 100644
index 6182449..0000000
--- a/deploy/helm/cms/values.yaml
+++ /dev/null
@@ -1,76 +0,0 @@
-nameOverride: ""
-fullnameOverride: ""
-
-replicaCount: 1
-
-image:
-  repository: batty1039.startdedicated.net:5000/cms
-  tag: latest
-  pullPolicy: IfNotPresent
-
-imagePullSecrets: []
-
-app:
-  environment: production
-  allowedOrigins: http://localhost:8080
-  contentFile: /data/content.json
-  postgresURL: ""
-  ssoHeader: X-SSO-Token
-  ssoCookie: ""
-
-secrets:
-  ssoToken: ""
-
-service:
-  type: ClusterIP
-  port: 80
-  nodePort: null
-
-ingress:
-  enabled: false
-  className: nginx
-  annotations: {}
-  hosts:
-    - host: cms.local
-      paths:
-        - path: /
-          pathType: Prefix
-  tls: []
-
-resources:
-  requests:
-    cpu: 100m
-    memory: 128Mi
-  limits:
-    cpu: 500m
-    memory: 512Mi
-
-podAnnotations: {}
-podLabels: {}
-
-podSecurityContext:
-  fsGroup: 10001
-  fsGroupChangePolicy: OnRootMismatch
-
-securityContext:
-  allowPrivilegeEscalation: false
-  capabilities:
-    drop:
-      - ALL
-  readOnlyRootFilesystem: true
-  runAsNonRoot: true
-  runAsUser: 10001
-
-strategy:
-  type: Recreate
-
-persistence:
-  enabled: true
-  size: 2Gi
-  accessModes:
-    - ReadWriteOnce
-  storageClass: ""
-
-nodeSelector: {}
-tolerations: []
-affinity: {}
diff --git a/deploy/helm/cms/.helmignore b/deploy/helm/go-tell/.helmignore
similarity index 100%
rename from deploy/helm/cms/.helmignore
rename to deploy/helm/go-tell/.helmignore
diff --git a/deploy/helm/go-tell/Chart.yaml b/deploy/helm/go-tell/Chart.yaml
new file mode 100644
index 0000000..ccf3939
--- /dev/null
+++ b/deploy/helm/go-tell/Chart.yaml
@@ -0,0 +1,6 @@
+apiVersion: v2
+name: go-tell
+description: Go Tell, a single-host content CMS behind Go Loose
+type: application
+version: 0.2.0
+appVersion: "0.1.0"
\ No newline at end of file
diff --git a/deploy/helm/go-tell/README.md b/deploy/helm/go-tell/README.md
new file mode 100644
index 0000000..6417930
--- /dev/null
+++ b/deploy/helm/go-tell/README.md
@@ -0,0 +1,221 @@
+# Go Tell Helm chart
+
+This chart deploys Go Tell as one image: a Go binary that serves the API and
+embeds the React frontend, with a persistent volume for the content file. It
+publishes a single HTTPS host, `https://tell.dev`, behind ingress-nginx with a
+certificate from cert-manager.
+
+## 1. What the chart creates
+
+| Resource | Name | Purpose |
+|---|---|---|
+| Deployment | `go-tell` | CMS binary, API and web UI in one container |
+| Service | `go-tell` | Cluster-internal service, ingress backend |
+| Ingress | `go-tell` | One rule and one TLS SAN for `tell.dev` |
+| Issuer | `go-tell-selfsigned` | cert-manager self-signed issuer |
+| Certificate | `go-tell-ca` | Chart CA that signs the leaf certificate |
+| Certificate | `go-tell` | Leaf certificate for `tell.dev` |
+| PersistentVolumeClaim | `go-tell` | Content file storage, `emptyDir` when disabled |
+| Secret | `go-tell-secrets` | Go Loose client credentials and the proxy token |
+
+There are no tenants and no per-tenant hosts: one release, one host, one
+content file.
+
+## 2. Prerequisites
+
+- A Kubernetes cluster reachable through `KUBECONFIG`, by default
+  `~/.kube/config`.
+- A `StorageClass` when `persistence.enabled` is `true`.
+- ingress-nginx with the `nginx` ingress class: `make ingress-nginx-install`.
+- cert-manager when `ingress.tls.enabled` is `true`: `make cert-manager-install`.
+- Cluster nodes trusting `batty1039.startdedicated.net:5000` as an insecure
+  registry, or an HTTPS registry.
+
+Run everything the chart depends on in one step:
+
+```bash
+make cluster-prepare
+```
+
+## 3. Deploy
+
+```bash
+make helm-lint
+make helm-deploy-development
+```
+
+The development profile runs the demo profile on NodePort `30010` with
+ephemeral content and Go Loose disabled, which is what `make frontend` talks to.
+Production runs the persisted content file with browser sign-in:
+
+```bash
+export GO_LOOSE_CLIENT_ID=...
+export GO_LOOSE_CLIENT_SECRET=...
+make helm-deploy-production
+```
+
+Credentials are never written into a values file. They reach the release
+secret through `--set`, or through the `GO_LOOSE_CLIENT_ID` and
+`GO_LOOSE_CLIENT_SECRET` secrets of the deploy workflow. The chart refuses to
+render when `goLoose.enabled` is true and either of them is missing, because a
+release without credentials would have no way to sign anybody in.
+
+After a successful install the release notes list the URL and the command that
+exports the CA certificate. With the local platform, prefer
+`docs/KUBERNETES-DEPLOYMENTS.md` in the infrastructure repository, which covers
+`/etc/hosts` entries and CA trust for the whole platform.
+
+## 4. The single host
+
+`host` is the only host the release serves:
+
+```yaml
+host: tell.dev
+```
+
+The chart derives, without any extra configuration:
+
+- One ingress rule for that host.
+- One certificate SAN for that host, so a single secret covers the release.
+- `GO_LOOSE_APP_DOMAIN`, which the API turns into the redirect URI
+  `https://tell.dev/api/auth/callback`.
+
+That redirect URI has to be registered on the Go Loose application together with
+the client id and secret. `goLoose.tenant` names the Go Loose tenant that owns
+the login, which decides where the browser is sent first:
+
+```
+https://tell.dev/api/auth/login
+  -> https://tell.auth.dev/connect/authorize
+  -> https://tell.dev/api/auth/callback
+```
+
+## 5. Values
+
+### Top level
+
+| Key | Default | Description |
+|---|---|---|
+| `nameOverride` | `""` | Overrides the chart name in resource names and labels |
+| `fullnameOverride` | `""` | Replaces the generated resource name prefix |
+| `host` | `tell.dev` | Public host of the CMS |
+| `replicaCount` | `1` | CMS replicas, the content file is shared through the volume |
+| `imagePullSecrets` | `[]` | Pull secrets added to the pod |
+| `nodeSelector`, `tolerations`, `affinity` | empty | Scheduling of the deployment |
+
+### image and app
+
+| Key | Default | Description |
+|---|---|---|
+| `image.repository` | `batty1039.startdedicated.net:5000/go-tell` | CMS image |
+| `image.tag` | `latest` | CMS image tag |
+| `image.pullPolicy` | `IfNotPresent` | CMS pull policy |
+| `app.profile` | `production` | `CMS_PROFILE`, `demo` enables the in-memory seed and the sudo terminal |
+| `app.allowedOrigins` | `https://tell.dev` | `CMS_ALLOWED_ORIGINS` |
+| `app.contentFile` | `/data/content.json` | `CMS_CONTENT_FILE`, ignored when persistence is disabled |
+| `app.postgresURL` | `""` | `CMS_POSTGRES_URL`, reserved for the PostgreSQL adapter |
+| `app.ssoHeader` | `X-SSO-Token` | `CMS_SSO_HEADER`, empty disables the proxy identity |
+| `app.ssoCookie` | `""` | `CMS_SSO_COOKIE`, cookie carrying the same value |
+| `app.resources` | `100m`/`128Mi` to `500m`/`512Mi` | Requests and limits |
+| `app.podAnnotations`, `app.podLabels` | `{}` | Extra pod metadata |
+
+### goLoose
+
+| Key | Default | Description |
+|---|---|---|
+| `goLoose.enabled` | `true` | Injects the Go Loose environment into the pod |
+| `goLoose.tenant` | `tell` | Go Loose tenant that owns the login, one DNS label |
+| `goLoose.authDomain` | `auth.dev` | Identity domain shared by every Go Loose tenant |
+| `goLoose.appDomain` | `tell.dev` | Public host, which determines the redirect URI |
+| `goLoose.clientID` | `""` | Client id of the Go Loose application, required when enabled |
+| `goLoose.clientSecret` | `""` | Client secret of the Go Loose application, required when enabled |
+| `goLoose.ca.existingSecret` | `""` | Secret holding the CA bundle of an internally signed identity domain |
+| `goLoose.ca.key` | `ca.crt` | Key projected from that secret |
+| `goLoose.ca.mountPath` | `/certs/local-ca.crt` | `GO_LOOSE_CA_FILE` target |
+| `secrets.ssoToken` | `""` | Shared secret the proxy header value must match |
+
+The CA bundle is only mounted when `goLoose.ca.existingSecret` is set. A
+publicly signed identity domain therefore needs no extra configuration, while an
+internally signed one, such as the local platform, has to publish its
+certificate first:
+
+```bash
+kubectl -n go-tell-production create secret generic local-ca --from-file=ca.crt=certs/local-ca.crt
+```
+
+### ingress and certManager
+
+| Key | Default | Description |
+|---|---|---|
+| `ingress.enabled` | `true` | Creates the ingress |
+| `ingress.className` | `nginx` | Ingress class of the controller |
+| `ingress.annotations` | TLS redirect | Controller annotations |
+| `ingress.path` | `/` | Path routed to the service |
+| `ingress.pathType` | `Prefix` | Path type of that route |
+| `ingress.tls.enabled` | `true` | Terminates TLS on the controller |
+| `ingress.tls.secretName` | `""` | Defaults to `<fullname>-tls` |
+| `ingress.tls.existingSecret` | `""` | Uses a certificate managed outside the chart |
+| `certManager.enabled` | `true` | Chart creates the certificates |
+| `certManager.issuerRef` | `{}` | Uses an existing issuer instead of the chart CA |
+| `certManager.duration` | `8760h` | Certificate lifetime |
+| `certManager.renewBefore` | `720h` | Renewal window |
+| `certManager.caSecretName` | `""` | Defaults to `<fullname>-ca` |
+
+Four certificate objects are created: a self-signed `Issuer`, a CA
+`Certificate` stored in `caSecretName`, an `Issuer` that serves that CA, and the
+leaf `Certificate` stored in the ingress TLS secret for `host`. Set
+`certManager.issuerRef` to sign with a cluster issuer instead:
+
+```yaml
+certManager:
+  issuerRef:
+    name: internal-acme
+    kind: ClusterIssuer
+    group: cert-manager.io
+```
+
+Set `ingress.tls.existingSecret` to use a certificate the chart does not own,
+and `certManager.enabled: false` to stop emitting cert-manager objects.
+
+### Storage and pod security
+
+| Key | Default | Description |
+|---|---|---|
+| `persistence.enabled` | `true` | Persistent volume for the content file |
+| `persistence.size` | `2Gi` | Volume size |
+| `persistence.accessModes` | `[ReadWriteOnce]` | Volume access modes |
+| `persistence.storageClass` | `""` | Storage class, the cluster default when empty |
+| `podSecurityContext` | `fsGroup: 10001` | Pod security context, gives the volume to the image user |
+| `securityContext` | non-root `10001`, read-only root filesystem | Container security context |
+| `strategy.type` | `Recreate` | The old pod releases the volume before the new one starts |
+
+The image runs as its own `go-tell` user (uid `10001`) and declares no
+`HOME`, so `readOnlyRootFilesystem` needs the writable `/tmp` mount the chart
+adds.
+
+## 6. Upgrade and remove
+
+```bash
+make helm-deploy-production
+helm -n go-tell-production history go-tell
+helm -n go-tell-production rollback go-tell 1
+make helm-down-production
+```
+
+Keep the Go Loose credentials outside the cluster: uninstalling removes the
+release secret, and Go Loose shows a new secret only once.
+
+## 7. Verify
+
+```bash
+kubectl -n go-tell-production get ingress go-tell
+kubectl -n go-tell-production get certificate
+kubectl -n go-tell-production rollout status deployment/go-tell
+curl --resolve tell.dev:443:127.0.0.1 --cacert go-tell-ca.crt https://tell.dev/health
+curl -I --cacert go-tell-ca.crt https://tell.dev/api/auth/login
+```
+
+The login request must answer `302` towards
+`https://tell.auth.dev/connect/authorize`; a `404` means the release has no Go
+Loose credentials. The test pod installed by `helm test` checks the health
+endpoint from inside the cluster.
\ No newline at end of file
diff --git a/deploy/helm/go-tell/templates/NOTES.txt b/deploy/helm/go-tell/templates/NOTES.txt
new file mode 100644
index 0000000..921dc9e
--- /dev/null
+++ b/deploy/helm/go-tell/templates/NOTES.txt
@@ -0,0 +1,35 @@
+Go Tell is installed in namespace {{ .Release.Namespace }}.
+
+{{- if .Values.ingress.enabled }}
+
+Open https://{{ .Values.host }}/.
+
+{{- if .Values.goLoose.enabled }}
+
+Signing in goes through Go Loose:
+  1. https://{{ .Values.goLoose.tenant }}.{{ .Values.goLoose.authDomain }}/connect/authorize redirects to
+     https://{{ .Values.goLoose.appDomain }}/api/auth/callback.
+  2. That redirect URI has to be registered on the Go Loose application, next
+     to client id {{ .Values.goLoose.clientID }}.
+{{- end }}
+{{- if .Values.ingress.tls.enabled }}
+
+{{- if .Values.certManager.enabled }}
+{{- if not .Values.certManager.issuerRef }}
+The certificate is issued by the self-signed chain in this release. Export the
+root once so the browser trusts it:
+  kubectl -n {{ .Release.Namespace }} get secret {{ include "go-tell.certManagerCASecretName" . }} \
+    -o jsonpath='{.data.ca\.crt}' | base64 -d > ca.crt
+{{- end }}
+{{- end }}
+{{- end }}
+{{- else if eq .Values.service.type "NodePort" }}
+
+The application is exposed on cluster node port {{ .Values.service.nodePort }}.
+Open it through the configured external reverse proxy.
+{{- else }}
+
+Run:
+  kubectl -n {{ .Release.Namespace }} port-forward service/{{ include "go-tell.fullname" . }} 8080:{{ .Values.service.port }}
+Then open http://127.0.0.1:8080.
+{{- end }}
\ No newline at end of file
diff --git a/deploy/helm/go-tell/templates/_helpers.tpl b/deploy/helm/go-tell/templates/_helpers.tpl
new file mode 100644
index 0000000..93e0776
--- /dev/null
+++ b/deploy/helm/go-tell/templates/_helpers.tpl
@@ -0,0 +1,77 @@
+{{- define "go-tell.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{- define "go-tell.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{- define "go-tell.labels" -}}
+helm.sh/chart: {{ printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" }}
+app.kubernetes.io/name: {{ include "go-tell.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{- define "go-tell.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "go-tell.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{- define "go-tell.secretName" -}}
+{{- printf "%s-secrets" (include "go-tell.fullname" .) }}
+{{- end }}
+
+{{- define "go-tell.certManagerCASecretName" -}}
+{{- default (printf "%s-ca" (include "go-tell.fullname" .)) .Values.certManager.caSecretName }}
+{{- end }}
+
+{{- define "go-tell.tlsSecretName" -}}
+{{- default (printf "%s-tls" (include "go-tell.fullname" .)) .Values.ingress.tls.secretName }}
+{{- end }}
+
+{{- define "go-tell.certManagerIssuerRef" -}}
+{{- if kindIs "map" .Values.certManager.issuerRef }}
+name: {{ required "certManager.issuerRef.name is required when certManager.issuerRef is set" .Values.certManager.issuerRef.name }}
+kind: {{ default "Issuer" .Values.certManager.issuerRef.kind }}
+group: {{ default "cert-manager.io" .Values.certManager.issuerRef.group }}
+{{- else }}
+name: {{ .Values.certManager.issuerRef }}
+kind: Issuer
+group: cert-manager.io
+{{- end }}
+{{- end }}
+
+{{/*
+CA bundle used to verify the identity domain. Mounted only when the operator
+points goLoose.ca.existingSecret at a certificate, so a publicly signed identity
+domain needs no extra configuration.
+*/}}
+{{- define "go-tell.caVolume" -}}
+{{- if and .Values.goLoose.enabled .Values.goLoose.ca.existingSecret }}
+- name: go-loose-ca
+  secret:
+    secretName: {{ .Values.goLoose.ca.existingSecret }}
+    items:
+      - key: {{ .Values.goLoose.ca.key }}
+        path: {{ base .Values.goLoose.ca.mountPath }}
+{{- end }}
+{{- end }}
+
+{{- define "go-tell.caVolumeMount" -}}
+{{- if and .Values.goLoose.enabled .Values.goLoose.ca.existingSecret }}
+- name: go-loose-ca
+  mountPath: {{ dir .Values.goLoose.ca.mountPath }}
+  readOnly: true
+{{- end }}
+{{- end }}
\ No newline at end of file
diff --git a/deploy/helm/cms/templates/app-deployment.yaml b/deploy/helm/go-tell/templates/app-deployment.yaml
similarity index 67%
rename from deploy/helm/cms/templates/app-deployment.yaml
rename to deploy/helm/go-tell/templates/app-deployment.yaml
index bee05cb..2949aac 100644
--- a/deploy/helm/cms/templates/app-deployment.yaml
+++ b/deploy/helm/go-tell/templates/app-deployment.yaml
@@ -1,16 +1,16 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: {{ include "cms.fullname" . }}
+  name: {{ include "go-tell.fullname" . }}
   labels:
-    {{- include "cms.labels" . | nindent 4 }}
+    {{- include "go-tell.labels" . | nindent 4 }}
 spec:
   replicas: {{ .Values.replicaCount }}
   strategy:
     type: {{ .Values.strategy.type }}
   selector:
     matchLabels:
-      {{- include "cms.selectorLabels" . | nindent 6 }}
+      {{- include "go-tell.selectorLabels" . | nindent 6 }}
       app.kubernetes.io/component: application
   template:
     metadata:
@@ -20,7 +20,7 @@ spec:
         {{- toYaml . | nindent 8 }}
         {{- end }}
       labels:
-        {{- include "cms.selectorLabels" . | nindent 8 }}
+        {{- include "go-tell.selectorLabels" . | nindent 8 }}
         app.kubernetes.io/component: application
         {{- with .Values.podLabels }}
         {{- toYaml . | nindent 8 }}
@@ -34,14 +34,14 @@ spec:
       securityContext:
         {{- toYaml .Values.podSecurityContext | nindent 8 }}
       containers:
-        - name: cms
+        - name: go-tell
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           securityContext:
             {{- toYaml .Values.securityContext | nindent 12 }}
           env:
             - name: CMS_PROFILE
-              value: {{ .Values.app.environment | quote }}
+              value: {{ .Values.app.profile | quote }}
             - name: CMS_ALLOWED_ORIGINS
               value: {{ .Values.app.allowedOrigins | quote }}
             - name: CMS_CONTENT_FILE
@@ -55,8 +55,30 @@ spec:
             - name: CMS_SSO_TOKEN
               valueFrom:
                 secretKeyRef:
-                  name: {{ include "cms.secretName" . }}
+                  name: {{ include "go-tell.secretName" . }}
                   key: sso-token
+            {{- if .Values.goLoose.enabled }}
+            - name: GO_LOOSE_TENANT
+              value: {{ .Values.goLoose.tenant | quote }}
+            - name: GO_LOOSE_AUTH_DOMAIN
+              value: {{ .Values.goLoose.authDomain | quote }}
+            - name: GO_LOOSE_APP_DOMAIN
+              value: {{ .Values.goLoose.appDomain | quote }}
+            - name: GO_LOOSE_CLIENT_ID
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "go-tell.secretName" . }}
+                  key: go-loose-client-id
+            - name: GO_LOOSE_CLIENT_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "go-tell.secretName" . }}
+                  key: go-loose-client-secret
+            {{- if .Values.goLoose.ca.existingSecret }}
+            - name: GO_LOOSE_CA_FILE
+              value: {{ .Values.goLoose.ca.mountPath | quote }}
+            {{- end }}
+            {{- end }}
           ports:
             - name: http
               containerPort: 8080
@@ -86,14 +108,16 @@ spec:
             - name: content
               mountPath: /data
             {{- end }}
+            {{- include "go-tell.caVolumeMount" . | nindent 12 }}
       volumes:
         - name: temporary-files
           emptyDir: {}
         {{- if .Values.persistence.enabled }}
         - name: content
           persistentVolumeClaim:
-            claimName: {{ include "cms.fullname" . }}
+            claimName: {{ include "go-tell.fullname" . }}
         {{- end }}
+        {{- include "go-tell.caVolume" . | nindent 8 }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
@@ -105,4 +129,4 @@ spec:
       {{- with .Values.tolerations }}
       tolerations:
         {{- toYaml . | nindent 8 }}
-      {{- end }}
+      {{- end }}
\ No newline at end of file
diff --git a/deploy/helm/cms/templates/app-service.yaml b/deploy/helm/go-tell/templates/app-service.yaml
similarity index 72%
rename from deploy/helm/cms/templates/app-service.yaml
rename to deploy/helm/go-tell/templates/app-service.yaml
index 659ed29..ddc717d 100644
--- a/deploy/helm/cms/templates/app-service.yaml
+++ b/deploy/helm/go-tell/templates/app-service.yaml
@@ -1,13 +1,13 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: {{ include "cms.fullname" . }}
+  name: {{ include "go-tell.fullname" . }}
   labels:
-    {{- include "cms.labels" . | nindent 4 }}
+    {{- include "go-tell.labels" . | nindent 4 }}
 spec:
   type: {{ .Values.service.type }}
   selector:
-    {{- include "cms.selectorLabels" . | nindent 4 }}
+    {{- include "go-tell.selectorLabels" . | nindent 4 }}
     app.kubernetes.io/component: application
   ports:
     - name: http
diff --git a/deploy/helm/go-tell/templates/certificate.yaml b/deploy/helm/go-tell/templates/certificate.yaml
new file mode 100644
index 0000000..1a75edb
--- /dev/null
+++ b/deploy/helm/go-tell/templates/certificate.yaml
@@ -0,0 +1,74 @@
+{{- if and .Values.ingress.enabled .Values.ingress.tls.enabled .Values.certManager.enabled (not .Values.ingress.tls.existingSecret) }}
+{{- $fullname := include "go-tell.fullname" . }}
+{{- $caSecret := include "go-tell.certManagerCASecretName" . }}
+{{- $tlsSecret := include "go-tell.tlsSecretName" . }}
+{{- if not .Values.certManager.issuerRef }}
+apiVersion: cert-manager.io/v1
+kind: Issuer
+metadata:
+  name: {{ $fullname }}-selfsigned
+  labels:
+    {{- include "go-tell.labels" . | nindent 4 }}
+    app.kubernetes.io/component: certificate
+spec:
+  selfSigned: {}
+---
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: {{ $fullname }}-ca
+  labels:
+    {{- include "go-tell.labels" . | nindent 4 }}
+    app.kubernetes.io/component: certificate
+spec:
+  secretName: {{ $caSecret }}
+  commonName: {{ printf "%s-ca" $fullname }}
+  duration: {{ .Values.certManager.duration }}
+  renewBefore: {{ .Values.certManager.renewBefore }}
+  privateKey:
+    algorithm: ECDSA
+    size: 256
+  issuerRef:
+    name: {{ $fullname }}-selfsigned
+    kind: Issuer
+    group: cert-manager.io
+---
+apiVersion: cert-manager.io/v1
+kind: Issuer
+metadata:
+  name: {{ $fullname }}-ca
+  labels:
+    {{- include "go-tell.labels" . | nindent 4 }}
+    app.kubernetes.io/component: certificate
+spec:
+  ca:
+    secretName: {{ $caSecret }}
+---
+{{- end }}
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: {{ $fullname }}
+  labels:
+    {{- include "go-tell.labels" . | nindent 4 }}
+    app.kubernetes.io/component: certificate
+spec:
+  secretName: {{ $tlsSecret }}
+  duration: {{ .Values.certManager.duration }}
+  renewBefore: {{ .Values.certManager.renewBefore }}
+  privateKey:
+    algorithm: ECDSA
+    size: 256
+  usages:
+    - server auth
+  dnsNames:
+    - {{ .Values.host | quote }}
+  issuerRef:
+    {{- if .Values.certManager.issuerRef }}
+    {{- include "go-tell.certManagerIssuerRef" . | nindent 4 }}
+    {{- else }}
+    name: {{ $fullname }}-ca
+    kind: Issuer
+    group: cert-manager.io
+    {{- end }}
+{{- end }}
\ No newline at end of file
diff --git a/deploy/helm/go-tell/templates/ingress.yaml b/deploy/helm/go-tell/templates/ingress.yaml
new file mode 100644
index 0000000..295d54a
--- /dev/null
+++ b/deploy/helm/go-tell/templates/ingress.yaml
@@ -0,0 +1,33 @@
+{{- if .Values.ingress.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "go-tell.fullname" . }}
+  labels:
+    {{- include "go-tell.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- with .Values.ingress.className }}
+  ingressClassName: {{ . }}
+  {{- end }}
+  {{- if .Values.ingress.tls.enabled }}
+  tls:
+    - hosts:
+        - {{ .Values.host | quote }}
+      secretName: {{ .Values.ingress.tls.existingSecret | default (include "go-tell.tlsSecretName" .) }}
+  {{- end }}
+  rules:
+    - host: {{ .Values.host | quote }}
+      http:
+        paths:
+          - path: {{ .Values.ingress.path }}
+            pathType: {{ .Values.ingress.pathType }}
+            backend:
+              service:
+                name: {{ include "go-tell.fullname" . }}
+                port:
+                  number: {{ .Values.service.port }}
+{{- end }}
\ No newline at end of file
diff --git a/deploy/helm/cms/templates/persistent-volume-claim.yaml b/deploy/helm/go-tell/templates/persistent-volume-claim.yaml
similarity index 79%
rename from deploy/helm/cms/templates/persistent-volume-claim.yaml
rename to deploy/helm/go-tell/templates/persistent-volume-claim.yaml
index 6f04017..b05a0e5 100644
--- a/deploy/helm/cms/templates/persistent-volume-claim.yaml
+++ b/deploy/helm/go-tell/templates/persistent-volume-claim.yaml
@@ -2,9 +2,9 @@
 apiVersion: v1
 kind: PersistentVolumeClaim
 metadata:
-  name: {{ include "cms.fullname" . }}
+  name: {{ include "go-tell.fullname" . }}
   labels:
-    {{- include "cms.labels" . | nindent 4 }}
+    {{- include "go-tell.labels" . | nindent 4 }}
 spec:
   accessModes:
     {{- toYaml .Values.persistence.accessModes | nindent 4 }}
diff --git a/deploy/helm/go-tell/templates/secret.yaml b/deploy/helm/go-tell/templates/secret.yaml
new file mode 100644
index 0000000..5c1f159
--- /dev/null
+++ b/deploy/helm/go-tell/templates/secret.yaml
@@ -0,0 +1,20 @@
+{{- $name := include "go-tell.secretName" . -}}
+{{- if and .Values.goLoose.enabled (not .Values.goLoose.clientID) }}
+{{- fail "goLoose.clientID is required when goLoose.enabled is true" }}
+{{- end }}
+{{- if and .Values.goLoose.enabled (not .Values.goLoose.clientSecret) }}
+{{- fail "goLoose.clientSecret is required when goLoose.enabled is true" }}
+{{- end }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ $name }}
+  labels:
+    {{- include "go-tell.labels" . | nindent 4 }}
+type: Opaque
+data:
+  sso-token: {{ .Values.secrets.ssoToken | b64enc | quote }}
+  {{- if .Values.goLoose.enabled }}
+  go-loose-client-id: {{ .Values.goLoose.clientID | b64enc | quote }}
+  go-loose-client-secret: {{ .Values.goLoose.clientSecret | b64enc | quote }}
+  {{- end }}
\ No newline at end of file
diff --git a/deploy/helm/cms/templates/tests/test-connection.yaml b/deploy/helm/go-tell/templates/tests/test-connection.yaml
similarity index 61%
rename from deploy/helm/cms/templates/tests/test-connection.yaml
rename to deploy/helm/go-tell/templates/tests/test-connection.yaml
index 10c7b51..b2d324a 100644
--- a/deploy/helm/cms/templates/tests/test-connection.yaml
+++ b/deploy/helm/go-tell/templates/tests/test-connection.yaml
@@ -1,9 +1,9 @@
 apiVersion: v1
 kind: Pod
 metadata:
-  name: "{{ include "cms.fullname" . }}-test-connection"
+  name: "{{ include "go-tell.fullname" . }}-test-connection"
   labels:
-    {{- include "cms.labels" . | nindent 4 }}
+    {{- include "go-tell.labels" . | nindent 4 }}
   annotations:
     helm.sh/hook: test
     helm.sh/hook-delete-policy: before-hook-creation
@@ -17,4 +17,4 @@ spec:
         - wget
       args:
         - -qO-
-        - "http://{{ include "cms.fullname" . }}:{{ .Values.service.port }}/health"
+        - "http://{{ include "go-tell.fullname" . }}:{{ .Values.service.port }}/health"
diff --git a/deploy/helm/cms/values-development.yaml b/deploy/helm/go-tell/values-development.yaml
similarity index 87%
rename from deploy/helm/cms/values-development.yaml
rename to deploy/helm/go-tell/values-development.yaml
index 0e2fe0f..51eebc2 100644
--- a/deploy/helm/cms/values-development.yaml
+++ b/deploy/helm/go-tell/values-development.yaml
@@ -1,12 +1,14 @@
 image:
-  tag: latest
   pullPolicy: Always
 
 app:
-  environment: demo
+  profile: demo
   allowedOrigins: http://localhost:30010
   contentFile: ""
 
+goLoose:
+  enabled: false
+
 service:
   type: NodePort
   nodePort: 30010
@@ -23,4 +25,4 @@ resources:
     memory: 384Mi
 
 persistence:
-  enabled: false
+  enabled: false
\ No newline at end of file
diff --git a/deploy/helm/cms/values-production.yaml b/deploy/helm/go-tell/values-production.yaml
similarity index 59%
rename from deploy/helm/cms/values-production.yaml
rename to deploy/helm/go-tell/values-production.yaml
index 41baa39..6145d5a 100644
--- a/deploy/helm/cms/values-production.yaml
+++ b/deploy/helm/go-tell/values-production.yaml
@@ -1,18 +1,13 @@
 image:
-  tag: latest
   pullPolicy: IfNotPresent
 
 app:
-  environment: demo
-  allowedOrigins: https://cms.urpi.be
+  profile: production
+  allowedOrigins: https://tell.dev
   contentFile: /data/content.json
 
 service:
-  type: NodePort
-  nodePort: 31373
-
-ingress:
-  enabled: false
+  type: ClusterIP
 
 resources:
   requests:
@@ -24,4 +19,4 @@ resources:
 
 persistence:
   enabled: true
-  size: 5Gi
+  size: 5Gi
\ No newline at end of file
diff --git a/deploy/helm/go-tell/values.yaml b/deploy/helm/go-tell/values.yaml
new file mode 100644
index 0000000..ba9a6a8
--- /dev/null
+++ b/deploy/helm/go-tell/values.yaml
@@ -0,0 +1,116 @@
+nameOverride: ""
+fullnameOverride: ""
+
+# Public host of the CMS. There is one release, one host, and no tenant
+# routing: every visitor reaches the same content and the same editor.
+host: tell.dev
+
+replicaCount: 1
+
+image:
+  repository: batty1039.startdedicated.net:5000/go-tell
+  tag: latest
+  pullPolicy: IfNotPresent
+
+imagePullSecrets: []
+
+app:
+  # Demo keeps content in memory and offers the sudo terminal. Production serves
+  # the persisted file and requires an authenticated editor.
+  profile: production
+  allowedOrigins: https://tell.dev
+  contentFile: /data/content.json
+  postgresURL: ""
+  # Single-sign-on proxy identity, kept as a fallback when Go Loose is not
+  # configured. An empty header disables it.
+  ssoHeader: X-SSO-Token
+  ssoCookie: ""
+
+goLoose:
+  enabled: true
+  # Go Loose tenant that owns the login, the shared identity domain, and the
+  # public host of the CMS. Together they produce the base URL
+  # https://<tenant>.<authDomain> and the redirect URI
+  # https://<appDomain>/api/auth/callback that has to be registered in Go Loose.
+  tenant: tell
+  authDomain: auth.dev
+  appDomain: tell.dev
+  ca:
+    # Mount an internal CA bundle and point GO_LOOSE_CA_FILE at it when the
+    # identity domain is signed by a private authority.
+    existingSecret: ""
+    key: ca.crt
+    mountPath: /certs/local-ca.crt
+  clientID: ""
+  clientSecret: ""
+
+secrets:
+  # Shared secret the identity-aware proxy must present in the SSO header. Empty
+  # accepts any non-empty forwarded value.
+  ssoToken: ""
+
+service:
+  type: ClusterIP
+  port: 80
+  nodePort: null
+
+ingress:
+  enabled: true
+  className: nginx
+  annotations:
+    nginx.ingress.kubernetes.io/ssl-redirect: "true"
+  path: /
+  pathType: Prefix
+  tls:
+    enabled: true
+    # Use a certificate you already manage instead of the chart-issued one.
+    existingSecret: ""
+    # Defaults to <fullname>-tls when empty and certManager.enabled is true.
+    secretName: ""
+
+certManager:
+  # Requires cert-manager in the cluster: make cert-manager-install.
+  enabled: true
+  # Reuse an existing cert-manager issuer instead of creating a self-signed one.
+  issuerRef: {}
+  duration: 8760h
+  renewBefore: 720h
+  caSecretName: ""
+
+resources:
+  requests:
+    cpu: 100m
+    memory: 128Mi
+  limits:
+    cpu: 500m
+    memory: 512Mi
+
+podAnnotations: {}
+podLabels: {}
+
+podSecurityContext:
+  fsGroup: 10001
+  fsGroupChangePolicy: OnRootMismatch
+
+securityContext:
+  allowPrivilegeEscalation: false
+  capabilities:
+    drop:
+      - ALL
+  readOnlyRootFilesystem: true
+  runAsNonRoot: true
+  runAsUser: 10001
+
+strategy:
+  type: Recreate
+
+persistence:
+  enabled: true
+  size: 2Gi
+  accessModes:
+    - ReadWriteOnce
+  storageClass: ""
+
+nodeSelector: {}
+tolerations: []
+affinity: {}
\ No newline at end of file
diff --git a/deploy/nginx/README.md b/deploy/nginx/README.md
deleted file mode 100644
index 4754e2f..0000000
--- a/deploy/nginx/README.md
+++ /dev/null
@@ -1,51 +0,0 @@
-# Dedicated-server reverse proxy
-
-Production exposes the CMS application through Kubernetes NodePort `31373`.
-
-## DNS
-
-In one.com, create an `A` record for `cms.urpi.be` pointing to the dedicated
-server's public IPv4 address. Add an `AAAA` record only when the server and its
-firewall are configured for public IPv6. Wait for:
-
-```bash
-dig +short cms.urpi.be
-```
-
-to return the dedicated server address before requesting a certificate.
-
-## Nginx and Certbot
-
-The included virtual host assumes Nginx runs on the Kubernetes node and can
-reach the NodePort at `127.0.0.1:31373`.
-
-```bash
-sudo install -m 0644 deploy/nginx/cms.urpi.be.conf \
-  /etc/nginx/sites-available/cms.urpi.be.conf
-sudo ln -s /etc/nginx/sites-available/cms.urpi.be.conf \
-  /etc/nginx/sites-enabled/cms.urpi.be.conf
-sudo nginx -t
-sudo systemctl reload nginx
-sudo certbot --nginx -d cms.urpi.be
-sudo certbot renew --dry-run
-```
-
-Certbot adds the HTTPS listener, certificate paths, and HTTP-to-HTTPS redirect
-to this virtual host. Allow inbound TCP ports `80` and `443`. Do not expose
-NodePort `31373` to the public internet. If Nginx is not on a Kubernetes node, replace
-`127.0.0.1` in `proxy_pass` with a private cluster-node address and allow
-`31373` only from the Nginx server.
-
-## Deploy and verify
-
-Deploy the production profile:
-
-```bash
-make helm-deploy-production
-kubectl -n cms-production get pods
-kubectl -n cms-production get service cms
-curl --fail http://127.0.0.1:31373/health
-curl --fail https://cms.urpi.be/health
-```
-
-The `cms` service should show `80:31373/TCP`.
diff --git a/deploy/nginx/cms.urpi.be.conf b/deploy/nginx/cms.urpi.be.conf
deleted file mode 100644
index ea0edae..0000000
--- a/deploy/nginx/cms.urpi.be.conf
+++ /dev/null
@@ -1,21 +0,0 @@
-server {
-    listen 80;
-    listen [::]:80;
-    server_name cms.urpi.be;
-
-    client_max_body_size 10m;
-
-    location / {
-        proxy_pass http://127.0.0.1:31373;
-        proxy_http_version 1.1;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_set_header Connection "";
-        proxy_buffering off;
-        proxy_request_buffering off;
-        proxy_read_timeout 3600s;
-        proxy_send_timeout 3600s;
-    }
-}
diff --git a/deploy/rancher/local-path.yaml b/deploy/rancher/local-path.yaml
deleted file mode 100644
index 6cf033d..0000000
--- a/deploy/rancher/local-path.yaml
+++ /dev/null
@@ -1,188 +0,0 @@
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: local-path-storage
-
----
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: local-path-provisioner-service-account
-  namespace: local-path-storage
-
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: Role
-metadata:
-  name: local-path-provisioner-role
-  namespace: local-path-storage
-rules:
-  - apiGroups: [""]
-    resources: ["pods"]
-    verbs: ["get", "list", "watch", "create", "patch", "update", "delete"]
-
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
-metadata:
-  name: local-path-provisioner-role
-rules:
-  - apiGroups: [""]
-    resources: ["nodes", "persistentvolumeclaims", "configmaps", "pods", "pods/log"]
-    verbs: ["get", "list", "watch"]
-  - apiGroups: [""]
-    resources: ["persistentvolumes"]
-    verbs: ["get", "list", "watch", "create", "patch", "update", "delete"]
-  - apiGroups: [""]
-    resources: ["events"]
-    verbs: ["create", "patch"]
-  - apiGroups: ["storage.k8s.io"]
-    resources: ["storageclasses"]
-    verbs: ["get", "list", "watch"]
-
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: RoleBinding
-metadata:
-  name: local-path-provisioner-bind
-  namespace: local-path-storage
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: Role
-  name: local-path-provisioner-role
-subjects:
-  - kind: ServiceAccount
-    name: local-path-provisioner-service-account
-    namespace: local-path-storage
-
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
-metadata:
-  name: local-path-provisioner-bind
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: local-path-provisioner-role
-subjects:
-  - kind: ServiceAccount
-    name: local-path-provisioner-service-account
-    namespace: local-path-storage
-
----
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: local-path-provisioner
-  namespace: local-path-storage
-spec:
-  replicas: 1
-  selector:
-    matchLabels:
-      app: local-path-provisioner
-  template:
-    metadata:
-      labels:
-        app: local-path-provisioner
-    spec:
-      serviceAccountName: local-path-provisioner-service-account
-      containers:
-        - name: local-path-provisioner
-          image: docker.io/rancher/local-path-provisioner:v0.0.37
-          imagePullPolicy: IfNotPresent
-          command:
-            - local-path-provisioner
-            - --debug
-            - start
-            - --config
-            - /etc/config/config.json
-          ports:
-            - name: health
-              containerPort: 8080
-              protocol: TCP
-          startupProbe:
-            httpGet:
-              path: /health
-              port: health
-            initialDelaySeconds: 5
-            periodSeconds: 5
-            failureThreshold: 12
-          livenessProbe:
-            httpGet:
-              path: /health
-              port: health
-            initialDelaySeconds: 10
-            periodSeconds: 10
-          readinessProbe:
-            httpGet:
-              path: /ready
-              port: health
-            initialDelaySeconds: 5
-            periodSeconds: 5
-          volumeMounts:
-            - name: config-volume
-              mountPath: /etc/config/
-          env:
-            - name: POD_NAMESPACE
-              valueFrom:
-                fieldRef:
-                  fieldPath: metadata.namespace
-            - name: CONFIG_MOUNT_PATH
-              value: /etc/config/
-            - name: HEALTH_PORT
-              value: "8080"
-      volumes:
-        - name: config-volume
-          configMap:
-            name: local-path-config
-
----
-apiVersion: storage.k8s.io/v1
-kind: StorageClass
-metadata:
-  name: local-path
-  annotations:
-    storageclass.kubernetes.io/is-default-class: "true"
-provisioner: rancher.io/local-path
-volumeBindingMode: WaitForFirstConsumer
-reclaimPolicy: Retain
-
----
-kind: ConfigMap
-apiVersion: v1
-metadata:
-  name: local-path-config
-  namespace: local-path-storage
-data:
-  config.json: |-
-    {
-            "nodePathMap":[
-            {
-                    "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
-                    "paths":["/var/lib/rancher/k3s/storage"]
-            }
-            ]
-    }
-  setup: |-
-    #!/bin/sh
-    set -eu
-    mkdir -m 0777 -p "$VOL_DIR"
-  teardown: |-
-    #!/bin/sh
-    set -eu
-    rm -rf "$VOL_DIR"
-  helperPod.yaml: |-
-    apiVersion: v1
-    kind: Pod
-    metadata:
-      name: helper-pod
-    spec:
-      priorityClassName: system-node-critical
-      tolerations:
-        - key: node.kubernetes.io/disk-pressure
-          operator: Exists
-          effect: NoSchedule
-      containers:
-      - name: helper-pod
-        image: docker.io/library/busybox
-        imagePullPolicy: IfNotPresent
diff --git a/deploy/rancher/registries.yaml b/deploy/rancher/registries.yaml
deleted file mode 100644
index da1e7e4..0000000
--- a/deploy/rancher/registries.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-mirrors:
-  "batty1039.startdedicated.net:5000":
-    endpoint:
-      - "http://batty1039.startdedicated.net:5000"
-
-configs:
-  "batty1039.startdedicated.net:5000":
-    tls:
-      insecure_skip_verify: true
diff --git a/go.mod b/go.mod
index 2f04374..b74740b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,13 @@
-module github.com/danyel/go-cms
+module github.com/danyel/go-tell
 
 go 1.27.1
 
 require (
+	github.com/danyel/go-loose v0.0.0-20261002224534-b011701522b1
 	github.com/go-chi/chi/v5 v5.2.3
 	github.com/golang-jwt/jwt/v5 v5.3.0
 	github.com/google/uuid v1.6.0
-	github.com/jackc/pgx/v5 v5.9.2
+	github.com/jackc/pgx/v5 v5.11.0
 	github.com/ledongthuc/pdf v0.0.0-20260907135840-6c8c28e0e8a0
 	github.com/pressly/goose/v3 v3.26.0
 	github.com/rabbitmq/amqp091-go v1.15.0
@@ -72,8 +73,8 @@ require (
 	go.opentelemetry.io/otel/metric v1.44.0 // indirect
 	go.opentelemetry.io/otel/trace v1.44.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/sync v0.22.0 // indirect
+	golang.org/x/sync v0.23.0 // indirect
 	golang.org/x/sys v0.47.0 // indirect
-	golang.org/x/text v0.40.0 // indirect
+	golang.org/x/text v0.42.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index db3a4bc..4d575ca 100644
--- a/go.sum
+++ b/go.sum
@@ -8,6 +8,8 @@ github.com/containerd/errdefs/pkg v0.3.0/go.mod h1:NJw6s9HwNuRhnjJhM7pylWwMyAkmC
 github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
 github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7npe7dG/wG+uFPw=
 github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
+github.com/danyel/go-loose v0.0.0-20261002224534-b011701522b1 h1:hGywTGxVZoxwpSovWdzPHU6oRcQvbCwOJXaBpnynXeM=
+github.com/danyel/go-loose v0.0.0-20261002224534-b011701522b1/go.mod h1:qOO4ay0c2MWiiLwz7WHCXCqDwxxA3sKTKKUnqbFgsOk=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
@@ -26,6 +28,7 @@ github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
 github.com/jackc/pgx/v5 v5.9.2/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
+github.com/jackc/pgx/v5 v5.11.0/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
 github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
@@ -69,12 +72,14 @@ go.opentelemetry.io/otel/trace v1.44.0/go.mod h1:oLl1jrMQAVo6v3GAggN+1VH9VIz9iUS
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 golang.org/x/crypto v0.54.0/go.mod h1:KWL8ny2AZdGR2cWmzeHrp2azQPGogOv+HeQaVEXC2dk=
 golang.org/x/sync v0.22.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/sync v0.23.0/go.mod h1:sUUOizhqBxiL6pEWpqNLUiaJn1ShEbZ6BBqskPbjZm0=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/text v0.40.0/go.mod h1:hpnzDAfGV753zIKo+wk3u1bVKCGPbrnF7+7LBF/UHVY=
+golang.org/x/text v0.42.0/go.mod h1:ojzP1Z+2QtioaF8DTtO8K5q7JWVVYwZKenzujK0Zd0E=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/internal/config/config.go b/internal/config/config.go
index 83835ad..d2f87ed 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -1,6 +1,7 @@
-// Package config carries the runtime settings for the demo CMS. There is no
+// Package config carries the runtime settings for the CMS. There is no
 // database to configure: content is seeded in memory and optionally mirrored to
-// a single JSON file.
+// a single JSON file. Editing rights come from Go Loose, from the single-sign-on
+// proxy, or from the demo profile, depending on what is configured.
 package config
 
 import "os"
@@ -8,8 +9,26 @@ import "os"
 type Config struct {
 	HTTPAddr, Profile, ContentFile, PostgresURL    string
 	AllowedOrigins, SSOHeader, SSOToken, SSOCookie string
+	GoLoose                                        GoLooseConfig
 }
 
+// GoLooseConfig describes the Go Loose hosted-login integration. Go Tell is
+// served from a single host, so one client application covers every request:
+// Tenant picks the Go Loose tenant that owns the login, AuthDomain is the
+// identity domain shared by all tenants, and AppDomain is the public host of
+// the CMS, which also determines the registered redirect URI.
+type GoLooseConfig struct {
+	Tenant       string
+	AuthDomain   string
+	AppDomain    string
+	CAFile       string
+	ClientID     string
+	ClientSecret string
+}
+
+// Enabled reports whether Go Loose client credentials are configured.
+func (g GoLooseConfig) Enabled() bool { return g.ClientID != "" && g.ClientSecret != "" }
+
 func Load() Config {
 	return Config{
 		HTTPAddr:       get("CMS_HTTP_ADDR", ":8080"),
@@ -20,6 +39,14 @@ func Load() Config {
 		SSOHeader:      get("CMS_SSO_HEADER", "X-SSO-Token"),
 		SSOToken:       get("CMS_SSO_TOKEN", ""),
 		SSOCookie:      get("CMS_SSO_COOKIE", ""),
+		GoLoose: GoLooseConfig{
+			Tenant:       get("GO_LOOSE_TENANT", "tell"),
+			AuthDomain:   get("GO_LOOSE_AUTH_DOMAIN", "auth.dev"),
+			AppDomain:    get("GO_LOOSE_APP_DOMAIN", "tell.dev"),
+			CAFile:       os.Getenv("GO_LOOSE_CA_FILE"),
+			ClientID:     os.Getenv("GO_LOOSE_CLIENT_ID"),
+			ClientSecret: os.Getenv("GO_LOOSE_CLIENT_SECRET"),
+		},
 	}
 }
 
diff --git a/internal/golooseauth/browser.go b/internal/golooseauth/browser.go
new file mode 100644
index 0000000..54319af
--- /dev/null
+++ b/internal/golooseauth/browser.go
@@ -0,0 +1,142 @@
+// Package golooseauth builds the Go Loose hosted-login client used by the CMS.
+package golooseauth
+
+import (
+	"crypto/tls"
+	"crypto/x509"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	goloose "github.com/danyel/go-loose/client"
+
+	"github.com/danyel/go-tell/internal/config"
+)
+
+const (
+	// SessionCookie holds the Go Loose session token after a successful login.
+	SessionCookie = "go_loose_user_session"
+	// LoginPath starts the browser login flow.
+	LoginPath = "/api/auth/login"
+	// CallbackPath is the redirect URI registered with Go Loose.
+	CallbackPath = "/api/auth/callback"
+	// LogoutPath ends the browser session, locally and at the identity provider.
+	LogoutPath = "/api/auth/logout"
+)
+
+// Auth is the Go Loose browser client plus the session lookup the API needs.
+// The login, callback, and logout handlers come from the Go Loose client; this
+// type only adds a non-redirecting way to turn a request into a user, because
+// the client middleware answers anonymous requests with a redirect and the CMS
+// has to answer its own API with a status code.
+type Auth struct {
+	*goloose.BrowserAuth
+	baseURL    string
+	httpClient *http.Client
+}
+
+// New returns the browser client for the configured Go Loose application, or a
+// nil client when no credentials are set, which leaves the CMS with its other
+// identity sources. ClientID and ClientSecret are the values Go Loose shows once
+// when a client application is configured.
+func New(cfg config.GoLooseConfig) (*Auth, error) {
+	if !cfg.Enabled() {
+		return nil, nil
+	}
+	tenant := domain(cfg.Tenant)
+	if tenant == "" || strings.Contains(tenant, ".") {
+		return nil, fmt.Errorf("GO_LOOSE_TENANT must be a single lowercase tenant slug")
+	}
+	authDomain := domain(cfg.AuthDomain)
+	if authDomain == "" {
+		return nil, fmt.Errorf("GO_LOOSE_AUTH_DOMAIN is required when client credentials are configured")
+	}
+	appDomain := domain(cfg.AppDomain)
+	if appDomain == "" {
+		return nil, fmt.Errorf("GO_LOOSE_APP_DOMAIN is required when client credentials are configured")
+	}
+	httpClient, err := client(cfg.CAFile)
+	if err != nil {
+		return nil, err
+	}
+	baseURL := "https://" + tenant + "." + authDomain
+	browser, err := goloose.NewBrowserAuth(goloose.BrowserAuthConfig{
+		BaseURL:        baseURL,
+		ClientID:       cfg.ClientID,
+		ClientSecret:   cfg.ClientSecret,
+		RedirectURL:    "https://" + appDomain + CallbackPath,
+		AfterLoginURL:  "/",
+		AfterLogoutURL: "/",
+		LoginPath:      LoginPath,
+		CookieName:     SessionCookie,
+		CookieSecure:   true,
+		HTTPClient:     httpClient,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return &Auth{BrowserAuth: browser, baseURL: baseURL, httpClient: httpClient}, nil
+}
+
+// Tenant reports the Go Loose tenant that owns the login.
+func (a *Auth) Tenant() string { return a.baseURL }
+
+// SessionUser resolves the Go Loose session cookie of a request into a user.
+// Requests without a cookie, with a rejected session, or without a reachable
+// identity provider are simply not signed in.
+func (a *Auth) SessionUser(r *http.Request) (goloose.User, bool) {
+	if a == nil {
+		return goloose.User{}, false
+	}
+	cookie, err := r.Cookie(SessionCookie)
+	if err != nil || cookie.Value == "" {
+		return goloose.User{}, false
+	}
+	request, err := http.NewRequestWithContext(r.Context(), http.MethodGet, a.baseURL+"/connect/userinfo", nil)
+	if err != nil {
+		return goloose.User{}, false
+	}
+	request.Header.Set("Authorization", "Bearer "+cookie.Value)
+	response, err := a.httpClient.Do(request)
+	if err != nil {
+		return goloose.User{}, false
+	}
+	defer response.Body.Close()
+	var user goloose.User
+	if response.StatusCode != http.StatusOK ||
+		json.NewDecoder(io.LimitReader(response.Body, 1<<20)).Decode(&user) != nil {
+		return goloose.User{}, false
+	}
+	return user, true
+}
+
+// domain normalizes a configured host or tenant slug.
+func domain(value string) string {
+	return strings.Trim(strings.ToLower(strings.TrimSpace(value)), ".")
+}
+
+// client returns the HTTP client used to talk to Go Loose, trusting the extra
+// certificate authorities in caFile when one is configured. It is needed while
+// the identity domain is served by an internal certificate authority.
+func client(caFile string) (*http.Client, error) {
+	transport := http.DefaultTransport.(*http.Transport).Clone()
+	if caFile != "" {
+		pem, err := os.ReadFile(caFile)
+		if err != nil {
+			return nil, fmt.Errorf("read Go Loose CA: %w", err)
+		}
+		pool, err := x509.SystemCertPool()
+		if err != nil || pool == nil {
+			pool = x509.NewCertPool()
+		}
+		if !pool.AppendCertsFromPEM(pem) {
+			return nil, fmt.Errorf("parse Go Loose CA %s", caFile)
+		}
+		transport.TLSClientConfig = &tls.Config{RootCAs: pool, MinVersion: tls.VersionTLS12}
+	}
+	return &http.Client{Timeout: 5 * time.Second, Transport: transport}, nil
+}
diff --git a/internal/golooseauth/browser_test.go b/internal/golooseauth/browser_test.go
new file mode 100644
index 0000000..07b357a
--- /dev/null
+++ b/internal/golooseauth/browser_test.go
@@ -0,0 +1,150 @@
+package golooseauth
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	goloose "github.com/danyel/go-loose/client"
+
+	"github.com/danyel/go-tell/internal/config"
+)
+
+func TestNewWithoutCredentialsIsDisabled(t *testing.T) {
+	auth, err := New(config.GoLooseConfig{Tenant: "tell", AuthDomain: "auth.dev", AppDomain: "tell.dev"})
+	if err != nil || auth != nil {
+		t.Fatalf("New() = %#v, %v; want a disabled client", auth, err)
+	}
+	auth, err = New(config.GoLooseConfig{ClientID: "client"})
+	if err != nil || auth != nil {
+		t.Fatalf("New() with a half-configured client = %#v, %v; want a disabled client", auth, err)
+	}
+}
+
+func TestNewRejectsInvalidDomains(t *testing.T) {
+	cases := map[string]config.GoLooseConfig{
+		"tenant with a dot": {Tenant: "tell.dev", AuthDomain: "auth.dev", AppDomain: "tell.dev", ClientID: "c", ClientSecret: "s"},
+		"empty tenant":      {Tenant: " ", AuthDomain: "auth.dev", AppDomain: "tell.dev", ClientID: "c", ClientSecret: "s"},
+		"empty auth domain": {Tenant: "tell", ClientID: "c", ClientSecret: "s"},
+		"empty app domain":  {Tenant: "tell", AuthDomain: "auth.dev", ClientID: "c", ClientSecret: "s"},
+	}
+	for name, cfg := range cases {
+		t.Run(name, func(t *testing.T) {
+			if _, err := New(cfg); err == nil {
+				t.Fatal("New() error = nil, want a configuration error")
+			}
+		})
+	}
+}
+
+func TestNewBuildsSingleHostBrowserClient(t *testing.T) {
+	auth, err := New(config.GoLooseConfig{
+		Tenant: " Tell ", AuthDomain: ".auth.dev.", AppDomain: "Tell.Dev",
+		ClientID: "client", ClientSecret: "secret",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if auth.Tenant() != "https://tell.auth.dev" {
+		t.Fatalf("Tenant() = %q", auth.Tenant())
+	}
+
+	recorder := httptest.NewRecorder()
+	auth.LoginHandler(recorder, httptest.NewRequest(http.MethodGet, LoginPath, nil))
+	if recorder.Code != http.StatusFound {
+		t.Fatalf("login status = %d, body = %s", recorder.Code, recorder.Body.String())
+	}
+	target, err := url.Parse(recorder.Header().Get("Location"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if target.Scheme+"://"+target.Host != "https://tell.auth.dev" || target.Path != "/connect/authorize" {
+		t.Fatalf("unexpected login target: %s", target)
+	}
+	if target.Query().Get("client_id") != "client" ||
+		target.Query().Get("redirect_uri") != "https://tell.dev"+CallbackPath ||
+		target.Query().Get("state") == "" {
+		t.Fatalf("unexpected login query: %s", target.RawQuery)
+	}
+	cookies := recorder.Result().Cookies()
+	if len(cookies) != 1 || cookies[0].Name == SessionCookie || !cookies[0].HttpOnly {
+		t.Fatalf("expected an HTTP-only state cookie scoped to the callback, got %#v", cookies)
+	}
+}
+
+func TestSessionUserResolvesCookie(t *testing.T) {
+	identity := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Header.Get("Authorization") != "Bearer session-token" {
+			http.Error(w, "missing bearer token", http.StatusUnauthorized)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		w.Write([]byte(`{"id":"user-1","email":"owner@tell.dev","display_name":"Owner","tenant_slug":"tell"}`))
+	}))
+	defer identity.Close()
+
+	auth := testAuth(t, identity)
+	request := httptest.NewRequest(http.MethodPut, "https://tell.dev/api/content/post", nil)
+	if _, ok := auth.SessionUser(request); ok {
+		t.Fatal("SessionUser() without a cookie = true, want false")
+	}
+	if _, ok := auth.SessionUser(httptest.NewRequest(http.MethodPut, "https://tell.dev/api/content/post", nil)); ok {
+		t.Fatal("SessionUser() without a cookie = true, want false")
+	}
+}
+
+func TestSessionUserRejectsRejectedSession(t *testing.T) {
+	identity := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		http.Error(w, "no such session", http.StatusUnauthorized)
+	}))
+	defer identity.Close()
+
+	auth := testAuth(t, identity)
+	request := httptest.NewRequest(http.MethodPut, "https://tell.dev/api/content/post", nil)
+	request.AddCookie(&http.Cookie{Name: SessionCookie, Value: "expired"})
+	if user, ok := auth.SessionUser(request); ok {
+		t.Fatalf("SessionUser() with a rejected session = %#v, want no user", user)
+	}
+}
+
+func TestSessionUserReturnsIdentity(t *testing.T) {
+	identity := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.Write([]byte(`{"id":"user-1","email":"owner@tell.dev","display_name":"Owner","tenant_slug":"tell"}`))
+	}))
+	defer identity.Close()
+
+	auth := testAuth(t, identity)
+	request := httptest.NewRequest(http.MethodPut, "https://tell.dev/api/content/post", nil)
+	request.AddCookie(&http.Cookie{Name: SessionCookie, Value: "session-token"})
+	user, ok := auth.SessionUser(request)
+	if !ok {
+		t.Fatal("SessionUser() = false, want the session user")
+	}
+	if user.Email != "owner@tell.dev" || user.DisplayName != "Owner" || user.TenantSlug != "tell" {
+		t.Fatalf("unexpected user: %#v", user)
+	}
+}
+
+func TestNilAuthHasNoSession(t *testing.T) {
+	var auth *Auth
+	if user, ok := auth.SessionUser(httptest.NewRequest(http.MethodGet, "/", nil)); ok {
+		t.Fatalf("SessionUser() on a disabled client = %#v, want no user", user)
+	}
+}
+
+// testAuth wires an Auth to a local identity server, which is what the client
+// would talk to once the base URL points somewhere reachable in a test.
+func testAuth(t *testing.T, identity *httptest.Server) *Auth {
+	t.Helper()
+	browser, err := goloose.NewBrowserAuth(goloose.BrowserAuthConfig{
+		BaseURL: identity.URL, ClientID: "client", ClientSecret: "secret",
+		RedirectURL: "https://tell.dev" + CallbackPath, LoginPath: LoginPath,
+		CookieName: SessionCookie, HTTPClient: identity.Client(),
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &Auth{BrowserAuth: browser, baseURL: identity.URL, httpClient: identity.Client()}
+}
diff --git a/internal/security/token_test.go b/internal/security/token_test.go
index eaedb61..5ce6bc7 100644
--- a/internal/security/token_test.go
+++ b/internal/security/token_test.go
@@ -33,9 +33,9 @@ func TestSSOTokenVerifierChecksExpectedToken(t *testing.T) {
 }
 
 func TestSSOTokenVerifierCookieFallback(t *testing.T) {
-	v := NewSSOTokenVerifier("X-SSO-Token", "", "cms_session")
+	v := NewSSOTokenVerifier("X-SSO-Token", "", "go_tell_session")
 	r := httptest.NewRequest(http.MethodGet, "/", nil)
-	r.AddCookie(&http.Cookie{Name: "cms_session", Value: "cookie-token"})
+	r.AddCookie(&http.Cookie{Name: "go_tell_session", Value: "cookie-token"})
 	if !v.Authenticated(r) {
 		t.Fatal("cookie token must be authenticated")
 	}
diff --git a/internal/web/handlers.go b/internal/web/handlers.go
index 42afa6f..fa0fd66 100644
--- a/internal/web/handlers.go
+++ b/internal/web/handlers.go
@@ -8,22 +8,27 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/danyel/go-cms/internal/security"
-	"github.com/danyel/go-cms/internal/service"
+	goloose "github.com/danyel/go-loose/client"
+
+	"github.com/danyel/go-tell/internal/golooseauth"
+	"github.com/danyel/go-tell/internal/security"
+	"github.com/danyel/go-tell/internal/service"
 )
 
 // Handler serves the CMS API and the embedded React app from one binary.
-// Reading content is anonymous; every mutation requires the identity asserted by
-// the upstream SSO proxy.
+// Reading content is anonymous; every mutation requires an authenticated
+// editor: a Go Loose browser session, the identity asserted by the upstream
+// SSO proxy, or a demo user.
 type Handler struct {
 	content service.IContentService
 	assets  fs.FS
 	sso     security.ITokenVerifier
+	browser *golooseauth.Auth
 	demo    *service.DemoAuth
 }
 
-func NewHandler(content service.IContentService, assets fs.FS, sso security.ITokenVerifier, demo ...*service.DemoAuth) *Handler {
-	h := &Handler{content: content, assets: assets, sso: sso}
+func NewHandler(content service.IContentService, assets fs.FS, sso security.ITokenVerifier, browser *golooseauth.Auth, demo ...*service.DemoAuth) *Handler {
+	h := &Handler{content: content, assets: assets, sso: sso, browser: browser}
 	if len(demo) > 0 {
 		h.demo = demo[0]
 	}
@@ -35,6 +40,9 @@ func (h *Handler) Routes(origins string) http.Handler {
 	mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
 		jsonWrite(w, http.StatusOK, map[string]string{"status": "ok"})
 	})
+	mux.HandleFunc(golooseauth.LoginPath, h.login)
+	mux.HandleFunc(golooseauth.CallbackPath, h.callback)
+	mux.HandleFunc(golooseauth.LogoutPath, h.logout)
 	mux.HandleFunc("/api/auth/session", h.session)
 	mux.HandleFunc("/api/auth/sudo", h.sudo)
 	mux.HandleFunc("/api/auth/users", h.users)
@@ -48,9 +56,51 @@ func (h *Handler) Routes(origins string) http.Handler {
 	return cors(mux, origins, h.sso.HeaderName())
 }
 
+// session reports who the caller is. When Go Loose is configured the response
+// also carries the login and logout endpoints so the UI can offer the browser
+// login instead of a proxy redirect.
 func (h *Handler) session(w http.ResponseWriter, r *http.Request) {
 	username, authenticated := h.identity(r)
-	jsonWrite(w, http.StatusOK, map[string]any{"authenticated": authenticated, "canEdit": authenticated, "username": username})
+	response := map[string]any{"authenticated": authenticated, "canEdit": authenticated, "username": username}
+	if user, ok := h.browserUser(r); ok {
+		response["email"] = user.Email
+		response["displayName"] = user.DisplayName
+	}
+	if h.browser != nil {
+		response["loginUrl"] = golooseauth.LoginPath
+		response["logoutUrl"] = golooseauth.LogoutPath
+	}
+	jsonWrite(w, http.StatusOK, response)
+}
+
+func (h *Handler) login(w http.ResponseWriter, r *http.Request) {
+	if h.browser == nil {
+		writeAuthUnavailable(w)
+		return
+	}
+	h.browser.LoginHandler(w, r)
+}
+
+func (h *Handler) callback(w http.ResponseWriter, r *http.Request) {
+	if h.browser == nil {
+		writeAuthUnavailable(w)
+		return
+	}
+	h.browser.CallbackHandler(w, r)
+}
+
+func (h *Handler) logout(w http.ResponseWriter, r *http.Request) {
+	if h.browser == nil {
+		writeAuthUnavailable(w)
+		return
+	}
+	h.browser.LogoutHandler(w, r)
+}
+
+func writeAuthUnavailable(w http.ResponseWriter) {
+	jsonWrite(w, http.StatusNotFound, map[string]string{
+		"error": "Go Loose login is not configured: set GO_LOOSE_CLIENT_ID and GO_LOOSE_CLIENT_SECRET, then restart the server",
+	})
 }
 
 func (h *Handler) protected(w http.ResponseWriter, r *http.Request) {
@@ -182,6 +232,9 @@ func (h *Handler) contentDetail(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+// identity resolves the editor behind a request. The demo profile wins, then
+// the SSO proxy, then the Go Loose browser session: the session is checked last
+// because it costs a call to the identity provider.
 func (h *Handler) identity(r *http.Request) (string, bool) {
 	if h.demo != nil {
 		token := strings.TrimSpace(strings.TrimPrefix(r.Header.Get("Authorization"), "Bearer "))
@@ -192,9 +245,31 @@ func (h *Handler) identity(r *http.Request) (string, bool) {
 	if h.sso.Authenticated(r) {
 		return "sso-owner", true
 	}
+	if user, ok := h.browserUser(r); ok {
+		return editorName(user), true
+	}
 	return "", false
 }
 
+// browserUser returns the Go Loose user carried by the request session, if any.
+func (h *Handler) browserUser(r *http.Request) (goloose.User, bool) {
+	if h.browser == nil {
+		return goloose.User{}, false
+	}
+	user, ok := h.browser.SessionUser(r)
+	if !ok {
+		return goloose.User{}, false
+	}
+	return user, true
+}
+
+func editorName(user goloose.User) string {
+	if name := strings.TrimSpace(user.DisplayName); name != "" {
+		return name
+	}
+	return user.Email
+}
+
 // singlePageApp serves the embedded build and falls back to index.html so the
 // client-side router owns every non-API path.
 func (h *Handler) singlePageApp(w http.ResponseWriter, r *http.Request) {
diff --git a/internal/web/handlers_test.go b/internal/web/handlers_test.go
index 500d68b..b48f9c9 100644
--- a/internal/web/handlers_test.go
+++ b/internal/web/handlers_test.go
@@ -8,8 +8,10 @@ import (
 	"testing"
 	"testing/fstest"
 
-	"github.com/danyel/go-cms/internal/security"
-	"github.com/danyel/go-cms/internal/service"
+	"github.com/danyel/go-tell/internal/config"
+	"github.com/danyel/go-tell/internal/golooseauth"
+	"github.com/danyel/go-tell/internal/security"
+	"github.com/danyel/go-tell/internal/service"
 )
 
 type fakeContent struct{ updated bool }
@@ -31,12 +33,16 @@ func (f *fakeContent) Update(_ context.Context, c service.Content) (service.Cont
 	return c, nil
 }
 
-func newTestRoutes(content *fakeContent) http.Handler {
+func newTestRoutes(content *fakeContent, browser ...*golooseauth.Auth) http.Handler {
 	assets := fstest.MapFS{
 		"index.html":      &fstest.MapFile{Data: []byte("<!doctype html><div id=\"root\"></div>")},
-		"assets/index.js": &fstest.MapFile{Data: []byte("console.log('cms')")},
+		"assets/index.js": &fstest.MapFile{Data: []byte("console.log('go-tell')")},
 	}
-	return NewHandler(content, assets, security.NewSSOTokenVerifier("X-SSO-Token", "", "")).Routes("http://localhost:5173")
+	var auth *golooseauth.Auth
+	if len(browser) > 0 {
+		auth = browser[0]
+	}
+	return NewHandler(content, assets, security.NewSSOTokenVerifier("X-SSO-Token", "", ""), auth).Routes("http://localhost:5173")
 }
 
 func TestAnonymousCanReadButNotEdit(t *testing.T) {
@@ -89,6 +95,68 @@ func TestProxyIdentityCanEdit(t *testing.T) {
 	}
 }
 
+func TestGoLooseLoginRedirectsToTheIdentityProvider(t *testing.T) {
+	routes := newTestRoutes(&fakeContent{}, testGoLooseAuth(t))
+
+	response := httptest.NewRecorder()
+	routes.ServeHTTP(response, httptest.NewRequest(http.MethodGet, golooseauth.LoginPath, nil))
+	if response.Code != http.StatusFound {
+		t.Fatalf("login status = %d, body = %s", response.Code, response.Body.String())
+	}
+	location := response.Header().Get("Location")
+	if !strings.HasPrefix(location, "https://tell.auth.dev/connect/authorize?") ||
+		!strings.Contains(location, "redirect_uri=https%3A%2F%2Ftell.dev%2Fapi%2Fauth%2Fcallback") {
+		t.Fatalf("unexpected login redirect: %s", location)
+	}
+}
+
+func TestSessionAdvertisesGoLooseEndpoints(t *testing.T) {
+	routes := newTestRoutes(&fakeContent{}, testGoLooseAuth(t))
+
+	response := httptest.NewRecorder()
+	routes.ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/api/auth/session", nil))
+	if response.Code != http.StatusOK {
+		t.Fatalf("session status = %d", response.Code)
+	}
+	body := response.Body.String()
+	for _, want := range []string{`"authenticated":false`, `"loginUrl":"/api/auth/login"`, `"logoutUrl":"/api/auth/logout"`} {
+		if !strings.Contains(body, want) {
+			t.Fatalf("session = %s, want %s", body, want)
+		}
+	}
+}
+
+func TestSessionWithoutGoLooseHasNoLoginURL(t *testing.T) {
+	response := httptest.NewRecorder()
+	newTestRoutes(&fakeContent{}).ServeHTTP(response, httptest.NewRequest(http.MethodGet, "/api/auth/session", nil))
+	if strings.Contains(response.Body.String(), "loginUrl") {
+		t.Fatalf("session = %s, want no login endpoint", response.Body.String())
+	}
+}
+
+func TestGoLooseRoutesAreNotFoundWhenUnconfigured(t *testing.T) {
+	routes := newTestRoutes(&fakeContent{})
+	for _, path := range []string{golooseauth.LoginPath, golooseauth.CallbackPath, golooseauth.LogoutPath} {
+		response := httptest.NewRecorder()
+		routes.ServeHTTP(response, httptest.NewRequest(http.MethodGet, path, nil))
+		if response.Code != http.StatusNotFound || !strings.Contains(response.Body.String(), "GO_LOOSE_CLIENT_ID") {
+			t.Fatalf("%s without Go Loose = %d %s", path, response.Code, response.Body.String())
+		}
+	}
+}
+
+func testGoLooseAuth(t *testing.T) *golooseauth.Auth {
+	t.Helper()
+	auth, err := golooseauth.New(config.GoLooseConfig{
+		Tenant: "tell", AuthDomain: "auth.dev", AppDomain: "tell.dev",
+		ClientID: "glc_tell", ClientSecret: "secret",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	return auth
+}
+
 func TestServesEmbeddedAppForClientRoutes(t *testing.T) {
 	routes := newTestRoutes(&fakeContent{})
 
diff --git a/ui/app/package.json b/ui/app/package.json
index 8765b58..067a95b 100644
--- a/ui/app/package.json
+++ b/ui/app/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "cms-ui",
+  "name": "go-tell-ui",
   "private": true,
   "version": "0.1.0",
   "type": "module",
diff --git a/ui/app/src/api.ts b/ui/app/src/api.ts
index 6b1bedd..0e79f65 100644
--- a/ui/app/src/api.ts
+++ b/ui/app/src/api.ts
@@ -54,7 +54,7 @@ export async function requestSession(): Promise<SessionResponse | null> {
 }
 
 function demoAuthHeaders(): Record<string, string> {
-  const token = window.sessionStorage.getItem('cms-token')
+  const token = window.sessionStorage.getItem('go-tell-token')
   return token ? {Authorization: `Bearer ${token}`} : {}
 }
 
@@ -99,7 +99,7 @@ async function contentRequest<T>(path = '', init?: RequestInit): Promise<T> {
     headers: { Accept: 'application/json', ...demoAuthHeaders(), ...(init?.body ? { 'Content-Type': 'application/json' } : {}), ...init?.headers },
   })
   if (!response.ok) {
-    if (response.status === 401) throw new Error('Your SSO session is required to edit content.')
+    if (response.status === 401) throw new Error('You have to sign in to edit content.')
     throw new Error((await response.text()) || 'Unable to load content.')
   }
   return (await response.json()) as T
diff --git a/ui/app/src/auth.tsx b/ui/app/src/auth.tsx
index 0bab508..bde60a1 100644
--- a/ui/app/src/auth.tsx
+++ b/ui/app/src/auth.tsx
@@ -1,9 +1,10 @@
 import { createContext, useCallback, useContext, useEffect, useMemo, useState, type ReactNode } from 'react'
-import { apiConfig, requestSession, signInWithGoogle, sudoLogin } from './api'
+import { apiConfig, apiUrl, requestSession, signInWithGoogle, sudoLogin } from './api'
 
-// There is no sign-in or sign-out: the upstream SSO proxy decides whether the
-// current request carries the owner's identity. Signing in just sends the
-// browser to the configured Google/IdP URL.
+// Signing in is either the Go Loose browser login or a redirect to the
+// identity-aware proxy, depending on what the API advertises: /api/auth/session
+// returns loginUrl and logoutUrl when Go Loose is configured. The demo profile
+// keeps using its own token in sessionStorage.
 type AuthState = {
   loading: boolean
   authenticated: boolean
@@ -12,6 +13,7 @@ type AuthState = {
   error: string | null
   refresh: () => Promise<void>
   canSignIn: boolean
+  canSignOut: boolean
   signIn: () => void
   sudo: (username: string, password: string) => Promise<void>
   signOut: () => void
@@ -23,6 +25,8 @@ export function AuthProvider({ children }: { children: ReactNode }) {
   const [authenticated, setAuthenticated] = useState(false)
   const [canEdit, setCanEdit] = useState(false)
   const [username, setUsername] = useState<string | undefined>()
+  const [loginUrl, setLoginUrl] = useState('')
+  const [logoutUrl, setLogoutUrl] = useState('')
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState<string | null>(null)
 
@@ -33,10 +37,12 @@ export function AuthProvider({ children }: { children: ReactNode }) {
       setAuthenticated(session?.authenticated === true)
       setCanEdit(session?.canEdit === true)
       setUsername(session?.username)
+      setLoginUrl(session?.loginUrl ?? '')
+      setLogoutUrl(session?.logoutUrl ?? '')
     } catch (err) {
       setAuthenticated(false)
       setCanEdit(false)
-      setError(err instanceof Error ? err.message : 'Unable to check your SSO session.')
+      setError(err instanceof Error ? err.message : 'Unable to check your session.')
     } finally {
       setLoading(false)
     }
@@ -44,25 +50,36 @@ export function AuthProvider({ children }: { children: ReactNode }) {
 
   useEffect(() => { void refresh() }, [refresh])
 
-  const signIn = useCallback(() => { signInWithGoogle() }, [])
+  const signIn = useCallback(() => {
+    if (loginUrl) {
+      window.location.assign(apiUrl(loginUrl))
+      return
+    }
+    signInWithGoogle()
+  }, [loginUrl])
   const sudo = useCallback(async (username: string, password: string) => {
     const result = await sudoLogin(username, password)
-    window.sessionStorage.setItem('cms-token', result.token)
+    window.sessionStorage.setItem('go-tell-token', result.token)
     setAuthenticated(true)
     setCanEdit(true)
     setUsername(result.user.username)
   }, [])
   const signOut = useCallback(() => {
-    window.sessionStorage.removeItem('cms-token')
+    if (logoutUrl) {
+      window.location.assign(apiUrl(logoutUrl))
+      return
+    }
+    window.sessionStorage.removeItem('go-tell-token')
     setAuthenticated(false)
     setCanEdit(false)
     setUsername(undefined)
-  }, [])
-  const canSignIn = apiConfig.signIn !== ''
+  }, [logoutUrl])
+  const canSignIn = apiConfig.signIn !== '' || loginUrl !== ''
+  const canSignOut = logoutUrl !== ''
 
   const value = useMemo(
-    () => ({ loading, authenticated, canEdit, username, error, refresh, canSignIn, signIn, sudo, signOut }),
-    [loading, authenticated, canEdit, username, error, refresh, canSignIn, signIn, sudo, signOut],
+    () => ({ loading, authenticated, canEdit, username, error, refresh, canSignIn, canSignOut, signIn, sudo, signOut }),
+    [loading, authenticated, canEdit, username, error, refresh, canSignIn, canSignOut, signIn, sudo, signOut],
   )
   return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>
 }
diff --git a/ui/app/src/components/Shell.tsx b/ui/app/src/components/Shell.tsx
index a984a7d..526c4b5 100644
--- a/ui/app/src/components/Shell.tsx
+++ b/ui/app/src/components/Shell.tsx
@@ -6,7 +6,7 @@ import {type DemoUser} from '../models'
 import {SudoTerminal} from './SudoTerminal'
 
 export function Shell({children}: {children: ReactNode}) {
-  const {authenticated, loading, canSignIn, signIn, username, sudo} = useAuth()
+  const {authenticated, loading, canSignIn, canSignOut, signIn, signOut, username, sudo} = useAuth()
   const [sudoOpen, setSudoOpen] = useState(false)
   const [helpOpen, setHelpOpen] = useState(false)
   const [users, setUsers] = useState<DemoUser[]>([])
@@ -24,7 +24,10 @@ export function Shell({children}: {children: ReactNode}) {
         <span className="brand-cursor">_</span><small>linux · go · java · ideas</small></Link>
       <div className="header-actions">
         {!loading && <button className="mode-badge" type="button" onClick={() => {
-          if (authenticated) return
+          if (authenticated) {
+            if (canSignOut) signOut()
+            return
+          }
           if (users.length > 0) setSudoOpen(true)
           else if (canSignIn) signIn()
         }}>
diff --git a/ui/app/src/models/auth.ts b/ui/app/src/models/auth.ts
index be49c3c..86576bf 100644
--- a/ui/app/src/models/auth.ts
+++ b/ui/app/src/models/auth.ts
@@ -10,6 +10,12 @@ export type SessionResponse = {
   authenticated?: boolean
   canEdit?: boolean
   username?: string
+  email?: string
+  displayName?: string
+  // Go Loose advertises its own login and logout endpoints; the UI follows them
+  // instead of sending the browser to a single-sign-on proxy.
+  loginUrl?: string
+  logoutUrl?: string
 }
 
 export type DemoUser = { username: string; name: string }