Set the chart's placeholder version to 0.9.4

Cosmetic, as in f46e5f5. `make helm-package` passes --version and
--app-version from the tag, so neither field decides anything about what
release.yaml publishes.

Done anyway because a tree heading for v0.9.4 that still says 0.9.3 tells
a reader something false, and the tree is what gets read before the tag
exists. appVersion keeps the v, per APPVERSION_PREFIX in .release.conf.

Claude-Session: https://claude.ai/code/session_014m2pJdpCTv3mvvUUuBM54Y

.gitea/workflows/ci.yaml

@@ -0,0 +1,128 @@
+name: CI
+
+# The release workflow gates a tag, which is late: a broken commit sits green until
+# somebody decides to publish. This runs the same checks on the way in.
+#
+# push is scoped to main rather than all branches so that a branch pushed as part of a
+# pull request is not checked twice.
+#
+# No actions/checkout, deliberately -- same as the letsvisit and charts workflows. The
+# runner image is ubuntu:22.04 whose `nodejs` package is Node 12, and actions/checkout@v4
+# is built with ES2022 static initialiser blocks, so it dies with
+# `SyntaxError: Unexpected token '{'` before running. Cloning with git directly avoids JS
+# actions entirely. This repo is public, so the clone needs no credential at all.
+#
+# `${{ }}` values are passed through `env:` and referenced as quoted shell variables: a
+# ref name is attacker-influenced by anyone who can push a branch or open a PR, and
+# expanding one straight into `run:` is a shell-injection vector.
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+# A rapid series of pushes only needs the last one checked.
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  REPO_URL: https://git.ryuvia.com/niklas/terdut-server.git
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    container:
+      # Runs inside the toolchain image rather than installing Go per job. Note this puts
+      # the job on the dind bridge, which cannot reach github.com or get.helm.sh --
+      # proxy.golang.org and git.ryuvia.com are reachable, which is all this job needs.
+      image: golang:1.26.6-bookworm
+      # act_runner destroys a job's own volumes when it finishes, so without these every
+      # run re-downloads the whole module graph. The names must appear in the runner's
+      # container.valid_volumes allowlist (charts/act-runner in the k8s repo); unlisted
+      # volumes are dropped silently, so a workflow that looks correct can still be
+      # running uncached.
+      volumes:
+        - go-mod-cache:/go/pkg/mod
+        - go-build-cache:/root/.cache/go-build
+        - gobin-cache:/go/bin
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          if [ -n "$HEAD_SHA" ]; then
+            # A pull_request ref_name is "<n>/merge", which is not a fetchable branch.
+            git clone "$REPO_URL" .
+            git checkout -q "$HEAD_SHA"
+          else
+            git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+          fi
+
+      # The gate is the Makefile's rather than a second copy of it here, the way riksdata
+      # and rd-web already do it. `make fmt lint test` is exactly what a developer runs, so
+      # a green pipeline and a green working copy mean the same thing by construction
+      # instead of by remembering to update two files together.
+      #
+      # The reasoning that used to live here moved with the targets: why gofmt is checked
+      # at all (import order survives `go vet`, and both repos sat unformatted through a
+      # green run and a release -- 9046f6e), why both of gofmt's failure modes need
+      # handling, and why `test` adds -race when this job does not have to.
+      - name: Format, vet and test
+        run: make fmt lint test
+
+  # Runs on every push and pull request, unlike the image scan, which needs something
+  # published to scan and so lives in release.yaml. Both are needed: govulncheck reads the
+  # source and its module graph, trivy reads the built artifact, and neither sees what the
+  # other does.
+  security:
+    runs-on: ubuntu-latest
+    container:
+      image: golang:1.26.6-bookworm
+      volumes:
+        - go-mod-cache:/go/pkg/mod
+        - go-build-cache:/root/.cache/go-build
+        - gobin-cache:/go/bin
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          if [ -n "$HEAD_SHA" ]; then
+            git clone "$REPO_URL" .
+            git checkout -q "$HEAD_SHA"
+          else
+            git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+          fi
+
+      - name: Go vulnerability scan (govulncheck)
+        run: make security-go
+
+      - name: Secret scan (gitleaks)
+        run: make security-secrets
+
+  # Host mode, no `container:`: helm is baked into the runner image, and a container job
+  # could not install it -- get.helm.sh is unreachable from the dind bridge. Same reason
+  # release.yaml's chart job runs on the host.
+  #
+  # The chart had no lint step in any workflow until 2026-09-01: release.yaml packaged and
+  # pushed it without rendering it first, so a template that did not compile would have
+  # been found by Flux rather than here.
+  chart:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          if [ -n "$HEAD_SHA" ]; then
+            git clone "$REPO_URL" .
+            git checkout -q "$HEAD_SHA"
+          else
+            git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+          fi
+
+      - name: Lint and render the chart
+        run: make helm-lint

.gitea/workflows/release.yaml

@@ -0,0 +1,223 @@
+name: Release
+
+# Checkout, interpolation and caching conventions match ci.yaml -- see the header there
+# for why there are no JS actions and why every `${{ }}` goes through `env:`.
+#
+# There is no upload-artifact/download-artifact equivalent here (both are JS actions, and
+# this Gitea has no artifact store wired up), so the job that builds the binaries is also
+# the job that publishes them. Nothing is handed between jobs at all.
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+# A tag is not normally re-pushed, so this mostly matters when one is force-moved during
+# a botched release -- the superseded run stops holding runner slots.
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  REPO_URL: https://git.ryuvia.com/niklas/terdut-server.git
+  API: https://git.ryuvia.com/api/v1/repos/niklas/terdut-server
+  REGISTRY: git.ryuvia.com
+  IMAGE: git.ryuvia.com/niklas/terdut-server
+
+jobs:
+  # Gates every publishing job below. A tag that fails here publishes nothing: the
+  # binaries, the image and the chart are all downstream of it.
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: golang:1.26.6-bookworm
+      volumes:
+        - go-mod-cache:/go/pkg/mod
+        - go-build-cache:/root/.cache/go-build
+        - gobin-cache:/go/bin
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+
+      # Same gate as ci.yaml, and the same one a developer runs. See the Makefile for why
+      # each check is there; restating it here is how the two drift apart.
+      - name: Format, vet and test
+        run: make fmt lint test
+
+  binaries:
+    needs: test
+    runs-on: ubuntu-latest
+    container:
+      image: golang:1.26.6-bookworm
+      volumes:
+        - go-mod-cache:/go/pkg/mod
+        - go-build-cache:/root/.cache/go-build
+        - gobin-cache:/go/bin
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+
+      # Compiling is the Makefile's; uploading is not. `make binaries` is runnable on a
+      # laptop, while the step below needs a token and the Gitea release API, which is
+      # this workflow's business and nothing a developer wants a target for.
+      - name: Build every target
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: make binaries VERSION="$REF_NAME"
+
+      # Creating the release is made idempotent rather than assumed-new: a re-run of a
+      # failed release must not die on the release that already exists. Assets are
+      # replaced the same way, so a re-run repairs a partial upload.
+      - name: Publish the release
+        env:
+          REF_NAME: ${{ github.ref_name }}
+          TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          set -eu
+          auth="Authorization: token $TOKEN"
+
+          body=$(curl -sf -H "$auth" "$API/releases/tags/$REF_NAME" || true)
+          if [ -z "$body" ]; then
+            body=$(curl -sf -X POST -H "$auth" -H 'Content-Type: application/json' \
+              -d "{\"tag_name\":\"$REF_NAME\",\"name\":\"$REF_NAME\"}" \
+              "$API/releases")
+          fi
+
+          # The release object serialises `id` first, so the first match is the release's
+          # own id and not one of the nested author/asset ids.
+          release_id=$(printf '%s' "$body" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)
+          [ -n "$release_id" ] || { echo "::error::could not determine release id"; exit 1; }
+          echo "release id $release_id"
+
+          for f in dist/*; do
+            name=$(basename "$f")
+            # Drop an existing asset of the same name first: Gitea happily stores two
+            # attachments with one name, and the updater matches by name.
+            old=$(curl -sf -H "$auth" "$API/releases/$release_id/assets" \
+                  | tr '}' '\n' | grep "\"name\":\"$name\"" \
+                  | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2 || true)
+            if [ -n "$old" ]; then
+              curl -sf -X DELETE -H "$auth" "$API/releases/$release_id/assets/$old" || true
+            fi
+            echo "uploading $name"
+            curl -sf -X POST -H "$auth" -F "attachment=@$f" \
+              "$API/releases/$release_id/assets?name=$name" > /dev/null
+          done
+
+  # Host mode on purpose (no `container:`): this is the only context with a Docker CLI
+  # pointed at the dind daemon. A `container:` job would sit on the dind bridge with no
+  # docker socket at all.
+  image:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+
+      - name: Log in to the registry
+        env:
+          TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: echo "$TOKEN" | docker login "$REGISTRY" -u niklas --password-stdin
+
+      # buildx setup, the platform list and why there is no QEMU all live on the `push`
+      # target now, so the same command publishes from a laptop and from here.
+      - name: Build and push
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: make push VERSION="$REF_NAME"
+
+  # Also host mode: helm is baked into the runner image, and a `container:` job could not
+  # install it -- get.helm.sh is unreachable from the dind bridge.
+  chart:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+
+      # This job is the only thing that publishes the chart, which is what keeps the
+      # published metadata honest. There used to be a second publisher on every charts/**
+      # push to main, and the two raced for the same chart version with different answers:
+      # this one stamps version and appVersion from the tag, that one took Chart.yaml
+      # verbatim, where appVersion is the hardcoded "latest". Whichever landed first won,
+      # so the metadata of a release depended on which runner was quicker -- chart 0.9.0
+      # went out on 2026-08-08 reading appVersion "latest" that way.
+      #
+      # It could not be fixed by making both agree: the tag is pushed after the branch, so
+      # a workflow triggered by the main push cannot know the version it is about to be
+      # tagged with. One publisher, triggered by the tag.
+      #
+      # The cost is that the chart only ships with an app release. That is no real loss --
+      # `make helm-package` derives the chart version from the tag, so a chart-only change
+      # has no version of its own to be released under anyway. Chart fixes ride the next
+      # tag.
+      - name: Refuse a non-version tag
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: |
+          set -eu
+          if ! echo "$REF_NAME" | grep -qE '^v[0-9]'; then
+            echo "::error::refusing to publish a chart for non-version tag ${REF_NAME}"
+            exit 1
+          fi
+
+      # Render before publishing. Until 2026-09-01 this job packaged and pushed without
+      # linting, so a template that did not compile reached the registry and was found by
+      # Flux instead.
+      - name: Lint and render the chart
+        run: make helm-lint
+
+      # The version and appVersion are no longer sed'd into Chart.yaml before packaging:
+      # `helm package --version --app-version` sets both from the tag without mutating the
+      # tree mid-build, which is what the rest of the release process already assumed
+      # happened. The isolated helm repo list moved onto the targets with them.
+      - name: Package and push
+        env:
+          REF_NAME: ${{ github.ref_name }}
+          TOKEN: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          set -eu
+          echo "$TOKEN" | helm registry login "$REGISTRY" -u niklas --password-stdin
+          make helm-package helm-push VERSION="$REF_NAME"
+
+  # Host mode, like image and chart: this needs a docker daemon to run trivy in, and a
+  # `container:` job would sit on the dind bridge with none.
+  #
+  # It scans the pushed image rather than a locally built one, because trivy cannot read a
+  # local image on this runner -- Talos has no docker socket and the dind sidecar shares no
+  # filesystem with the job -- so it pulls from the registry. That is also why this runs
+  # after `image` rather than gating it: a red scan does not unpublish anything.
+  #
+  # What a red scan means is therefore not "the release failed" but "do not bump the wrapper
+  # chart in Ryuvia/charts to this version". The image and chart are already published by
+  # the time this runs, and deliberately so -- this pipeline does not deploy.
+  #
+  # riksdata and rd-web have had this since they were set up; terdut-server went without any
+  # image scanning until 2026-09-02, so every release before v0.9.4 was published with no
+  # CVE check at all.
+  scan-image:
+    needs: image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        env:
+          REF_NAME: ${{ github.ref_name }}
+        run: git clone --depth=1 --branch "$REF_NAME" "$REPO_URL" .
+
+      # Credentials are passed even though these packages are anonymously pullable -- that
+      # is a property of the personal namespace this publishes to, not something a release
+      # should depend on staying true.
+      - name: Scan the pushed image (trivy)
+        env:
+          TRIVY_USERNAME: niklas
+          TRIVY_PASSWORD: ${{ secrets.REGISTRY_TOKEN }}
+          REF_NAME: ${{ github.ref_name }}
+        run: make security-image VERSION="$REF_NAME"

.github/workflows/chart-release.yml

@@ -1,38 +0,0 @@
-name: Release Helm Chart
-
-on:
-  push:
-    branches:
-      - main
-    paths:
-      - charts/**
-
-jobs:
-  release:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      pages: write
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Configure Git
-        run: |
-          git config user.name "$GITHUB_ACTOR"
-          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
-
-      - name: Install Helm
-        uses: azure/setup-helm@v4
-
-      - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.6.0
-        with:
-          # A charts/** push without a Chart.yaml version bump would otherwise
-          # fail trying to re-release the current version. Tagged releases also
-          # publish the chart from release.yml, so the two can race.
-          skip_existing: true
-        env:
-          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/ci.yml

@@ -1,34 +0,0 @@
-name: CI
-
-# The release workflow gates a tag, which is late: a broken commit sits green
-# until somebody decides to publish. This runs the same checks on the way in.
-#
-# push is scoped to main rather than all branches for two reasons: a branch
-# pushed as part of a pull request would otherwise be checked twice, and
-# gh-pages holds the published Helm chart index with no Go code in it, so
-# `go vet ./...` there would fail on a missing go.mod.
-on:
-  push:
-    branches: [main]
-  pull_request:
-
-# A rapid series of pushes only needs the last one checked.
-concurrency:
-  group: ci-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
-      - name: Vet
-        run: go vet ./...
-
-      - name: Test
-        run: go test ./...

.github/workflows/release.yml

@@ -1,143 +0,0 @@
-name: Release
-
-on:
-  push:
-    tags:
-      - 'v*'
-  workflow_dispatch:
-
-jobs:
-  # Gates every publishing job below. A tag that fails here publishes nothing:
-  # the binaries, the image and the chart are all downstream of it.
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
-      - name: Vet
-        run: go vet ./...
-
-      - name: Test
-        run: go test ./...
-
-  build:
-    needs: test
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        include:
-          - goos: linux
-            goarch: amd64
-          - goos: linux
-            goarch: arm64
-          - goos: darwin
-            goarch: amd64
-          - goos: darwin
-            goarch: arm64
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version-file: go.mod
-
-      - name: Build
-        env:
-          GOOS: ${{ matrix.goos }}
-          GOARCH: ${{ matrix.goarch }}
-        run: |
-          go build \
-            -ldflags "-w -s -X main.version=${{ github.ref_name }}" \
-            -o terdut-${{ github.ref_name }}-${{ matrix.goos }}-${{ matrix.goarch }} \
-            ./cmd/terdut
-
-      - uses: actions/upload-artifact@v4
-        with:
-          name: terdut-${{ github.ref_name }}-${{ matrix.goos }}-${{ matrix.goarch }}
-          path: terdut-${{ github.ref_name }}-${{ matrix.goos }}-${{ matrix.goarch }}
-
-  docker:
-    needs: test
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to GHCR
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          push: true
-          build-args: VERSION=${{ github.ref_name }}
-          tags: |
-            ghcr.io/yeniklas/terdut-server:latest
-            ghcr.io/yeniklas/terdut-server:${{ github.ref_name }}
-
-  chart:
-    needs: test
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Configure Git
-        run: |
-          git config user.name "$GITHUB_ACTOR"
-          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
-
-      - name: Install Helm
-        uses: azure/setup-helm@v4
-
-      - name: Update chart versions
-        run: |
-          VERSION="${{ github.ref_name }}"
-          if [[ "$VERSION" =~ ^v[0-9] ]]; then
-            CHART_VERSION="${VERSION#v}"
-            sed -i "s/^version:.*/version: ${CHART_VERSION}/" charts/terdut-server/Chart.yaml
-            sed -i "s/^appVersion:.*/appVersion: \"${VERSION}\"/" charts/terdut-server/Chart.yaml
-          fi
-
-      - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.6.0
-        with:
-          skip_existing: true
-        env:
-          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-
-  release:
-    needs: build
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-    steps:
-      - uses: actions/download-artifact@v4
-        with:
-          merge-multiple: true
-
-      - uses: softprops/action-gh-release@v2
-        with:
-          files: 'terdut-*'

.gitignore

@@ -1,6 +1,11 @@
 # build output
 /terdut
 /terdut-server
+# `make binaries` and `make helm-package` write here
+/dist/
+# isolated helm repo list written by the publishing targets, so the machine-wide
+# one (which has an unreachable entry) cannot abort a release
+/.helm-repos.yaml
 
 # SQLite database files
 *.db

.release.conf

@@ -0,0 +1,24 @@
+# Read by the `release` skill (~/.claude/skills/release).
+#
+# Only what the Makefile cannot already say. IMAGE, HELM_CHART and HELM_REPO come from
+# `make release-vars`, so they have one definition and cannot drift from what is built.
+#
+# Defaults, set here only where this repo differs:
+#   CHARTS_REPO=$HOME/git/charts   CHARTS_DIR=<image basename>
+#   GITEA_LOGIN=Ryuvia            APPVERSION_PREFIX=
+#   PROSE_LANG=en
+
+# Same as the image basename, so this is only stated to be read rather than derived.
+CHARTS_DIR=terdut-server
+
+# riksdata writes appVersion: "v0.3.1", rd-web writes a bare 0.5.0; this repo writes the
+# v, like riksdata. Nothing reads the field -- .gitea/workflows/release.yaml stamps both
+# version and appVersion from the tag when it publishes -- but people read it, and until
+# 2026-09-01 it said "latest" while the tree headed for a numbered release.
+APPVERSION_PREFIX=v
+
+# English. The Swedish in riksdata and rd-web follows from their subject matter, not from a
+# house style: terdut-server is an on-call tool whose labels, API and data are English, and
+# nothing about it is coupled to Swedish. Code comments and docs here were always English;
+# from 2026-09-01 the release prose is too.
+PROSE_LANG=en

CLAUDE.md

@@ -0,0 +1,43 @@
+## Release
+
+Say **"Release"** (or "Release X.Y.Z") and the `release` skill runs it: commit, push, tag,
+wait for the pipeline, then open the wrapper-chart PR against `Ryuvia/charts`. It stops
+there — merging and the Flux reconcile stay manual, deliberately.
+
+Preconditions and the plan, without side effects:
+
+```sh
+~/.claude/skills/release/scripts/release-preflight          # state + suggested version
+~/.claude/skills/release/scripts/release-preflight vX.Y.Z   # validate that release
+```
+
+Config is `.release.conf` here plus `make release-vars`. The process itself lives in
+`~/.claude/skills/release/`; why it is shaped this way is in README.md §Releasing.
+
+Two things about this repo specifically:
+
+- **The image is scanned after it is published, not before.** `scan-image` runs trivy
+  against the pushed image, because trivy cannot read a locally built one on this runner.
+  A red scan therefore unpublishes nothing — it means: do not bump the wrapper chart in
+  `Ryuvia/charts` to this version. Added 2026-09-02; every release up to and including
+  v0.9.3 was published with no CVE check at all.
+- **The wrapper chart has two `tag:` lines** — the app image and the python backup sidecar —
+  so `chart-bump` needs `--image "$IMAGE"` to know which one moves.
+
+## Checks
+
+`make fmt lint test helm-lint` **is** what the pipeline runs — `ci.yaml` and `release.yaml`
+call these targets rather than restating them, the way riksdata and rd-web do. A green gate
+here and a green pipeline are the same code, not two descriptions of it. `test` adds `-race`,
+which the workflows do not have to ask for since they call the target; see the comment on it
+for why.
+
+`make release` (build + push the multi-arch image, package + push the chart) is what
+`release.yaml` invokes. Do not run it by hand — it refuses `VERSION=dev` for that reason, and
+publishing happens by pushing a tag.
+
+Three scans, and they see different things: `security-go` (govulncheck) reads the source and
+its module graph and reports only vulnerabilities the code can actually reach;
+`security-secrets` (gitleaks) reads the working tree, not the history, so it catches a secret
+on the way in rather than auditing what is already committed; `security-image` (trivy) reads
+the published artifact and therefore only runs on a tag. The first two gate every push.

Dockerfile

@@ -1,10 +1,19 @@
-FROM golang:1.25-alpine AS builder
+# --platform=$BUILDPLATFORM pins the builder to the machine doing the building, so a
+# multi-arch build compiles both targets natively instead of running an emulated arm64
+# toolchain under QEMU. Go cross-compiles from TARGETOS/TARGETARCH, which BuildKit fills
+# in per platform. The CI runner has no binfmt registration and no way to get one (the
+# JS action that used to install it cannot run there), so this is not just an
+# optimisation -- it is what makes the arm64 image buildable at all.
+FROM --platform=$BUILDPLATFORM golang:1.25-alpine AS builder
 WORKDIR /src
 COPY go.mod go.sum ./
 RUN go mod download
 COPY . .
 ARG VERSION=dev
-RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-w -s -X main.version=${VERSION}" -o /terdut ./cmd/terdut
+ARG TARGETOS
+ARG TARGETARCH
+RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
+    go build -ldflags="-w -s -X main.version=${VERSION}" -o /terdut ./cmd/terdut
 
 FROM scratch
 COPY --from=builder /terdut /terdut

Makefile

@@ -0,0 +1,219 @@
+REGISTRY  := git.ryuvia.com
+# The personal namespace, not ryuvia — deliberately, and for one reason: Gitea
+# scopes package visibility to the owner with no per-package override, so
+# ryuvia/* is private because the org is. Publishing here keeps the image and
+# chart anonymously pullable, so no pull secret is needed in the cluster and
+# Flux needs no registry credentials. Same choice riksdata and rd-web made.
+OWNER     := niklas
+
+IMAGE      := $(REGISTRY)/$(OWNER)/terdut-server
+HELM_CHART := charts/terdut-server
+HELM_REPO  := oci://$(REGISTRY)/$(OWNER)
+
+# go.mod pins an exact patch release so nobody builds the shipped binary with a
+# toolchain carrying known stdlib CVEs. Fedora's Go package overrides the
+# upstream GOTOOLCHAIN default to `local`, which turns that pin into a hard
+# failure on a dev box one patch behind, so restore the upstream default here.
+export GOTOOLCHAIN ?= auto
+
+.PHONY: help
+help: ## Show this help
+	@grep -hE '^[a-zA-Z_-]+:.*?## ' $(MAKEFILE_LIST) | \
+		awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[36m%-22s\033[0m %s\n", $$1, $$2}'
+
+## --- checks ---
+#
+# These three mirror .gitea/workflows/ci.yaml step for step, so a green `make fmt
+# lint test` here means the same thing CI means. The one deliberate difference is
+# -race below.
+
+.PHONY: test
+test: ## Run the test suite
+	go test -race ./...
+
+# CI runs a bare `go test ./...`. This is stricter on purpose: the sweeper, the
+# notifier goroutine and the deadman sweep all touch the same single-connection
+# database, and a race there would surface as a flaky production incident rather
+# than a failed build. It passes today; if it ever costs more than it catches,
+# the honest fix is to teach CI -race too, not to quietly drop it here.
+.PHONY: lint
+lint: ## go vet
+	go vet ./...
+
+# Copied from ci.yaml rather than simplified, because both of gofmt's failure
+# modes need handling and they are not alike. A file that is merely misformatted
+# is listed on stdout with exit 0 — so the failure has to be raised by hand. A
+# file that does not parse is the opposite: nothing on stdout and exit 2, which a
+# naive `[ -n "$$out" ]` reads as success. See 9046f6e.
+.PHONY: fmt
+fmt: ## Report unformatted files
+	@if ! unformatted=$$(gofmt -l .); then \
+		echo "gofmt could not parse the tree:"; gofmt -l .; exit 1; \
+	fi; \
+	if [ -n "$$unformatted" ]; then \
+		echo "gofmt needed:"; echo "$$unformatted"; gofmt -d .; exit 1; \
+	fi
+
+.PHONY: helm-lint
+helm-lint: ## Lint and render the chart
+	helm lint $(HELM_CHART) --set image.tag=v0.0.0
+	helm template terdut-server $(HELM_CHART) --namespace terdut-server \
+		--set image.tag=v0.0.0 >/dev/null
+	@# networking.listener defaults to "", which attaches the route to every
+	@# matching listener including plaintext HTTP. Production sets it, so the
+	@# default render proves nothing about the path that actually ships.
+	helm template terdut-server $(HELM_CHART) --namespace terdut-server \
+		--set image.tag=v0.0.0 --set networking.listener=https-terdut >/dev/null
+
+## --- release ---
+
+# The release process (~/.claude/skills/release) reads these rather than restating them.
+# One definition, so the version that gets tagged, the image that gets pushed and the chart
+# the wrapper pins cannot drift apart in a second copy.
+.PHONY: release-vars
+release-vars: ## Print the variables the release process reads
+	@printf 'IMAGE=%s\nHELM_CHART=%s\nHELM_REPO=%s\n' '$(IMAGE)' '$(HELM_CHART)' '$(HELM_REPO)'
+
+# There is deliberately no build/push/helm-package/helm-push/release here, unlike
+# riksdata and rd-web. .gitea/workflows/release.yaml owns publishing for this repo,
+# and it does two things a local make cannot: it builds linux/amd64 and linux/arm64
+# through buildx, and it stamps the chart's version and appVersion from the tag. A
+# `docker build && docker push` target would push a single-architecture image over
+# the multi-arch tag, which is both easy to do by accident and invisible afterwards
+# — the tag would still resolve, just not on arm64. Publishing happens by pushing a
+# tag; nothing else.
+
+## --- publishing ---
+#
+# These exist so .gitea/workflows/release.yaml can call `make release` instead of
+# restating the build in YAML, the way riksdata and rd-web already do. One definition
+# of how this is built and published, runnable locally, reviewable in a diff.
+#
+# VERSION is the git tag, passed in by the workflow. The guard below is why a stray
+# local `make release` cannot publish: dev is not a version anyone releases.
+
+VERSION ?= dev
+
+# Helm requires strict SemVer — strip a leading 'v' if present.
+CHART_VERSION := $(shell echo "$(VERSION)" | sed 's/^v//')
+
+PLATFORMS      ?= linux/amd64,linux/arm64
+BUILDX_BUILDER ?= terdut
+
+TRIVY_VERSION       := 0.73.0
+GOVULNCHECK_VERSION := v1.1.4
+GITLEAKS_VERSION    := v8.30.0
+
+# --pull, not --no-cache: refresh the base image without discarding the layer cache.
+DOCKER_BUILD_FLAGS ?= --pull
+
+# An isolated repo list. The machine-wide one is not this build's business, and one
+# unreachable entry in it aborts otherwise-fine helm commands — there is a dead
+# TrueCharts repo on this host that does exactly that. HELM_REPOSITORY_CACHE is
+# deliberately NOT overridden alongside it: helm writes a refreshed index to the default
+# cache and then looks for it in the overridden one.
+HELM_ISOLATED = HELM_REPOSITORY_CONFIG=$(CURDIR)/.helm-repos.yaml
+
+.PHONY: require-version
+require-version:
+	@test "$(VERSION)" != "dev" || \
+		(echo "VERSION=dev names no release — pass VERSION=vX.Y.Z (the workflow passes the tag)" && exit 1)
+
+.PHONY: build
+build: ## Build the image for this host only, without pushing (local check / CI smoke)
+	docker build $(DOCKER_BUILD_FLAGS) \
+		--build-arg VERSION=$(VERSION) \
+		-t $(IMAGE):$(VERSION) .
+
+# Multi-arch, so unlike riksdata and rd-web this cannot be a separate build then push:
+# buildx cannot load a multi-platform result into the local image store, it can only
+# push it. `build` above stays single-platform and local-only for that reason.
+#
+# No QEMU: the Dockerfile's builder stage runs on $$BUILDPLATFORM and cross-compiles from
+# TARGETARCH, so both platforms build natively. The default "docker" driver cannot build
+# more than one platform at a time; the docker-container driver can.
+.PHONY: push
+push: require-version ## Build and publish the multi-arch image
+	docker buildx create --name $(BUILDX_BUILDER) --use 2>/dev/null || docker buildx use $(BUILDX_BUILDER)
+	docker buildx build \
+		--platform $(PLATFORMS) \
+		--build-arg "VERSION=$(VERSION)" \
+		--tag "$(IMAGE):latest" \
+		--tag "$(IMAGE):$(VERSION)" \
+		--push .
+
+# --version and --app-version come from the tag, so Chart.yaml's own fields decide nothing
+# about what is published. They used to be rewritten in place with sed before packaging;
+# the flags do the same job without mutating the tree mid-build.
+.PHONY: helm-package
+helm-package: require-version ## Package the chart, versioned from the tag
+	$(HELM_ISOLATED) helm package $(HELM_CHART) \
+		--version $(CHART_VERSION) \
+		--app-version $(VERSION) \
+		--destination dist
+
+.PHONY: helm-push
+helm-push: require-version ## Push the packaged chart to the OCI registry
+	$(HELM_ISOLATED) helm push dist/terdut-server-$(CHART_VERSION).tgz $(HELM_REPO)
+
+.PHONY: binaries
+binaries: require-version ## Cross-compile the release binaries into dist/
+	@mkdir -p dist
+	@set -eu; for target in linux/amd64 linux/arm64 darwin/amd64 darwin/arm64; do \
+		GOOS="$${target%/*}"; GOARCH="$${target#*/}"; \
+		out="dist/terdut-$(VERSION)-$${GOOS}-$${GOARCH}"; \
+		echo "building $$out"; \
+		GOOS="$$GOOS" GOARCH="$$GOARCH" go build \
+			-ldflags "-w -s -X main.version=$(VERSION)" \
+			-o "$$out" ./cmd/terdut; \
+	done
+
+.PHONY: release
+release: push helm-package helm-push ## Publish image + chart (the workflow's one call)
+
+## --- security ---
+
+# Symbol-level, not dependency-level: govulncheck reports a vulnerability only when the
+# code can actually reach it. As of 2026-09-02 this repo imports three chi advisories and
+# reports none of them, because all three are middleware.RealIP and router.go uses Logger
+# and Recoverer. That is the useful property rather than a loophole -- adding
+# middleware.RealIP would turn this red, which is exactly when someone should look.
+.PHONY: security-go
+security-go: ## Scan Go deps for known CVEs (govulncheck)
+	go run golang.org/x/vuln/cmd/govulncheck@$(GOVULNCHECK_VERSION) ./...
+
+# --no-git scans the working tree rather than the history, so this catches a secret on the
+# way in. It is not a history audit and finding nothing here says nothing about what is
+# already committed. --redact because the finding is printed into a CI log.
+#
+# Note when testing it that gitleaks allowlists well-known example credentials -- the AWS
+# key from their own documentation does not trip it. A private key block does.
+.PHONY: security-secrets
+security-secrets: ## Scan the working tree for committed secrets (gitleaks)
+	go run github.com/zricethezav/gitleaks/v8@$(GITLEAKS_VERSION) detect --no-git \
+		--source . --redact --no-banner --exit-code 1
+
+
+# Scans the pushed image, not a local one: trivy cannot read a locally built image on the
+# runner -- Talos has no docker socket, and the dind sidecar shares no filesystem with the
+# job -- so it pulls from the registry. Same reason riksdata and rd-web scan after pushing.
+#
+# It cannot gate a deploy, because this pipeline does not deploy. A red scan means: do not
+# bump the wrapper chart in Ryuvia/charts to this version.
+#
+# The image is FROM scratch, so there are no OS packages to scan and trivy sees exactly one
+# target -- the Go binary and its module graph. That also makes scanning a single platform
+# sufficient here: linux/amd64 and linux/arm64 are the same modules built for a different
+# GOARCH, so a CVE in one is a CVE in both. On an image with a base layer that would not
+# hold and both platforms would need scanning.
+#
+# This is the last of the three scans and the only one that needs a published artifact;
+# security-go and security-secrets above run on every push.
+.PHONY: security-image
+security-image: require-version ## Scan the pushed image for CVEs (needs VERSION)
+	@# The named volume persists trivy's vulnerability DB between runs; without it every
+	@# scan re-downloads the whole database.
+	docker run --rm -e TRIVY_USERNAME -e TRIVY_PASSWORD \
+		-v trivy-cache:/root/.cache/trivy \
+		docker.io/aquasec/trivy:$(TRIVY_VERSION) image --severity HIGH,CRITICAL \
+		--ignore-unfixed --exit-code 1 $(IMAGE):$(VERSION)

README.md

@@ -17,7 +17,7 @@ Incident management server for teams using Prometheus Alertmanager.
 **Prerequisites:** Go 1.21+
 
 ```bash
-git clone https://github.com/yeniklas/terdut-server
+git clone https://git.ryuvia.com/niklas/terdut-server
 cd terdut-server
 go run ./cmd/terdut
 ```
@@ -52,11 +52,12 @@ docker run -p 8080:8080 -v $(pwd)/data:/data \
 
 ### Kubernetes
 
-A Helm chart is published from this repository:
+A Helm chart is published from this repository as an OCI artifact, versioned in lockstep
+with the app — chart `x.y.z` is always app `vx.y.z`:
 
 ```bash
-helm repo add terdut-server https://yeniklas.github.io/terdut-server
-helm upgrade --install terdut-server terdut-server/terdut-server \
+helm upgrade --install terdut-server oci://git.ryuvia.com/niklas/terdut-server \
+  --version 0.9.2 \
   --namespace terdut-server --create-namespace \
   --set networking.hostname=terdut.example.com
 ```
@@ -660,3 +661,64 @@ go test ./...        # run all tests
 go build ./...       # compile all packages
 go run ./cmd/terdut  # run locally
 ```
+
+`make fmt lint test helm-lint` is the gate. It mirrors `.gitea/workflows/ci.yaml` step for
+step, so a green run here means a green pipeline — with one deliberate exception: `make test`
+adds `-race`, which CI does not. The sweeper, the notifier goroutine and the dead man's switch
+sweep all touch the same single database connection, and a race between them would surface as
+a flaky incident in production rather than as a red build.
+
+## Releasing
+
+```
+push or PR         → ci.yaml       gofmt, go vet, go test -race
+                                   govulncheck, gitleaks
+                                   helm lint + render
+push tag vX.Y.Z    → release.yaml  the same gate, then publish:
+                                     git.ryuvia.com/niklas/terdut-server:vX.Y.Z
+                                     oci://git.ryuvia.com/niklas/terdut-server  X.Y.Z
+                                   then trivy-scan the pushed image
+PR to Ryuvia/charts →              bump the wrapper chart to X.Y.Z; on merge
+                                   Flux reconciles and the release rolls out
+```
+
+Both artifacts go to the **personal** Gitea namespace rather than `ryuvia`, because Gitea
+scopes package visibility to the owner with no per-package override — so `ryuvia/*` is private
+because the org is. Publishing to `niklas` keeps them anonymously pullable, which is why no
+pull secret is needed in the cluster. Same reasoning, and the same choice, as riksdata and
+rd-web.
+
+Saying **"Release"** runs all three rows: the `release` skill commits, pushes, tags, waits for
+the pipeline, and opens the `Ryuvia/charts` PR, stopping before the merge. See
+`~/.claude/skills/release/`, or `.release.conf` here for this repo's part of it.
+
+The chart is published **only** from the tag, by the `chart` job. There used to be a second
+publisher on every `charts/**` push to main, and the two raced for the same chart version with
+different answers — chart 0.9.0 went out reading `appVersion: "latest"` that way. One
+publisher, triggered by the tag (`766f439`). The cost is that a chart-only change has no
+version of its own and rides the next app tag.
+
+Both workflows are thin drivers over the Makefile: `ci.yaml` runs `make fmt lint test` and
+`make helm-lint`, `release.yaml` adds `make binaries`, `make push`, `make helm-package` and
+`make helm-push`. That is deliberate — it is what makes a green local gate and a green
+pipeline the same code rather than two descriptions of it, and it is how riksdata and rd-web
+have always worked.
+
+`make push` builds and pushes in one step, unlike those two, because the image is
+`linux/amd64,linux/arm64` and buildx cannot load a multi-platform result into the local image
+store. `make build` stays single-platform and local-only. Both refuse `VERSION=dev`:
+publishing is one command, so it is also one command to run by accident. Publishing happens
+by pushing a tag.
+
+Two things the release process needs to know about this repo:
+
+- **The image scan runs after publishing**, like riksdata's and rd-web's: trivy cannot read
+  a locally built image on this runner, so it pulls the pushed one. A red `scan-image` means
+  do not bump the wrapper chart to that version — it cannot unpublish anything. The image is
+  `FROM scratch`, so trivy sees exactly one target, the Go binary and its module graph.
+- **The wrapper chart's `values.yaml` has two `tag:` lines** — the app image and the python
+  backup sidecar — so `chart-bump` is given `--image` to say which one moves.
+
+The wrapper chart must have **its own `version:` bumped in the same commit**. Flux reconciles
+with `reconcileStrategy: ChartVersion`, so a chart whose version did not change produces no
+new artifact and the change is never deployed — with no error anywhere.

charts/terdut-server/Chart.yaml

@@ -2,5 +2,18 @@ apiVersion: v2
 name: terdut-server
 description: A Helm chart for Terminal Duty — on-call alert management server
 type: application
-version: 0.9.0
-appVersion: "latest"
+# These two are placeholders for a local `helm install ./charts/terdut-server`, not the
+# released values. .gitea/workflows/release.yaml rewrites both from the git tag when it
+# publishes, so the chart version always equals the app version.
+#
+# They are kept in step with the tag anyway. Being read is the only thing these two lines
+# do -- `helm package --version --app-version` sets the published values from the tag and
+# never consults these -- and a tree heading for a numbered release that states an older
+# number tells its reader something false. They said 0.9.0 and "latest" until 2026-09-01,
+# through two releases.
+#
+# appVersion and image.tag in values.yaml no longer agree, and that is not an oversight:
+# image.tag stays "latest", which is what a local install actually pulls. appVersion is
+# metadata and drives nothing.
+version: 0.9.4
+appVersion: "v0.9.4"

charts/terdut-server/templates/bootstrap-job.yaml

@@ -23,13 +23,23 @@ spec:
       serviceAccountName: {{ include "terdut-server.fullname" . }}-bootstrap
       containers:
         - name: bootstrap
-          image: alpine:3
+          # alpine/curl, not alpine:3 + `apk add curl`. Installing the binary at run time
+          # writes it into the container's writable upper layer, which is exactly the
+          # signature Falco's `Drop and execute new binary in container` (MITRE TA0003)
+          # exists to catch -- this hook emitted two Critical events on every single
+          # upgrade. See Ryuvia/charts#100. It also made `helm upgrade` depend on the
+          # Alpine CDN answering, since this runs as a post-upgrade hook and a failed
+          # hook fails the release.
+          #
+          # Still a full Alpine underneath, so sh, cat, sleep, grep, cut, head and tail
+          # are all present (verified in-cluster 2026-09-04). The image declares
+          # ENTRYPOINT ["/entrypoint.sh"], which `command:` below overrides -- do not
+          # change `command:` to `args:`.
+          image: alpine/curl:8.21.0@sha256:a1c44bab54d88e18ea9a6a4ecefab7f2d230b968567b78960fcaff8d51b7f067
           command:
             - /bin/sh
             - -c
             - |
-              apk add --no-cache curl > /dev/null 2>&1
-
               SERVICE_URL="http://{{ include "terdut-server.fullname" . }}:{{ .Values.service.port }}"
               SECRET_NAME="{{ include "terdut-server.bootstrapSecretName" . }}"
               K8S_API="https://kubernetes.default.svc"

charts/terdut-server/values.yaml

@@ -7,7 +7,7 @@ networking:
   listener: ""
 
 image:
-  repository: ghcr.io/yeniklas/terdut-server
+  repository: git.ryuvia.com/niklas/terdut-server
   tag: "latest"
   pullPolicy: IfNotPresent
 

cmd/terdut/main.go

@@ -8,9 +8,9 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/api"
-	"github.com/yeniklas/terdut-server/internal/config"
-	"github.com/yeniklas/terdut-server/internal/db"
+	"git.ryuvia.com/niklas/terdut-server/internal/api"
+	"git.ryuvia.com/niklas/terdut-server/internal/config"
+	"git.ryuvia.com/niklas/terdut-server/internal/db"
 )
 
 var version = "dev"

go.mod

@@ -1,4 +1,4 @@
-module github.com/yeniklas/terdut-server
+module git.ryuvia.com/niklas/terdut-server
 
 go 1.25.9
 

internal/api/alerts.go

@@ -10,8 +10,8 @@ import (
 	"strings"
 	"time"
 
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 	"github.com/go-chi/chi/v5"
-	"github.com/yeniklas/terdut-server/internal/models"
 )
 
 // alertSelectFrom is the shared SELECT … FROM … clause used by all alert queries.

internal/api/api_test.go

@@ -12,8 +12,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/api"
-	"github.com/yeniklas/terdut-server/internal/db"
+	"git.ryuvia.com/niklas/terdut-server/internal/api"
+	"git.ryuvia.com/niklas/terdut-server/internal/db"
 )
 
 // ts wraps httptest.Server with a pre-bootstrapped API key. db is exposed so

internal/api/deadman_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/api"
+	"git.ryuvia.com/niklas/terdut-server/internal/api"
 )
 
 // ---------------------------------------------------------------------------

internal/api/incident_store.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/models"
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 )
 
 // Values for incidents.resolution_source, recording who closed the incident:

internal/api/incidents.go

@@ -8,8 +8,8 @@ import (
 	"strings"
 	"time"
 
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 	"github.com/go-chi/chi/v5"
-	"github.com/yeniklas/terdut-server/internal/models"
 )
 
 func handleListIncidents(db *sql.DB) http.HandlerFunc {

internal/api/incidents_test.go

@@ -10,8 +10,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/api"
-	"github.com/yeniklas/terdut-server/internal/db"
+	"git.ryuvia.com/niklas/terdut-server/internal/api"
+	"git.ryuvia.com/niklas/terdut-server/internal/db"
 )
 
 // amAlert builds one alert of a webhook payload.
@@ -653,6 +653,61 @@ func TestStats_Incidents(t *testing.T) {
 	}
 }
 
+// An empty window is a report of zero, not a failure. SUM over no rows is NULL
+// in SQLite, which used to come back as a 500 the moment every incident was
+// archived — the state a quiet installation settles into.
+func TestStats_IncidentsEmptyWindowIsZeroNotAnError(t *testing.T) {
+	s := newTS(t)
+
+	// No incidents at all.
+	resp := s.req(t, http.MethodGet, "/api/stats/incidents", nil)
+	if resp.StatusCode != http.StatusOK {
+		resp.Body.Close()
+		t.Fatalf("expected 200 on an empty database, got %d", resp.StatusCode)
+	}
+	var stats map[string]any
+	decode(t, resp, &stats)
+	for _, k := range []string{"total", "triggered", "acknowledged", "resolved"} {
+		if stats[k].(float64) != 0 {
+			t.Errorf("expected %s 0, got %v", k, stats[k])
+		}
+	}
+
+	// And with every incident archived out of the window.
+	postWebhook(t, s, []map[string]any{
+		amAlert("fp-s4", "Gone", "firing", "2026-05-20T10:00:00Z", zeroTime, nil),
+	})
+	s.req(t, http.MethodPost, "/api/incidents/1/archive", nil).Body.Close()
+
+	resp = s.req(t, http.MethodGet, "/api/stats/incidents", nil)
+	if resp.StatusCode != http.StatusOK {
+		resp.Body.Close()
+		t.Fatalf("expected 200 when every incident is archived, got %d", resp.StatusCode)
+	}
+	stats = nil
+	decode(t, resp, &stats)
+	if stats["total"].(float64) != 0 {
+		t.Errorf("expected total 0, got %v", stats["total"])
+	}
+}
+
+// The alert stats share the same aggregate, and the same empty-window trap.
+func TestStats_AlertsEmptyWindowIsZeroNotAnError(t *testing.T) {
+	s := newTS(t)
+	resp := s.req(t, http.MethodGet, "/api/stats/alerts", nil)
+	if resp.StatusCode != http.StatusOK {
+		resp.Body.Close()
+		t.Fatalf("expected 200 on an empty database, got %d", resp.StatusCode)
+	}
+	var stats map[string]any
+	decode(t, resp, &stats)
+	for _, k := range []string{"total", "firing", "resolved"} {
+		if stats[k].(float64) != 0 {
+			t.Errorf("expected %s 0, got %v", k, stats[k])
+		}
+	}
+}
+
 // Nothing acknowledged yet means "no data", which is not the same claim as zero.
 func TestStats_IncidentsNullMTTAWhenNothingAcknowledged(t *testing.T) {
 	s := newTS(t)

internal/api/middleware.go

@@ -9,7 +9,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/models"
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 )
 
 type contextKey string

internal/api/notifier.go

@@ -11,7 +11,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/models"
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 )
 
 const (

internal/api/notify_test.go

@@ -11,7 +11,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/yeniklas/terdut-server/internal/api"
+	"git.ryuvia.com/niklas/terdut-server/internal/api"
 )
 
 // ---------------------------------------------------------------------------

internal/api/schedule.go

@@ -8,8 +8,8 @@ import (
 	"strings"
 	"time"
 
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 	"github.com/go-chi/chi/v5"
-	"github.com/yeniklas/terdut-server/internal/models"
 )
 
 func handleCreateSchedule(db *sql.DB) http.HandlerFunc {

internal/api/stats.go

@@ -13,11 +13,14 @@ func handleStatsAlerts(db *sql.DB) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		where, args := statsFilter(r.URL.Query(), "received_at")
 
+		// COALESCE because SUM over zero rows is NULL, not 0, and a count of
+		// nothing is 0 — without it an empty window is a 500 rather than a
+		// legitimately empty report.
 		var total, firing, resolved int64
 		err := db.QueryRowContext(r.Context(), fmt.Sprintf(`
 			SELECT COUNT(*),
-			       SUM(CASE WHEN status = 'firing'   THEN 1 ELSE 0 END),
-			       SUM(CASE WHEN status = 'resolved' THEN 1 ELSE 0 END)
+			       COALESCE(SUM(CASE WHEN status = 'firing'   THEN 1 ELSE 0 END), 0),
+			       COALESCE(SUM(CASE WHEN status = 'resolved' THEN 1 ELSE 0 END), 0)
 			FROM alerts WHERE %s`, where), args...,
 		).Scan(&total, &firing, &resolved)
 		if err != nil {
@@ -167,13 +170,16 @@ func handleStatsIncidents(db *sql.DB) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		where, args := statsFilter(r.URL.Query(), "triggered_at")
 
+		// The counts are COALESCEd because SUM over zero rows is NULL, not 0.
+		// The averages are not: mtta and mttr stay null on purpose, since zero
+		// would read as "instant" rather than "nothing to measure yet".
 		var total, triggered, acknowledged, resolved int64
 		var mtta, mttr *float64
 		err := db.QueryRowContext(r.Context(), fmt.Sprintf(`
 			SELECT COUNT(*),
-			       SUM(CASE WHEN status = 'triggered'    THEN 1 ELSE 0 END),
-			       SUM(CASE WHEN status = 'acknowledged' THEN 1 ELSE 0 END),
-			       SUM(CASE WHEN status = 'resolved'     THEN 1 ELSE 0 END),
+			       COALESCE(SUM(CASE WHEN status = 'triggered'    THEN 1 ELSE 0 END), 0),
+			       COALESCE(SUM(CASE WHEN status = 'acknowledged' THEN 1 ELSE 0 END), 0),
+			       COALESCE(SUM(CASE WHEN status = 'resolved'     THEN 1 ELSE 0 END), 0),
 			       AVG(CASE WHEN acknowledged_at IS NOT NULL
 			                THEN acknowledged_at - triggered_at END),
 			       AVG(CASE WHEN resolved_at IS NOT NULL

internal/api/users.go

@@ -11,8 +11,8 @@ import (
 	"strings"
 	"time"
 
+	"git.ryuvia.com/niklas/terdut-server/internal/models"
 	"github.com/go-chi/chi/v5"
-	"github.com/yeniklas/terdut-server/internal/models"
 )
 
 func handleBootstrap(db *sql.DB) http.HandlerFunc {