Note the fork, link to its source and build its image

AGPLv3 asks a modified version to say so and to offer its source to the people
using it, so the README notes the changes and the links in the app point here.
The workflow builds the image from tags named docspring-*, which no upstream
workflow picks up.

Author: ndbroadbent

.github/workflows/docspring-image.yml

@@ -0,0 +1,47 @@
+name: Build DocSpring image
+
+on:
+  push:
+    tags: ["docspring-*"]
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  IMAGE: ghcr.io/docspring/analytics
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051 # v5.10.0
+        with:
+          images: ${{ env.IMAGE }}
+          tags: type=ref,event=tag
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push
+        uses: docker/build-push-action@d08e5c354a6adb9ed34480a06d141179aa583294 # v7.0.0
+        with:
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          build-args: |
+            MIX_ENV=ce
+            BUILD_METADATA=${{ steps.meta.outputs.json }}

README.md

@@ -1,3 +1,9 @@
+> [!NOTE]
+> This is DocSpring's fork, derived from Plausible Analytics and not affiliated with Plausible Insights OÜ. The
+> `docspring` branch is Plausible CE v3.2.1, modified in November 2026 so the IP block list accepts CIDR ranges.
+> `git log v3.2.1..docspring` lists every change. It's licensed under AGPLv3, like the original, and the original's
+> README follows.
+
 # Plausible Analytics
 
 <p align="center">

lib/plausible_web/templates/layout/_footer.html.heex

@@ -237,7 +237,7 @@
                 <a
                   rel="noreferrer"
                   target="_blank"
-                  href="https://github.com/plausible/analytics"
+                  href="https://github.com/DocSpring/analytics/tree/docspring"
                   class="text-base leading-6 text-gray-300 hover:text-white"
                 >
                   GitHub

lib/plausible_web/templates/layout/_header.html.heex

@@ -138,7 +138,7 @@
                       :if={ce?()}
                       class="!flex justify-between gap-x-12"
                       new_tab
-                      href="https://github.com/plausible/analytics"
+                      href="https://github.com/DocSpring/analytics/tree/docspring"
                     >
                       Github repo
                     </.dropdown_item>