migrate to github

.github/FUNDING.yml

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+liberapay: etkecc

.github/workflows/workflow.yml

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+name:
+on:
+  push:
+    branches: [ "main" ]
+env:
+  borgmatic_version: 1.8.13
+  borg_version: 1.2.8
+permissions:
+  checks: write
+  contents: write
+  packages: write
+  pull-requests: read
+jobs:
+  build-publish:
+    name: Build and Publish
+    runs-on: self-hosted
+    strategy:
+      matrix:
+        postgres_version: [ "", "14", "15", "16" ]
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to ghcr.io
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+            registry.etke.cc/${{ github.repository }}
+          tags: |
+            type=raw,value=latest,enable=${{ matrix.postgres_version == '' }}
+            type=raw,value=${{ matrix.postgres_version }}-${{ env.borg_version }}-${{ env.borgmatic_version }},enable=${{ github.ref_name == 'main' }}
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            POSTGRES_VERSION=${{ matrix.postgres_version }}
+            BORGMATIC_VERSION=${{ env.borgmatic_version }}
+            BORG_VERSION=${{ env.borg_version }}

README.md

@@ -1,5 +1,4 @@
 # borgmatic
-[![Matrix](https://img.shields.io/matrix/discussion:etke.cc?logo=matrix&server_fqdn=matrix.org&style=for-the-badge)](https://matrix.to/#/#discussion:etke.cc) [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/etkecc)
 
 borgmatic is simple, configuration-driven backup software for servers and workstations. Protect your files with client-side encryption. Backup your databases too. Monitor it all with integrated third-party services.