commit b083b6249513e199d3f12a0fbe69dab39d12fbca
Author: Dominik Agres <dominik@agres.online>
Date:   Mon Jun 22 23:56:48 2026 +0200

    initial image

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
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--- /dev/null
+++ b/.github/workflows/build.yml
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+name: build
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+env:
+  IMAGE: ghcr.io/agresdominik/texlive
+
+jobs:
+  build:
+    name: build ${{ matrix.arch }}
+    runs-on: ${{ matrix.runner }}
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { runner: ubuntu-24.04, arch: amd64 }
+          - { runner: ubuntu-24.04-arm, arch: arm64 }
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-buildx-action@v3
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: linux/${{ matrix.arch }}
+          push: true
+          tags: ${{ env.IMAGE }}:${{ github.sha }}-${{ matrix.arch }}
+          cache-from: type=gha,scope=${{ matrix.arch }}
+          cache-to: type=gha,mode=max,scope=${{ matrix.arch }}
+
+  manifest:
+    name: merge manifest
+    needs: build
+    runs-on: ubuntu-24.04
+    permissions:
+      packages: write
+    steps:
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create multi-arch manifests
+        run: |
+          for tag in latest "${GITHUB_SHA}"; do
+            docker buildx imagetools create -t "${IMAGE}:${tag}" \
+              "${IMAGE}:${GITHUB_SHA}-amd64" \
+              "${IMAGE}:${GITHUB_SHA}-arm64"
+          done
diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+# LaTeX build artifacts
+*.aux
+*.bbl
+*.bcf
+*.blg
+*.fdb_latexmk
+*.fls
+*.lof
+*.log
+*.lot
+*.out
+*.run.xml
+*.synctex.gz
+*.toc
+*.nav
+*.snm
+*.vrb
+*.xdv
+
+# Output (uncomment if you don't want PDFs tracked)
+# *.pdf
diff --git a/Dockerfile b/Dockerfile
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--- /dev/null
+++ b/Dockerfile
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+FROM debian:trixie-slim
+
+# texlive-full already pulls latexmk + biber; listed explicitly so intent is clear.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        texlive-full \
+        latexmk \
+        biber \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /data
+ENTRYPOINT ["latexmk"]
diff --git a/LICENSE b/LICENSE
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index 0000000..0fa0130
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Dominik Agres
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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index 0000000..7a2318d
--- /dev/null
+++ b/README.md
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+# texlive
+
+A "batteries-included" LaTeX toolchain in a Docker image: `texlive-full` +
+`latexmk` + `biber` on `debian:trixie-slim`. Built for academic writing —
+heavy math, `biblatex`/`biber`, TikZ/pgfplots, German `babel` + `fontspec`.
+
+Multi-arch: `linux/amd64` and `linux/arm64`, so it runs natively on an Asahi
+Mac (arm64) and an Arch desktop (amd64) alike.
+
+```
+ghcr.io/agresdominik/texlive:latest
+```
+
+## Pull
+
+```sh
+docker pull ghcr.io/agresdominik/texlive:latest
+```
+
+Docker picks the right arch from the manifest automatically.
+
+## Use
+
+The image's entrypoint is `latexmk` with `WORKDIR /data`, so anything after
+the image name is passed straight to `latexmk`.
+
+### `tex` wrapper
+
+Mounts the current directory into the container and fixes file ownership so
+output isn't root-owned (`--user` + a writable `HOME` for TeX's cache).
+
+zsh function — drop into `~/.zshrc`:
+
+```zsh
+tex() {
+  docker run --rm \
+    --user "$(id -u):$(id -g)" \
+    -e HOME=/tmp \
+    -v "$PWD:/data" \
+    ghcr.io/agresdominik/texlive:latest "$@"
+}
+```
+
+Or use the standalone [`tex`](./tex) script — put it on your `$PATH`:
+
+```sh
+install -m755 tex ~/.local/bin/tex
+```
+
+Then:
+
+```sh
+tex -pdf main.tex      # build
+tex -pvc main.tex      # watch + rebuild
+tex -C                 # clean aux files
+```
+
+## How the multi-arch build works
+
+`.github/workflows/build.yml` builds **natively per arch** — no QEMU:
+
+1. A matrix `build` job runs once on `ubuntu-24.04` (amd64) and once on
+   `ubuntu-24.04-arm` (arm64). Each builds for its own platform and pushes a
+   per-arch tag: `:<sha>-amd64`, `:<sha>-arm64`.
+2. A final `manifest` job merges those into single multi-arch tags with
+   `docker buildx imagetools create`, publishing both `:latest` and `:<sha>`.
+
+Auth is `GITHUB_TOKEN` with `packages: write`, logging in to `ghcr.io`.
+Triggers: push to `main` and manual `workflow_dispatch`.
+
+## Trimming the image later
+
+`texlive-full` is large (multiple GB). If size becomes a problem, swap the
+Debian package for a custom TeX Live install driven by a `texlive.profile`,
+selecting `scheme-full` down to e.g. `scheme-medium` plus only the collections
+you need (`collection-latexextra`, `collection-bibtexextra`,
+`collection-pictures`, `collection-langgerman`, `collection-fontsrecommended`,
+…). Build with `install-tl --profile texlive.profile`, then `tlmgr install`
+any stragglers. Keep `scheme-full` until the size actually hurts.
+
+## License
+
+MIT — see [LICENSE](./LICENSE).
diff --git a/tex b/tex
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+++ b/tex
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+#!/bin/sh
+# Run latexmk from the texlive image against the current directory.
+#   tex -pdf main.tex
+# --user + HOME=/tmp keep build artifacts owned by you, not root.
+exec docker run --rm \
+    --user "$(id -u):$(id -g)" \
+    -e HOME=/tmp \
+    -v "$PWD:/data" \
+    ghcr.io/agresdominik/texlive:latest "$@"