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Debian/Ubuntu APT build system with GitHub Actions and Cloudflare R2 — the apt-world sibling of github-copr.

Part of the TunaOS ecosystem.

Why this exists​

TunaOS's grouper variant (Ubuntu 26.04 bootc) needs the Wayland-native XFCE stack — xfwl4 (the Rust/Smithay compositor) plus the Wayland-adapted xfce4 components (panel, session, settings, thunar, xfdesktop...) — the same stack github-copr builds as RPMs for EL10. Ubuntu's own archives don't carry these yet, so we build and host .debs ourselves, same tiered-dependency model as github-copr:

  • sbuild (not mock) builds each package in a clean, cached chroot.
  • reprepro manages the APT repository (signed, incremental).
  • GitHub Actions drives tiered builds — a package only builds once every package in its tier's dependencies is already in the repo.
  • Cloudflare R2 hosts the resulting repo, served from deb.tunaos.org (mirrors repo.tunaos.org's RPM hosting).

Structure​

  • src/xfce-wayland/<package>/debian/ — Debian packaging (control, rules, changelog, copyright, install, source/format) per component, orbiting each package's real upstream source (fetched via debian/watch / a pinned tarball or git commit, same as github-copr's Source0 pins).
  • build-order.yml — tiered dependency manifest (identical schema in spirit to github-copr's; a package's tier can't build until every earlier tier is in the repo).
  • sbuild/ — sbuild chroot config (Ubuntu 26.04 noble+1 / resolute).
  • scripts/build-chain.sh — builds one package via sbuild, updates the local repo via reprepro.
  • .github/workflows/ — lint/validate, incremental (PR) build, and the full tiered distributed build + R2 publish.

Status​

Bootstrapping — xfwl4 is the first package (proves the pipeline: a Rust/cargo build wrapped in a .deb, no upstream Debian packaging to crib from since it's a brand-new upstream project). The rest of the stack follows the same tier order as github-copr's build-order-xfce.yml.

🐟 Part of the Tuna OS ecosystem.