ADR-0015 framed Gitea Actions as a level-2 implementation explicitly
slated for a GitLab migration within 6-18 months. That window opens
now: vm-gitlab is provisioned, the team is about to scale, and the
Gitea-specific friction points documented inline in .gitea/workflows/
ci.yml (paywalled gitleaks-action, github.com-bound trivy-action,
manual curl+tar install dance) are accumulating maintenance tax.
ADR-0028 records the platform shift. Architectural principles from
ADR-0015 (trunk-based + squash, all-gates-blocking, thin YAML over
portable scripts in pnpm + Nx, on-prem runners, Conventional Commits)
carry over unchanged - only host / pipeline-file grammar / runner type
/ scan tooling change. Decision-only; 4-phase migration (mirror,
parallel pipelines, cutover, cleanup) lands in follow-up PRs.
Renumbering: ADR-0028 was a placeholder reference for the future
Pleiades + Acteurs+ sync ADR. That ADR shifts to 0029; the 25 link
references across ADR-0026 and ADR-0027 update in lockstep. CLAUDE.md
roll-up adjusted accordingly.
Status: proposed. Accept will be a separate small PR per the established
pattern (see #219 for ADR-0026/0027 acceptance).
Julien Gautier