# CLAUDE.md

Crow CI pipelines (`.crow/`) and local tooling (`local/`) that build CRAN binary packages (incl. Alpine/musl) and upload them to Backblaze B2.

## Conventions

- **PRs:** the remote is Forgejo on `codefloe.com`; use `fj -H codefloe.com` (not `gh`).
- **Storage:** Backblaze B2 bucket `devxy-r-builds` (endpoints configured in the `.crow/` pipelines).

## Gotchas

- **B2 requires authentication for the list-bucket API.** Anonymous GET only works for individual public-read objects — an empty listing means missing credentials, not an empty bucket.
- Weekly-rebuild pipelines run for hours; watch them as background tasks and fetch Crow logs yourself instead of having the user paste progress.
- musl builds of packages with bundled native deps (e.g. RcppParallel/TBB) recur as failures; check for an existing patch before re-deriving a fix.