himalaya/cairn/changes/pimdir-auto-source/tasks.md

cairn	change
tasks	pimdir-auto-source

Tasks

• pimdir/client.rs: when pimdir.source is unset, probe distinct_sources() and write as the single source, else local.
• Build/test/fmt; verify write-back with no pimdir.source set.
• Fold into cairn/spec/backends.md; log; land.