omarchy-migration-harness

Version	2026.243.0000
Repo	box/omarchy
Base	omarchy

The S5 migration idempotence harness: applies all pending omarchy migrations at BUILD time (a candy run step — the install timeline, as root) and asserts the idempotence: no migrations remain pending after the build-time run (omarchy-migrate –pending exits 1), and a second migrate run is a no-op (exit 0). The deliberately broken migration variant (omarchy-migration-harness-red) adds a migration that never creates its marker — the harness catches it (it stays pending).