The 'external drive' turned out to be a CIFS-mounted Hetzner storage
box — SQLite cannot run on a network mount (WAL shared memory and
locking break), and the live DB is only ~7MB anyway. So: the hot
database stays on the local volume, and a nightly VACUUM INTO snapshot
(transactionally consistent, a plain sequential file write — perfect
for CIFS) lands in /data/archive, which compose binds to the storage
box via HOST_ARCHIVE_DIR. 14-day retention, plus a snapshot at boot.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
NilsBriggen
ac1de66e6d