[Unit]
Description=MemPalace backup (hot — zero downtime, SQLite online-backup API)
Documentation=file:%h/mempalace-toolkit/docs/backup-and-recovery.md
# Better a skipped run than a run that creates an empty palace somewhere and
# then dutifully backs it up.
ConditionPathExists=%h/.mempalace/palace

[Service]
Type=oneshot
# Hot mode never stops mempalace-serve. Both SQLite files are copied through the
# online-backup API (transactionally consistent, WAL-aware); the HNSW index
# segments are copied live and may lag a few records. That is acceptable because
# SQLite is authoritative — see docs/backup-and-recovery.md §3.
ExecStart=%h/.local/bin/mempalace-backup --keep 7
# Backups are not urgent; the palace server and any running mine are. Yielding
# CPU and I/O keeps a 4-second backup from lengthening someone's interactive
# search.
Nice=10
IOSchedulingClass=idle