Ship a launchd user agent plist alongside the existing systemd and
cron templates so macOS users can schedule mempalace-session without
falling back to cron. launchd is the macOS-native equivalent of a
systemd user timer: same scheduling model, same log conventions, same
single-instance guarantees.
- contrib/launchd/se.jordbo.mempalace-session.plist:
- Label uses reverse-DNS from the jordbo.se domain for consistency
with other user-installed launchd jobs; fork the prefix if reusing
this template in a different org.
- ProgramArguments points at /Users/USER/.local/bin/mempalace-session
(USER is substituted at install time, same pattern as
contrib/cron/).
- EnvironmentVariables.PATH covers ~/.local/bin, Apple Silicon
Homebrew, Intel Homebrew, and system defaults — launchd agents
get a minimal PATH by default and the wrapper needs to find
mempalace + python3.
- StartCalendarInterval matches systemd unit's schedule: Monday
03:00 local.
- RunAtLoad=false — load shouldn't trigger a run; schedule does.
- ProcessType=Background + LowPriorityIO=true + Nice=10 mirror
the systemd unit's Nice=10 + IOSchedulingClass=idle. macOS's
automatic App Nap and resource throttling for Background jobs
yields to interactive work cleanly.
- ExitTimeOut=7200 matches systemd's TimeoutStartSec=7200.
- StandardOut/ErrorPath under ~/Library/Logs/ so Console.app
surfaces them.
- contrib/README.md gains a full launchd section:
- Caveat table comparing to systemd (Persistent=true isn't quite
matched; RandomizedDelaySec has no equivalent; overlap prevention
is automatic).
- Install recipe using launchctl bootstrap (modern) with a fallback
note for legacy launchctl load -w on older macOS.
- Verify section shows launchctl list, launchctl print, log tails,
and launchctl kickstart for manual testing.
- Uninstall via launchctl bootout.
- Chooser table updated: macOS now explicitly points at launchd,
not cron.
- ARCHITECTURE.md §5, SKILL.md Quick automation pitch, and README.md
Keeping it fresh section all updated to mention the three scheduler
options and give per-platform quick-starts.
Plist XML validated with plistlib.
Joakim Persson
720245e010