main baseline: github/main 4914cdd98f3d15ab2ddef34f0af70d3d68a2d8e5
$ node apps/server/src/bin.ts service install --base-dir /home/user/service-verification (on main)
Installed T3 Code service with t3@0.1.3.
Logs: /home/user/service-verification/userdata/logs/boot-service.log
$ main installed unit resource directives
ExecStart=/home/user/service-verification/runtime/versions/0.1.3/t3 __service-launcher
OOMPolicy=continue
CPUWeight=1000
IOWeight=1000
ManagedOOMPreference=avoid

pr head: 3f1a472b72ec06dc3a920ff4ce959c68e0f45c83
$ service install without downgrade permission
T3 Code service
  Status: installed · t3@0.1.3 (newer than this t3@0.1.2 CLI)
  Unit: /home/user/.config/systemd/user/t3code.service
  Logs: /home/user/service-verification/userdata/logs/boot-service.log
  Next: Run `t3 update 0.1.3` to match it, or pass `--allow-downgrade` to `t3 service install` explicitly.
$ node apps/server/src/bin.ts service install --base-dir /home/user/service-verification --allow-downgrade
Updated T3 Code service with t3@0.1.2.
Logs: /home/user/service-verification/userdata/logs/boot-service.log
$ installed unit resource directives
ExecStart=/home/user/service-verification/runtime/versions/0.1.2/t3 __service-launcher
OOMPolicy=continue
CPUWeight=1000
IOWeight=1000
$ systemd-analyze --user verify --man=no ~/.config/systemd/user/t3code.service
exit=0
$ node apps/server/src/bin.ts service status --base-dir /home/user/service-verification
T3 Code service
  Status: installed · t3@0.1.2
  Unit: /home/user/.config/systemd/user/t3code.service
  Logs: /home/user/service-verification/userdata/logs/boot-service.log
$ node apps/server/src/bin.ts service restart --base-dir /home/user/service-verification
Restarted the T3 Code service on t3@0.1.2.
MainPID=25403
OOMPolicy=continue
CPUWeight=1000
IOWeight=1000
ManagedOOMPreference=none
ActiveState=active
$ node apps/server/src/bin.ts service install --base-dir /home/user/service-verification
T3 Code service is already installed with t3@0.1.2 (/home/user/.npm-global/lib/node_modules/t3/bin/t3.mjs).

limits: Ubuntu 24.04; no uresourced binary, Fedora/GNOME CPU loop and memory-pressure handling not exercised.