Bug surfaced live on .228 2026-05-02 — every backend Quadlet unit
(lnd, electrumx, fedimint, btcpay-server, mempool-api, bitcoin-knots)
hit systemd's default 90s start timeout because Notify=healthy makes
systemctl wait for the first green health probe, but
HealthInterval=30s × HealthRetries=3 = 90s minimum even on a healthy
service. Race: timeout fires the moment the third probe MIGHT succeed.
Result was three different post-states (inactive+running, failed+missing,
inactive+stopped) depending on whether systemd's ExecStopPost ran
podman rm before the orchestrator's adoption logic re-grabbed the
container.
Fix: when health is set, render TimeoutStartSec=600 (10 minutes) into
[Service]. Long enough for slow-starting backends (electrumx index
replay, lnd wallet unlock) without being so long that a truly stuck
unit hangs forever. Companions stay unchanged (no health → no override,
default 90s applies).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>