Time: chrony replaces timesyncd, with NICT/JP-pool NTP primary and gpsd
SHM as an offline-only refclock; makestep any time and fake-hwclock
cover the battery-less RTC.
Antenna: the modem cleared the supply again after the service set it,
so the service is now idempotent, configurable (ANTENNA=active|passive,
passive keeps it off) and re-checked by a 30 s timer.
gpsd: a gpsdctl udev hook spawned a stray gpsd without -n at boot that
blocked the real service; gpsd.service now binds to the NMEA device.
GNSS: CGNSSMODE=15 (GLONASS, BeiDou, Galileo, QZSS) and all supported
NMEA sentences; both persist across a modem reset. Adds sim7600-at.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mikkeli
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