Some shells and wrappers export ZELLIJ=0 or TMUX=0 outside a multiplexer.
A plain truthiness check treated that as 'inside tmux/zellij' and
downgraded iTerm2/Kitty to the ANSI mosaic, so real artwork silently
disappeared. Only meaningful values now count.
SYNC mode was Linux-only: it shelled out to parec. On macOS there is no
PulseAudio, so the analyser always fell back to the drifting stream tap.
Capture with 'ffmpeg -f avfoundation' from a loopback input instead
(BlackHole, Loopback, Soundflower, Multi-Output/Aggregate devices are
auto-detected; SOMAFM_SPECTRUM_DEVICE accepts a name or index). Plain
microphones are never auto-selected.
A loopback that nothing is routed into delivers endless digital silence,
so treat ~6 s of all-zero blocks as a dead monitor and fall back to the
stream tap rather than showing frozen bars. parec handling is unchanged.
macOS has no D-Bus/MPRIS: the audio engine is what the OS media UI talks
to. mpv's Cocoa backend registers with MPRemoteCommandCenter and
MPNowPlayingInfoCenter, so it already publishes the live ICY title and
receives the media keys.
Add a platform-neutral media session (mediasession.py) so the app keeps a
single interface: MprisService on D-Bus platforms, NowPlayingSession on
macOS. Map mpv's NEXT/PREV/PLAY/PLAYONLY/PAUSEONLY/STOP keys onto
script-messages and read them back as client-message IPC events, so the
hardware media keys and Control Center drive the TUI (station changes,
play/pause/stop) instead of fighting it.
--no-mpris (now also --no-media) disables the media keys too. macOS-only
mpv options are gated on sys.platform so the Linux command line is
unchanged; mpv aborts on unknown flags.
The stub dbus_property() returned a bare function, so the read/write
properties (@Volume.setter and friends) raised AttributeError at import
time. That made any host without dbus-next -- macOS, Windows, minimal
containers -- crash before the TUI could start, because app.py imports
this module unconditionally.
Replace the stub with a descriptor that supports .getter()/.setter(), and
give the service a short label for the status bar.
beefcarver