Subj : src/doors/syncdoom/MULTIPLAYER.md
To   : Git commit to main/sbbs/master
From : Rob Swindell (on Debian Linux)
Date : Sat Jun 20 2026 14:04:42

https://gitlab.synchro.net/main/sbbs/-/commit/ff228f292c175e9874aca1f3
Modified Files:
	src/doors/syncdoom/MULTIPLAYER.md
Log Message:
syncdoom: reconcile MULTIPLAYER.md with as-built; add inter-BBS federation design

Bring the multiplayer design doc in line with what shipped: the real [net]
keys (advertise, port_low/high, max_games, max_players=4, idle_timeout, stale,
allow_external), colon section separators ([wadset:*], [net:<hostname>]), the
per-host override, the actual mp_write_registry fields, and the [wads]/
[wadset:*] keys -- marking autoscan/default_iwad/sort/bind/discovery deferred.

Replace the open "scope=public" sketch with a concrete Inter-BBS federation
design: finger-based registry discovery, a trusted-peer IP allowlist, and an
optional out-of-band shared secret (passed on the command line) for dynamic-IP
peers. Co-op first, given lockstep latency across the internet.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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