Only .config/retroarch was mounted, so Docker still had to auto-create
.config itself (one level up) as an intermediate directory for that
bind mount to attach under — same root:root mode-755 stub problem as
before, just one level higher. Confirmed live: RetroArch got past its
own config.toml write this time, but then crashed on:
mkdir: cannot create directory '/home/retro/.config/waybar': Permission denied
(Waybar/Sway — the on-screen overlay GoW's app-runner wrapper spawns
for every app, not RetroArch-specific.)
Fix: add a second mount at /home/retro/.config itself, backed by a new
retro-home/ host directory, alongside the existing more-specific
.config/retroarch mount (Docker resolves nested/overlapping bind mounts
correctly regardless of list order). Now nothing under .config is a
Docker-auto-created stub — it's real host-backed content throughout,
so anything an app writes directly under .config (Waybar, Sway state,
RetroArch's own non-cores/shaders/overlays files) just works.
Also force retro-home/ and the existing retroarch/ dir to 1000:1000
explicitly after the general ACTUAL_USER chown — the GoW app
containers' 'retro' user is hardcoded to uid 1000 regardless of what
uid the host account installing this actually has, so relying on the
general chown alone silently breaks this fix on any box where those
don't match.
Claude
0ba83212d1