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feat(nixpak): sandbox Steam and Heroic in ~/Gaming (#520)
* feat(nixpak): sandbox Steam and Heroic in ~/Gaming idols-ai stops preserving ~/.local/share/Steam, ~/.steam, ~/.config/heroic and their game data, which must be moved into ~/Gaming before deploying. Assisted-by: DeepSeek Harness (deepseek-flash) * refactor(nixpak): replace steam-fix.nu with sandboxed protontricks Assisted-by: DeepSeek Harness (claude-opus-5-5) * fix(nixpak): hide host documents and GTK config from game sandboxes Assisted-by: DeepSeek Harness (claude-opus-5-5) * docs(ai): locate the Steam library under ~/Gaming Assisted-by: DeepSeek Harness (claude-opus-5-5) * fix(umu-game): confine writes to ~/Gaming and keep foreign entries Assisted-by: DeepSeek Harness (claude-opus-5-5) * fix(nixpak): keep Steam and Heroic in the application launcher The wrappers only carried bin/, so neither launcher had a desktop entry after replacing programs.steam. Assisted-by: DeepSeek Harness (deepseek-flash) * fix(nixpak): give the game sandboxes a fontconfig that sees CJK fonts Steam rendered Chinese as tofu: the FHS layers build their own /etc/fonts, whose config lists only DejaVu and the XDG font directory, so neither the host fonts nor the FHS /usr/share/fonts were ever scanned. Point FONTCONFIG_FILE at a small config that includes /usr/share/fonts, and ship WenQuanYi Zen Hei and Noto Sans CJK in all three FHS layers. Assisted-by: DeepSeek Harness (deepseek-flash) * fix(nixpak): grant the game launchers a StatusNotifier tray icon Steam and Heroic register a tray icon over D-Bus, and the game sandboxes granted no StatusNotifierWatcher access, so the desktop shell had nothing to show for them. Enable desktopIntegration.tray for all three launchers and teach the policy suites to expect it. Assisted-by: DeepSeek Harness (deepseek-flash) * fix(nixpak): drop the duplicate host CJK font and tidy the font overrides Steam reads the fonts inside its own FHS layer, so the system-wide wqy_zenhei added for it no longer serves any sandbox. Give gaming-policy its own comment for FONTCONFIG_FILE instead of leaving it under the compat-tool one, make the desktop-base value a default, and note the SNI tray grant in the README table. Assisted-by: DeepSeek Harness (deepseek-flash)
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@@ -35,7 +35,7 @@ A setting that works around a bug or a hardware quirk.
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| WA-010 | Insta360 Link reset-resume quirk (`usbcore.quirks=2e1a:4c01:b`) — `hosts/idols-ai/default.nix` | the camera stays enumerated with a stalled UVC endpoint after resume | Drop after the Insta360 firmware or the kernel `uvcvideo` fixes it | 2026-08-01 | on kernel or firmware change | active |
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| WA-011 | Kernel module blacklist (`esp4`, `esp6`, `rxrpc`) — `hardening/kernel-hardening.nix` | attack surface for the Dirty Frag LPE (CVE-2026-43284 / CVE-2026-43500) | Kept as defence in depth; drop only if something needs those modules | 2026-10-03 | rarely | active |
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| WA-018 | user-owned `~/.ssh/config` + disabled systemd ssh-proxy include — `home/base/tui/ssh.nix`, `modules/nixos/base/ssh.nix` | bwrap exposes root-owned store files as `nobody` | Drop once sandboxes preserve store ownership | 2026-10-06 | when sandbox layout changes | active |
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| WA-019 | programs.steam.extraCompatPackages = [ pkgs.dwproton-bin pkgs.proton-ge-bin ] — modules/nixos/desktop/gaming.nix | ACE games fail on GE/mainline Proton, work with DW-Proton | Drop once mainline or GE-Proton runs these games (GE-Proton#433) | 2026-10-07 | on Proton/GE bump | active |
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| WA-019 | DW-Proton for Steam and umu — `hardening/nixpaks/modules/gaming-policy.nix`, `hardening/nixpaks/umu.nix`, `modules/nixos/desktop/gaming.nix` | ACE games fail on GE/mainline Proton, work with DW-Proton | Drop once mainline or GE-Proton runs these games (GE-Proton#433) | 2026-10-07 | on Proton/GE bump | active |
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| WA-024 | Wi-Fi power saving disabled (`networking.networkmanager.wifi.powersave = false`) — `hosts/12kingdoms-shoukei/apple-silicon.nix` | On this BCM4378/brcmfmac laptop, powersave is a common source of intermittent ASSOC-REJECT / authentication-timeout failures; NetworkManager then mistakes the failure for a bad key, re-prompts, and the client (Noctalia, nmtui, nmcli) saves the answer as a duplicate `<SSID> 1` profile | Drop once the kernel carries the brcmfmac `port_authorized` fix (WA-025) and no association failures remain | 2026-10-07 | watch `journalctl -u wpa_supplicant` for ASSOC-REJECT / authentication timeout | active |
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| WA-026 | guest deploys run `installOnHost` then `systemctl restart microvm@<guest>` on the physical host — `Justfile`, `lib/genMicrovmGuestModule.nix` | this is the fallback that microvm.nix's own `microvm.deploy.rebuild` uses when it cannot switch in place (`doc/src/ssh-deploy.md`), so only the in-place switch is lost: its sshSwitch step runs `nix-store --load-db` against the guest's read-only virtiofs `/nix/store` and dies on `cannot remount "/nix/store" writable` (nix 2.35) | Switch guests in place with sshSwitch once microvm.nix or nix handles a read-only store. Until then, note that a host activation re-links `/var/lib/microvms/<guest>/current` to the runner baked into the host's system, so switch the host after installing a guest from a newer tree | 2026-10-09 | on microvm.nix or nix bump | active |
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| WA-028 | GitHub SSH pinned to IPv4 (`AddressFamily = "inet"`) — `home/base/tui/ssh.nix` | a v6 fake AAAA for `ssh.github.com` from the `2001:2::/64` pool (WA-029) is not proven on the 443 SSH tunnel yet | Drop once the v6 fake-ip pool is proven for GitHub SSH | 2026-10-10 | on a mihomo bump or a v6 pool change | active |
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