Steam sets STEAM_COMPAT_DATA_PATH to compatdata/<appid> when launching
a non-Steam shortcut. The prefix was named 'kyber' so Steam was launching
into an empty prefix, causing immediate exit. Change KYBER_COMPAT_ID to
match KYBER_APPID (9900000001) and migrate any existing 'kyber' prefix.
Also handle cmd.exe being a symlink: resolve and copy the real file as
cmd-real.exe, then remove the symlink before writing the shim so we only
affect the Kyber prefix and not Proton globally.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Large stack array WCHAR[4096] triggered a stack probe (__chkstk_ms)
unavailable in -nostdlib builds. Fix: heap-allocate the pass-through
command line buffer, and add -mno-stack-arg-probe as a safety net.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
_wcsicmp is a CRT function unavailable with -nostdlib/-ffreestanding.
Replace with CompareStringOrdinal from kernel32 (always available).
Also fix step numbering (1-2 were still labeled /5 instead of /7),
and remove 2>/dev/null from compile so errors are visible if it fails.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
- Python shortcut script now checks for existing 'Kyber Launcher' entry
and exits early instead of appending a duplicate on each re-run
- Use sudo apt-get directly for mingw-w64 install so the password prompt
works (previous chained || approach suppressed the interactive prompt)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Wine's cmd.exe crashes (0xC0000005) when Kyber calls cmd /c start with
the EA auth URL, on native Linux Steam just as in Wolf. Fix:
1. Compile a minimal cmd shim with mingw-w64 (auto-installed if missing).
The shim intercepts cmd /c start <http url>, writes the URL to
C:\kyber_oauth_url.txt, and exits 0. All other cmd invocations are
passed through to the backed-up cmd-real.exe.
Installed into the Kyber prefix's system32 only — does not affect
other games or Proton globally.
2. Install a watcher script (~/.local/bin/kyber-oauth-watcher.sh) that
polls for the URL file and calls xdg-open to open it in the system
browser. Registered as a systemd user service so it starts on login.
Login flow: Kyber → cmd shim → URL file → watcher → xdg-open → browser
→ EA login → redirect to 127.0.0.1:PORT → Kyber loopback catches code.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
On re-run the installer was trying to overwrite locked files in an existing
prefix, causing repeated Access Denied dialogs. Now check for Kyber.exe
first and skip the installer entirely if it's found.
Also kill any leftover Wine/Proton processes before a fresh install to
avoid file-lock conflicts, and move Windows path resolution to after the
installer/skip decision so it always runs regardless of path taken.
Default fallback path updated to match Kyber's actual install location:
C:\Program Files (x86)\KYBER Launcher\
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
If shortcuts.vdf exists but is not writable, attempt chmod 644 before
writing. If that also fails, print a clear instruction and skip the
shortcut step rather than crashing with a Python traceback.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
The Evergreen bootstrapper (linkid=2124703) requires a second download from
inside the Wine process, which fails in Proton. Switch to the standalone
offline installer (linkid=2135547, ~150 MB) which installs without any
Wine-internal network calls.
Also prefer winetricks if installed — it uses a local cache, handles the
WINEPREFIX env correctly, and is the most reliable method. Fall back to
the standalone download if winetricks is not available.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Instead of erroring when the installer is missing, attempt to fetch it
automatically: first scrape kyber.gg for a direct .exe link, then fall
back to a known CDN path. If download fails, print the manual instruction
and exit cleanly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Kyber uses a PKCE loopback OAuth flow (Maxima): it starts a temporary
HTTP server on 127.0.0.1 and calls cmd /c start to open the EA auth URL
in the system browser. On native Linux, Wine's cmd passes http:// URLs
to xdg-open, which works fine inside Steam's single bwrap layer.
Remove the incorrect claim that WebView2 intercepts qrc:// URIs and is
the only path to completing login. Keep the WebView2 runtime install
(harmless, prevents in-app render errors) but clarify it is not the
login mechanism.
Update end-of-script instructions to describe what the user will actually
see: browser opens EA page, redirects to 127.0.0.1:PORT, tab shows OK or
connection-refused (normal), login completes in Kyber. Add troubleshooting
notes for the two real failure modes: xdg-open not reaching the desktop
(headless/no DISPLAY), and login timeout (loopback server expired).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
The WolfSteam app container already runs seccomp=unconfined + apparmor=unconfined
+ SYS_ADMIN, so the WebView2 CLONE_NEWUSER failure is gated at the HOST level by
kernel.apparmor_restrict_unprivileged_userns=1 (default-on since Ubuntu 23.10),
which overrides the unconfined container. This script relaxes that sysctl (and
the legacy unprivileged_userns_clone) persistently, then probes userns creation
on the host and inside the running container so login can complete without
leaving Wolf.
Co-Authored-By: Claude <noreply@anthropic.com>
Runs Kyber outside Wolf so its embedded WebView2 can initialize without
nested-bwrap blocking CLONE_NEWUSER. Builds the Wine prefix, ensures the
WebView2 Evergreen runtime is installed (the component that intercepts EA's
qrc:// OAuth redirect), registers Kyber as a non-Steam shortcut forced to
Proton Experimental, and notes the Steam Remote Play path for headless boxes.
No fake cmd.exe / Firefox scaffolding needed here.
Co-Authored-By: Claude <noreply@anthropic.com>
Documents the complete Kyber/EA OAuth investigation: root cause is EA's
qrc:// redirect URI which only Kyber's embedded WebView2 can intercept;
WebView2 cannot initialize inside Wolf due to nested bwrap blocking
CLONE_NEWUSER. Script automates all discovered workarounds (fake cmd.exe,
Firefox profile with network.process.enabled: false) and clearly documents
why the real fix is running Kyber outside the Docker container.
Co-Authored-By: Claude <noreply@anthropic.com>
Steam writes localconfig.vdf via atomic rename (write temp + rename over
original). chmod 444 on the file is bypassed by the rename. chmod 555 on
the directory blocks rename-into, preserving the launch option across
Steam restarts.
Also unlocks the directory at the start of step 6 so re-running the
script can update the launch option.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
On native Linux Steam, EA App self-installs via EAappInstaller.exe on first
SWBF2 launch. Link2EA.exe appears in the Wine prefix without any MSI extraction.
Script now checks for Link2EA.exe first and skips steps 2-3 (MSI locate +
extract) if EA Desktop is already installed, proceeding directly to writing
registry fix files and the launch wrapper.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
The MSI is bundled in steamapps/common with the game files. The script
was only checking drive_c (where Steam copies it after a launch), causing
a false "not found" error before the user had launched the game.
Now searches steamapps/common and all of steamapps as fallbacks, reports
which path it found the MSI at. Also remove stale references to the
"Origin is not installed" error which no longer appears.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Both scripts now detect and install msitools if missing, supporting
apt-get (Debian/Ubuntu), dnf (Fedora), and pacman (Arch). Falls back
to a clear error if the package manager is not recognised.
Remove msitools from manual prerequisites in the doc.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Both scripts now download and install GE-Proton10-34 if not already present:
- setup-swbf2-linux.sh: installs to ~/.steam/root/compatibilitytools.d/
- setup-swbf2-wolf.sh: installs into the WolfSteam container via docker cp + tar
Both pause after install and prompt the user to set GE-Proton in Steam
(Compatibility → Force) before continuing, since that step requires the GUI.
Update docs to reflect GE-Proton is now handled automatically.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Two self-contained scripts for getting SWBF2 (2017, AppID 1237950) working
with GE-Proton on Linux — no dependency on the ubuntu-post-install framework.
setup-swbf2-wolf.sh — for Wolf/Games-on-Whales + Moonlight streaming
setup-swbf2-linux.sh — for native Linux Steam (no Docker)
Both implement the same core fix:
- msiextract bypass for JunoConfigureRegistry Wine incompatibility
- EA Desktop files copied into Wine prefix from extracted MSI
- link2ea_fix.reg + ea_services.reg written to drive_c
- Launch wrapper that imports .reg files via Proton on every launch
(direct system.reg edits are overwritten by wineserver on shutdown)
Wolf version also handles Docker cp, container paths, STEAM_UNIX_SOCKET,
and localconfig.vdf directory locking inside the Wolf state folder.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
Claude