Claude
66cda2c6ed
The actual Kyber executable installed by the NSIS installer is kyber_launcher.exe, not Kyber.exe. Update the find pattern and the default fallback path accordingly. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01D8ckUJQtj1pH8jtAddBDZs
568 lines
24 KiB
Bash
Executable File
568 lines
24 KiB
Bash
Executable File
#!/bin/bash
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# setup-kyber-linux.sh — Install the Kyber Launcher for SWBF2 (2017) on a
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# native Linux Steam machine (headless or desktop) with Proton Experimental.
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#
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# Kyber is a community multiplayer client for Star Wars Battlefront II (2017)
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# after EA shut down the official servers. It is a Windows app (Flutter/Rust).
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#
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# ── How Kyber's EA login actually works ────────────────────────────────────
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#
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# Kyber uses the "Maxima" OAuth PKCE flow:
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# 1. Kyber starts a temporary HTTP server on 127.0.0.1 (dynamic port ~41413+)
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# 2. It calls cmd /c start "" "<EA auth URL>" to open a browser
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# 3. You log in on the EA page; EA redirects to 127.0.0.1:PORT/?code=...
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# 4. Kyber's HTTP server catches the code and exchanges it for tokens
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#
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# On native Linux, Wine's built-in cmd.exe passes http(s):// URLs to
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# xdg-open, which launches your system browser. Steam's pressure-vessel
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# (bwrap) sandbox does NOT block xdg-open on native Linux — xdg-open reaches
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# the host desktop and the browser opens normally.
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#
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# After you approve the EA login page the browser is redirected to
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# 127.0.0.1:PORT (Kyber's loopback server). The browser hits that address,
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# Kyber receives the auth code, and login completes. No special shims needed.
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#
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# ── Why NOT to run Kyber inside Wolf / Games-on-Whales ─────────────────────
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#
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# Wolf runs Docker + Proton's bwrap nested. The double-sandbox blocks
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# CLONE_NEWUSER which breaks WebView2, AND the inner bwrap prevents
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# xdg-open from reaching the host display. Kyber's loopback redirect to
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# 127.0.0.1:PORT also fails inside the container network stack. Use native
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# Linux Steam instead — it's the supported path.
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#
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# ── WebView2 ───────────────────────────────────────────────────────────────
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#
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# WebView2 is NOT required for the login flow (Maxima handles that). This
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# script still installs the WebView2 Evergreen runtime because Kyber may use
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# it for in-app content rendering. Installing it causes no harm and prevents
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# any fallback-related error dialogs inside Kyber.
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#
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# ── Headless note ──────────────────────────────────────────────────────────
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#
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# On a headless GPU box use Steam Remote Play: install Steam, configure a
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# virtual/dummy display so Steam has something to render to, add Kyber +
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# SWBF2, then connect with the Steam Link app from any device.
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# This script warns if no display is detected at setup time.
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#
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# ── Prerequisites ──────────────────────────────────────────────────────────
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# a. Steam installed and launched at least once (native, not Flatpak ideally
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# — Flatpak works but paths differ; this script handles both).
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# b. SWBF2 (AppID 1237950) installed and working with Proton Experimental
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# (run setup-swbf2-linux.sh first).
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# c. KyberLauncher.exe downloaded from https://kyber.gg saved to
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# ~/Downloads/KyberLauncher.exe (or pass the path as $1).
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#
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# ── Usage ──────────────────────────────────────────────────────────────────
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# chmod +x setup-kyber-linux.sh
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# ./setup-kyber-linux.sh [/path/to/KyberLauncher.exe]
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set -euo pipefail
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KYBER_INSTALLER="${1:-$HOME/Downloads/KyberLauncher.exe}"
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KYBER_APPID="9900000001" # non-Steam shortcut appid
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KYBER_COMPAT_ID="$KYBER_APPID" # prefix dir must match appid for Steam to find it
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echo "=== Kyber Launcher — Native Linux Steam Setup ==="
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echo ""
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# ── Locate Steam home ──────────────────────────────────────────────────────
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find_steam_home() {
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for candidate in \
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"$HOME/.steam/steam" \
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"$HOME/.local/share/Steam" \
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"$HOME/.var/app/com.valvesoftware.Steam/.steam/steam"; do
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if [ -d "$candidate/steamapps" ]; then
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echo "$candidate"
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return 0
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fi
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done
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return 1
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}
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STEAM_HOME=$(find_steam_home) || {
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echo "ERROR: Steam home not found. Install Steam and launch it once."
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exit 1
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}
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echo "Steam home: $STEAM_HOME"
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# ── Verify / download Kyber installer ─────────────────────────────────────
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if [ ! -f "$KYBER_INSTALLER" ]; then
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echo ""
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echo "Kyber installer not found at: $KYBER_INSTALLER"
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echo "Downloading from kyber.gg API..."
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mkdir -p "$(dirname "$KYBER_INSTALLER")"
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KYBER_ZIP="/tmp/kyber-installer-$$.zip"
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KYBER_DL_URL="https://api.prod.kyber.gg/download/kyber-installer-win64.zip"
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if curl -L --progress-bar -o "$KYBER_ZIP" "$KYBER_DL_URL" && [ -s "$KYBER_ZIP" ]; then
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# Extract the installer .exe from the zip
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_exe=$(unzip -Z1 "$KYBER_ZIP" 2>/dev/null | grep -i '\.exe$' | head -1)
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if [ -z "$_exe" ]; then
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echo "ERROR: No .exe found inside the downloaded zip."
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rm -f "$KYBER_ZIP"
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exit 1
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fi
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unzip -p "$KYBER_ZIP" "$_exe" > "$KYBER_INSTALLER"
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rm -f "$KYBER_ZIP"
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echo "Extracted: $(basename "$_exe") → $KYBER_INSTALLER"
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else
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echo ""
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echo "ERROR: Download failed."
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echo "Download the zip manually from https://kyber.gg, extract the .exe, then:"
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echo " $0 /path/to/KyberLauncher.exe"
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rm -f "$KYBER_ZIP"
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exit 1
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fi
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fi
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echo "Kyber installer: $KYBER_INSTALLER"
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# ── Locate Proton Experimental ─────────────────────────────────────────────
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# Kyber's WebView2 is best supported on Proton Experimental (newest Wine +
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# the most complete WebView2/Edge compatibility shims). GE-Proton also works,
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# but Experimental tends to have the freshest fixes for Chromium sandboxing.
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PROTON_DIR=$(find "$STEAM_HOME/steamapps/common" -maxdepth 1 -type d \
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-iname "Proton Experimental" 2>/dev/null | head -1)
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if [ -z "$PROTON_DIR" ]; then
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PROTON_DIR=$(find "$STEAM_HOME/steamapps/common" -maxdepth 1 -type d \
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-iname "Proton*" 2>/dev/null | sort | tail -1)
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fi
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if [ -z "$PROTON_DIR" ] || [ ! -x "$PROTON_DIR/proton" ]; then
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echo ""
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echo "ERROR: Proton not found under $STEAM_HOME/steamapps/common."
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echo " In Steam → Settings → Compatibility, install Proton Experimental,"
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echo " then re-run this script."
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exit 1
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fi
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echo "Proton: $PROTON_DIR"
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# ── Headless display check ─────────────────────────────────────────────────
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# WebView2 (and Kyber's Flutter UI) need a display to render to. On a headless
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# box with no X/Wayland session, Kyber's window has nowhere to draw.
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if [ -z "${DISPLAY:-}" ] && [ -z "${WAYLAND_DISPLAY:-}" ]; then
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echo ""
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echo "NOTE: No DISPLAY or WAYLAND_DISPLAY detected (headless box)."
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echo " For Steam Remote Play you need a virtual display so Steam can"
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echo " render. Options:"
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echo " - Configure your GPU driver's dummy/virtual display (recommended"
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echo " for hardware-encoded Remote Play), OR"
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echo " - Run this whole setup under Xvfb for the install step only:"
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echo " xvfb-run -a $0 $KYBER_INSTALLER"
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echo ""
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echo " Continuing the install (the prefix can be built headless), but you"
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echo " must have a real or virtual display when you actually launch Kyber."
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echo ""
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fi
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# ── Build Kyber Wine prefix and run the installer ──────────────────────────
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echo ""
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echo "[1/7] Installing Kyber into Wine prefix..."
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KYBER_PFX="$STEAM_HOME/steamapps/compatdata/$KYBER_COMPAT_ID"
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OLD_PFX="$STEAM_HOME/steamapps/compatdata/kyber"
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# Migrate old 'kyber' prefix to the numeric appid directory Steam expects
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if [ -d "$OLD_PFX" ] && [ ! -d "$KYBER_PFX" ]; then
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echo " Migrating prefix: compatdata/kyber → compatdata/$KYBER_COMPAT_ID"
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mv "$OLD_PFX" "$KYBER_PFX"
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elif [ -d "$OLD_PFX" ] && [ -d "$KYBER_PFX" ]; then
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echo " Removing old compatdata/kyber (numeric prefix already exists)..."
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rm -rf "$OLD_PFX"
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fi
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export STEAM_COMPAT_DATA_PATH="$KYBER_PFX"
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export STEAM_COMPAT_CLIENT_INSTALL_PATH="$STEAM_HOME"
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export PROTON_NO_ESYNC=1
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# Check if Kyber is already installed — skip the installer if so.
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KYBER_EXE_PATH=$(find "$KYBER_PFX/pfx" -iname "kyber_launcher.exe" 2>/dev/null | head -1)
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if [ -n "$KYBER_EXE_PATH" ]; then
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echo " Kyber.exe already present — skipping installer."
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else
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mkdir -p "$KYBER_PFX"
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# Kill any leftover Wine/Proton processes from a previous attempt.
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pkill -9 -f "compatdata/$KYBER_COMPAT_ID" 2>/dev/null || true
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sleep 1
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echo " Running installer (silent)..."
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# /S = NSIS silent flag; if Kyber's installer ignores it a GUI appears.
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"$PROTON_DIR/proton" run "$KYBER_INSTALLER" /S 2>/dev/null || \
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"$PROTON_DIR/proton" run "$KYBER_INSTALLER" 2>/dev/null || true
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sleep 5
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KYBER_EXE_PATH=$(find "$KYBER_PFX/pfx" -iname "kyber_launcher.exe" 2>/dev/null | head -1)
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if [ -z "$KYBER_EXE_PATH" ]; then
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echo ""
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echo "WARNING: Kyber.exe not found after installation."
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echo " Default install path assumed; continuing."
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fi
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fi
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# Resolve Windows-style paths for the shortcut
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if [ -n "$KYBER_EXE_PATH" ]; then
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rel=$(echo "$KYBER_EXE_PATH" | sed "s|.*/pfx/drive_c/||")
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KYBER_EXE_WIN="C:\\$(echo "$rel" | sed 's|/|\\|g')"
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dir_rel=$(dirname "$rel")
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KYBER_START_DIR="C:\\$(echo "$dir_rel" | sed 's|/|\\|g')\\"
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else
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KYBER_EXE_WIN='C:\Program Files (x86)\KYBER Launcher\kyber_launcher.exe'
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KYBER_START_DIR='C:\Program Files (x86)\KYBER Launcher\'
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fi
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echo " Windows path: $KYBER_EXE_WIN"
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# ── Ensure WebView2 Evergreen runtime is installed ─────────────────────────
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echo ""
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echo "[2/7] Verifying WebView2 runtime in the Kyber prefix..."
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# The Evergreen runtime lives here once installed.
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WV2_FOUND=$(find "$KYBER_PFX/pfx/drive_c" -iname "msedgewebview2.exe" 2>/dev/null | head -1)
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if [ -n "$WV2_FOUND" ]; then
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echo " WebView2 runtime present:"
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echo " $WV2_FOUND"
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else
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echo " WebView2 runtime NOT found — installing..."
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# Prefer winetricks if available — it handles the prefix env automatically
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# and uses a cached offline installer so no Wine-internal network call needed.
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if command -v winetricks >/dev/null 2>&1; then
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echo " Using winetricks to install webview2..."
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WINEPREFIX="$KYBER_PFX/pfx" \
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WINE="$PROTON_DIR/files/bin/wine64" \
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winetricks -q webview2 || true
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else
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# Download the Evergreen STANDALONE (offline) installer — linkid=2135547.
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# The bootstrapper (linkid=2124703) requires a second download from inside
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# Wine which reliably fails. The standalone is ~150 MB but self-contained.
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echo " Downloading WebView2 standalone installer (~150 MB)..."
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WV2_STANDALONE="/tmp/WebView2RuntimeInstaller_$$.exe"
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WV2_URL="https://go.microsoft.com/fwlink/p/?LinkId=2135547"
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if curl -L --progress-bar -o "$WV2_STANDALONE" "$WV2_URL" && [ -s "$WV2_STANDALONE" ]; then
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"$PROTON_DIR/proton" run "$WV2_STANDALONE" /silent /install || true
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rm -f "$WV2_STANDALONE"
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else
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echo " WARNING: Could not download WebView2 standalone installer."
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rm -f "$WV2_STANDALONE"
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fi
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fi
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sleep 5
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WV2_FOUND=$(find "$KYBER_PFX/pfx/drive_c" -iname "msedgewebview2.exe" 2>/dev/null | head -1)
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if [ -n "$WV2_FOUND" ]; then
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echo " WebView2 runtime installed:"
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echo " $WV2_FOUND"
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else
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echo ""
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echo " WARNING: WebView2 runtime still not found after install attempt."
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echo " Install winetricks and re-run, or install manually:"
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echo " sudo apt install winetricks"
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echo " $0"
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fi
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fi
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# ── Install cmd shim + OAuth watcher ──────────────────────────────────────
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# Wine's built-in cmd.exe crashes (exit 0xC0000005) when Kyber calls:
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# cmd /c start "" "<EA auth URL>"
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# We replace cmd.exe in the Kyber prefix with a tiny shim that writes the
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# URL to a known file, then a Linux-side watcher opens it with xdg-open.
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echo ""
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echo "[3/7] Installing cmd shim for OAuth login..."
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# The shim lives in the prefix's system32, not in Proton's global wine dir,
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# so it only affects Kyber and won't break other games.
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KYBER_SYS32="$KYBER_PFX/pfx/drive_c/windows/system32"
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CMD_REAL="$KYBER_SYS32/cmd-real.exe"
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CMD_SHIM="$KYBER_SYS32/cmd.exe"
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if [ -f "$CMD_REAL" ]; then
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echo " cmd shim already installed."
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else
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# Need mingw-w64 to compile the shim
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if ! command -v x86_64-w64-mingw32-gcc >/dev/null 2>&1; then
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echo " Installing mingw-w64..."
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sudo apt-get install -y mingw-w64 || {
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echo " WARNING: mingw-w64 install failed. Install manually:"
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echo " sudo apt install mingw-w64"
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echo " Then re-run this script."
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}
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fi
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if command -v x86_64-w64-mingw32-gcc >/dev/null 2>&1; then
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SHIM_C="/tmp/kyber_cmd_shim_$$.c"
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SHIM_EXE="/tmp/kyber_cmd_shim_$$.exe"
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cat > "$SHIM_C" << 'CEOF'
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#include <windows.h>
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/* ieq: case-insensitive wide string compare using only kernel32 */
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static int ieq(LPCWSTR a, LPCWSTR b) {
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return CompareStringOrdinal(a, -1, b, -1, TRUE) == 2; /* CSTR_EQUAL==2 */
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}
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static void write_url(LPCWSTR url) {
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HANDLE h = CreateFileW(L"C:\\kyber_oauth_url.txt",
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GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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if (h == INVALID_HANDLE_VALUE) return;
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int n = WideCharToMultiByte(CP_UTF8, 0, url, -1, NULL, 0, NULL, NULL);
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char *buf = (char*)HeapAlloc(GetProcessHeap(), 0, n + 1);
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WideCharToMultiByte(CP_UTF8, 0, url, -1, buf, n, NULL, NULL);
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DWORD w; WriteFile(h, buf, n - 1, &w, NULL);
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HeapFree(GetProcessHeap(), 0, buf);
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CloseHandle(h);
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}
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int WINAPI mainCRTStartup(void) {
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int argc;
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LPWSTR *argv = CommandLineToArgvW(GetCommandLineW(), &argc);
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for (int i = 1; i < argc - 1; i++) {
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if (ieq(argv[i], L"/c") && ieq(argv[i+1], L"start")) {
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for (int j = i+2; j < argc; j++) {
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if (argv[j][0] == L'h' || argv[j][0] == L'H') {
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write_url(argv[j]);
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LocalFree(argv);
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ExitProcess(0);
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}
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}
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}
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}
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/* pass-through to original cmd */
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LPWSTR rest = GetCommandLineW();
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while (*rest && *rest != L' ') rest++;
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LPCWSTR prefix = L"cmd-real.exe";
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int plen = lstrlenW(prefix), rlen = lstrlenW(rest);
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LPWSTR newcl = (LPWSTR)HeapAlloc(GetProcessHeap(), 0,
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(plen + rlen + 2) * sizeof(WCHAR));
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lstrcpyW(newcl, prefix);
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lstrcatW(newcl, rest);
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STARTUPINFOW si = {sizeof(si)};
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PROCESS_INFORMATION pi;
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CreateProcessW(NULL, newcl, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi);
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WaitForSingleObject(pi.hProcess, INFINITE);
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DWORD code = 1; GetExitCodeProcess(pi.hProcess, &code);
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CloseHandle(pi.hProcess); CloseHandle(pi.hThread);
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LocalFree(argv);
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ExitProcess(code);
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}
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CEOF
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if x86_64-w64-mingw32-gcc -O2 -ffreestanding -nostdlib \
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-mno-stack-arg-probe \
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-e mainCRTStartup -o "$SHIM_EXE" "$SHIM_C" \
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-lkernel32 -lshell32; then
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# If cmd.exe is a symlink, copy the real file out first,
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# then remove the symlink so we replace only this prefix.
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if [ -L "$CMD_SHIM" ]; then
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cp "$(readlink -f "$CMD_SHIM")" "$CMD_REAL"
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rm "$CMD_SHIM"
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else
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cp "$CMD_SHIM" "$CMD_REAL"
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fi
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cp "$SHIM_EXE" "$CMD_SHIM"
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echo " cmd shim installed ($(stat -c%s "$CMD_SHIM") bytes)."
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else
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echo " WARNING: cmd shim compile failed — login may not work."
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fi
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rm -f "$SHIM_C" "$SHIM_EXE"
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else
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echo " WARNING: mingw-w64 not found. Install it and re-run:"
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echo " sudo apt install mingw-w64"
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fi
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fi
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# ── OAuth watcher ──────────────────────────────────────────────────────────
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echo ""
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echo "[4/7] Installing OAuth watcher (opens EA login in your browser)..."
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URL_FILE="$KYBER_PFX/pfx/drive_c/kyber_oauth_url.txt"
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WATCHER="$HOME/.local/bin/kyber-oauth-watcher.sh"
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mkdir -p "$HOME/.local/bin"
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cat > "$WATCHER" << WEOF
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#!/bin/bash
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# Watches for Kyber's OAuth URL and opens it in the system browser.
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URL_FILE="$URL_FILE"
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echo "[kyber-watcher] Started. Watching \$URL_FILE"
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rm -f "\$URL_FILE"
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while true; do
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if [ -f "\$URL_FILE" ]; then
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URL=\$(cat "\$URL_FILE")
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rm -f "\$URL_FILE"
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if [[ "\$URL" == http* ]]; then
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echo "[kyber-watcher] Opening: \$URL"
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xdg-open "\$URL"
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fi
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fi
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sleep 0.5
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done
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WEOF
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chmod +x "$WATCHER"
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# Install as a systemd user service so it is always ready when Kyber runs
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SVCDIR="$HOME/.config/systemd/user"
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mkdir -p "$SVCDIR"
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cat > "$SVCDIR/kyber-oauth-watcher.service" << SEOF
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[Unit]
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Description=Kyber EA OAuth URL watcher
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After=graphical-session.target
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[Service]
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ExecStart=$WATCHER
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Restart=always
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RestartSec=2
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[Install]
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WantedBy=default.target
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SEOF
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if systemctl --user daemon-reload 2>/dev/null && \
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systemctl --user enable --now kyber-oauth-watcher.service 2>/dev/null; then
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echo " Watcher service enabled and started."
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echo " (It will auto-start on login from now on.)"
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else
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echo " NOTE: systemd user service could not be enabled."
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echo " Start the watcher manually before clicking Login in Kyber:"
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echo " $WATCHER &"
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fi
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# ── Add Kyber as a non-Steam shortcut ──────────────────────────────────────
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echo ""
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echo "[5/7] Adding Kyber as a non-Steam shortcut..."
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STEAM_UID=$(ls "$STEAM_HOME/userdata/" 2>/dev/null | grep -E '^[0-9]+$' | head -1)
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if [ -z "$STEAM_UID" ]; then
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echo " WARNING: No Steam userdata found — sign in to Steam once, then re-run."
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echo " Skipping shortcut + compat mapping."
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SKIP_STEAM_CFG=1
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else
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SHORTCUTS_DIR="$STEAM_HOME/userdata/$STEAM_UID/config"
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SHORTCUTS_FILE="$SHORTCUTS_DIR/shortcuts.vdf"
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mkdir -p "$SHORTCUTS_DIR"
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if [ -f "$SHORTCUTS_FILE" ] && [ ! -w "$SHORTCUTS_FILE" ]; then
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echo " Fixing permissions on shortcuts.vdf..."
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chmod 644 "$SHORTCUTS_FILE" || {
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echo " WARNING: Cannot write $SHORTCUTS_FILE — run:"
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echo " chmod 644 $SHORTCUTS_FILE"
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echo " then re-run this script."
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SKIP_STEAM_CFG=1
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}
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fi
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[ -f "$SHORTCUTS_FILE" ] && cp "$SHORTCUTS_FILE" "$SHORTCUTS_FILE.bak"
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python3 - "$SHORTCUTS_FILE" "$KYBER_APPID" "$KYBER_EXE_WIN" "$KYBER_START_DIR" << 'PYEOF'
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import sys, struct, os
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def s(key, value): # VDF string field
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return b'\x01' + key.encode() + b'\x00' + value.encode() + b'\x00'
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def i(key, value): # VDF int field
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return b'\x02' + key.encode() + b'\x00' + struct.pack('<I', value)
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shortcuts_file, appid_s, exe_win, start_dir = sys.argv[1:5]
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appid = int(appid_s)
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existing = b''
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idx = 0
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if os.path.exists(shortcuts_file):
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try:
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with open(shortcuts_file, 'rb') as f:
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raw = f.read()
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head = b'\x00shortcuts\x00'
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if raw.startswith(head) and raw.endswith(b'\x08\x08'):
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existing = raw[len(head):-2]
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# Skip if Kyber Launcher entry already present
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if b'Kyber Launcher' in existing:
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print(" Kyber Launcher already in shortcuts.vdf — skipping.")
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sys.exit(0)
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idx = existing.count(b'\x01appid\x00')
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except Exception:
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existing = b''
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idx = 0
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entry = b'\x00' + str(idx).encode() + b'\x00'
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entry += s('appid', str(appid))
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entry += s('AppName', 'Kyber Launcher')
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entry += s('Exe', f'"{exe_win}"')
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entry += s('StartDir', f'"{start_dir}"')
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entry += s('icon', '')
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entry += s('ShortcutPath', '')
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entry += s('LaunchOptions', '')
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entry += i('IsHidden', 0)
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entry += i('AllowDesktopConfig', 1)
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entry += i('AllowOverlay', 1)
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entry += i('OpenVR', 0)
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entry += i('Devkit', 0)
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entry += s('DevkitGameID', '')
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entry += i('LastPlayTime', 0)
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entry += b'\x08\x08'
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data = b'\x00shortcuts\x00' + existing + entry + b'\x08'
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with open(shortcuts_file, 'wb') as f:
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f.write(data)
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print(f" shortcuts.vdf written ({len(data)} bytes, entry index {idx})")
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PYEOF
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fi
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# ── CompatToolMapping — force Proton Experimental for the Kyber shortcut ────
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echo ""
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echo "[6/7] Forcing Proton Experimental for the Kyber shortcut..."
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if [ "${SKIP_STEAM_CFG:-0}" != "1" ]; then
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CFG_FILE="$STEAM_HOME/config/config.vdf"
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if [ -f "$CFG_FILE" ]; then
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cp "$CFG_FILE" "$CFG_FILE.bak"
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python3 - "$CFG_FILE" "$KYBER_APPID" << 'PYEOF'
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import sys, re
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cfg_file, appid = sys.argv[1], sys.argv[2]
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with open(cfg_file) as f:
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content = f.read()
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if f'"{appid}"' in content:
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print(f" CompatToolMapping for {appid} already present — skipping.")
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sys.exit(0)
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entry = (
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f'\t\t\t\t"{appid}"\n\t\t\t\t{{\n'
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f'\t\t\t\t\t"name"\t\t"proton_experimental"\n'
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f'\t\t\t\t\t"config"\t\t""\n'
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f'\t\t\t\t\t"Priority"\t\t"250"\n'
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f'\t\t\t\t}}\n'
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)
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new = re.sub(r'("CompatToolMapping"\s*\n\s*\{)', r'\1\n' + entry, content)
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if new == content:
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print(" WARNING: CompatToolMapping block not found.")
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print(" Set Proton Experimental for Kyber manually: right-click the")
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print(" Kyber shortcut in Steam → Properties → Compatibility.")
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sys.exit(0)
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with open(cfg_file, 'w') as f:
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f.write(new)
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print(f" CompatToolMapping → proton_experimental for appid {appid}")
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PYEOF
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else
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echo " WARNING: config.vdf not found. Set Proton Experimental manually"
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echo " in the Kyber shortcut's Properties → Compatibility."
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fi
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fi
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echo ""
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echo "[7/7] Done."
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echo ""
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echo "=== Kyber Setup Complete (native Linux) ==="
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echo ""
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echo "Next steps:"
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echo " 1. RESTART Steam so it picks up the new shortcut and compat mapping."
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echo " 2. The OAuth watcher is already running in the background."
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echo " (Confirm: systemctl --user status kyber-oauth-watcher)"
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echo " 3. Launch 'Kyber Launcher' from your Steam Library."
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echo " 4. Click Login. Kyber calls cmd /c start with the EA auth URL."
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echo " The cmd shim intercepts it and writes it to a file. The watcher"
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echo " picks it up and opens it in your browser via xdg-open."
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echo " 5. Log in on the EA page (email / Steam / 2FA as usual)."
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echo " 6. EA redirects to 127.0.0.1:<port>/?code=... — Kyber's loopback"
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echo " server catches the auth code and login completes."
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echo " The browser tab will show 'OK' or connection-refused — both normal."
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echo ""
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echo "Streaming from a headless box:"
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echo " Use Steam Remote Play — install the Steam Link app on your client,"
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echo " it discovers this host over your network."
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echo ""
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echo "Troubleshooting:"
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echo " Browser never opens after clicking Login:"
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echo " Check watcher is running: systemctl --user status kyber-oauth-watcher"
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echo " If not: $HOME/.local/bin/kyber-oauth-watcher.sh &"
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echo ""
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echo " Browser opens but login loops back to EA sign-in page:"
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echo " Kyber's loopback server timed out. Close Kyber, reopen it,"
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echo " then click Login and log in quickly."
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echo ""
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echo " 'cmd shim' missing (mingw-w64 was not installed):"
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echo " sudo apt install mingw-w64 && $0"
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