LunaTranslator + Steam/Proton (Linux)

Run LunaTranslator inside a game's Proton prefix WebView2 + Yomitan work on Linux.

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Scripts

Script	What it does	When to run
install.sh	Installs protontricks/winetricks and saves env vars	Once per machine
setup_game.sh	Prepares one game's Proton prefix and launches Luna	Per game (first time)
launch_game.sh	Launches Luna inside the game’s Proton prefix	Per game (every time)
restore_game.sh	Backs up & resets that game's Proton prefix	If the prefix breaks

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Prereqs

• Native Steam with Proton installed.
• WebView2 Evergreen Standalone (offline) x64 installer
• Original LunaTranslator release

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One-time install

export WEBVIEW2_INSTALLER="/ABS/PATH/MicrosoftEdgeWebView2RuntimeInstallerX64.exe"
export LUNATRANSLATOR="/ABS/PATH/LunaTranslator.exe"
bash install.sh
source ~/.bashrc

This appends a # Proton Luna block with env vars to your ~/.bashrc.

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Prepare a game (per AppID)

After you've run the game at least once, you can list detected prefixes / IDs:

protontricks -l

Then prepare the game and install WebView2 into that game's Proton prefix:

export STEAM_APPID=<YOUR_APPID>
bash setup_game.sh

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Daily use (launch Luna for that game)

export STEAM_APPID=<YOUR_APPID>
# Start the game in Steam first if you plan to HOOK
bash launch_game.sh

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Reset the game's Proton prefix (if broken)

export STEAM_APPID=<YOUR_APPID>
bash restore_game.sh
# Then start the game once in Steam and rerun:
bash setup_game.sh