Static Proton Prefix by nxbrew

Its generally recommended to make a new stable prefix once a new stable version released or if some games wont work anymore/new games wont work

The flatpak versions of Protontricks and protonup-qt is needed so uninstall the current version if installed

Requirements:
Sudo password(use the command "passwd" in terminal and set your own password(DONT FORGET IT)

Copy and paste those commands(they will install flatpak and the 2 packages:

sudo steamos-readonly disable
sudo btrfs property set -ts / ro false
sudo pacman-key --init
sudo pacman-key --populate archlinux
sudo pacman-key --populate holo
sudo pacman -Syu
sudo pacman -S flatpak
sudo flatpak install flathub com.github.Matoking.protontricks
flatpak install flathub net.davidotek.pupgui2

Install latest proton-ge with protonup-qt
Launch the game for proton experimental with build in experimental proton from steam

Dependencies AIO
https://www.mediafire.com/file/u4did4mzvmb5s5i/Librerias-AiO.exe/file(DONT INSTALL THE NVIDIA DRIVER AND THE JAVA RUNTIME)

stable-9-7 means proton-ge 9-7
Change name to the version that's up-to-date at your time and date

Step 1: add non steam game(proton-ge & experimental)
//Those don't need to be games but they need to be a exe so the proton prefixes are created
//I'll highly recommend adding the AIO dependencies file cuz you can install all dependencies this way at once

Step 2: set compatibility and launch after

Step 3: find the prefix from the just launched games(proton-ge & experimental)
//you can use protontricks

Step 4: create symlink(stable-9-7 & experimental)

Step 5: clear target and start in text box

Step 6: Right Click > Manage > Hide this game


Setting up ProtonTricks to Install Games

Step 0.5: make sure that the path exists
mkdir -p ~/.local/share/applications

Step 1: copy executable to application
cp /var/lib/flatpak/exports/share/applications/com.github.Matoking.protontricks-launch.desktop ~/.local/share/applications/protontricks-launch-lla.desktop

Step 2: edit the file protontricks-launch-lla.desktop
Just add necessary lines to pre existing file
[Desktop Entry]
Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --env=WINE_LARGE_ADDRESS_AWARE=0 --env=PROTON_FORCE_LARGE_ADDRESS_AWARE=0 --command=protontricks-launch --file-forwarding com.github.Matoking.protontricks --no-term @@ %f @@
Name=Protontricks Launcher (LLA)
Type=Application
Terminal=false
NoDisplay=true
Categories=Utility
Icon=com.github.Matoking.protontricks
MimeType=application/x-ms-dos-executable;application/x-msi;application/x-ms-shortcut;
X-Flatpak=com.github.Matoking.protontricks

Step 3: update desktop database
update-desktop-database ~/.local/share/applications/


Installing Games(repacks)

Step 1:Right click -> Protontricks Launcher (LLA)
//or Right click -> Open With -> Protontricks Launcher (LLA)
Step 2: select either Experimental or stable-9-7

Adding Game to Steam

Step 1: add the executable to steam
1: right click -> add to steam
2: click on "Add a Game" -> Add a Non-Steam Game -> Browse -> search for the executable -> "Add Selected Program"

Step 2: go to comparability and force either Experimental or a stable release

Step 3: Add winedlloverrides

STEAM_COMPAT_DATA_PATH="/home/deck/.steam/steam/steamapps/compatdata/experimental"
//Prefix for proton experimental
STEAM_COMPAT_DATA_PATH="/home/deck/.steam/steam/steamapps/compatdata/stable-9-7"
//Custom prefix name for x proton version
STEAM_COMPAT_MOUNTS=/run/media/name_of_drive
//Mount drive to proton(potentially useful for games on a separate partition but not needed for normal use case)

Example of a working override:
STEAM_COMPAT_DATA_PATH="/home/deck/.steam/steam/steamapps/compatdata/experimental" %COMMAND%


This guide was originally posted by someThrowawayGuy on reddit
Credits to him