proton: added proton and proton ge

wiki/games/proton.md

@@ -0,0 +1,36 @@
+# Proton
+
+[Proton](https://github.com/ValveSoftware/Proton) is a compatibility tool for
+[Steam](./steam.md) by its developers, [valve](https://www.valvesoftware.com),
+based on [Wine](../linux/wine.md).
+
+## GE-Version
+
+[Proton GE](https://github.com/GloriousEggroll/proton-ge-custom) is a community
+built version of Proton.
+It often contains fixes for bugs which are not yet included in the official
+Proton releases.
+
+Proton GE can be installed on Linux systems by installing the `ProtonUp-Qt`
+application using [Flatpak](../linux/flatpak.md).
+
+### Errors with the Wine prefix of a specific game
+
+The last ressort for fixing problems that are related to the wine prefix of a
+game is to delete the Wine prefix.
+For this the id of the Steam game first has to be known.
+This is done by navigating to the Steam website or the community page of the
+specific game.
+The URLs will have one of the following forms where the game id can be read:
+
+```
+http://steamcommunity.com/app/<game id>/
+http://store.steampowered.com/app/<game id>/
+```
+
+After that navigate to the place your Steam games are stored.
+You can remove `<steam location>/steamapps/compatdata/<game id>` to reset the
+Wine prefix completely.
+It is recommended to keep a backup of the folder containing the old Wine prefix
+as it stores game saves and other important data, that can be useful.
+

wiki/games/steam.md

@@ -2,28 +2,9 @@
 
 [Steam](https://store.steampowered.com/) is a software for digital game
 destribution.
-
-## Proton
-
-### Errors with the Wine prefix of a specific game
-
-The last ressort for fixing problems that are related to the wine prefix of a
-game is to delete the Wine prefix.
-For this the id of the Steam game first has to be known.
-This is done by navigating to the Steam website or the community page of the
-specific game.
-The URLs will have one of the following forms where the game id can be read:
-
-```
-http://steamcommunity.com/app/<game id>/
-http://store.steampowered.com/app/<game id>/
-```
-
-After that navigate to the place your Steam games are stored.
-You can remove `<steam location>/steamapps/compatdata/<game id>` to reset the
-Wine prefix completely.
-It is recommended to keep a backup of the folder containing the old Wine prefix
-as it stores game saves and other important data, that can be useful.
+It is developed by [Valve](https://www.valvesoftware.com).
+Steam uses its compatibility layer, [Proton](./proton.md) for running windows
+games on linux based operating systems.
 
 ## Adding non-Steam Games
 

wiki/games/steam_deck.md

@@ -1,11 +1,16 @@
 # Steam Deck
 
 The [Steam Deck](https://store.steampowered.com/steamdeck) is a handheld gaming
-computer made by the same developers as [Steam](./steam.md).
+computer made by the same developers as [Steam](./steam.md),
+[Valve](https://www.valvesoftware.com).
 Due to its form factor it can be used especially well to play games that need a
 controller, such as many games that run on [emulators](./emulators.md).
 But by adding a USB-hub and connecting keyboard and mouse it can be used to
 play classical PC games aswell.
+As the Steam Deck is using a linux based operating system all the windows based
+games are run with the help of [Proton](./proton.md).
+The Steam Deck includes the Flatpak based [Discover](../linux/flatpak.md)
+software management suite to install additional software.
 
 ## Shortcuts
 

wiki/linux/flatpak.md

@@ -1,16 +1,21 @@
 # Flatpak
 
-Flatpak is a cross-distribution package manager for linux systems.
+[Flatpak](https://flatpak.org/) is a cross-distribution package manager for
+linux systems.
 
 ## Setup
 
 The `flatpak` package can be installed by most distribution specific package
 managers (e.g. [pacman or yay](./arch-linux/pacman_and_yay.md)).
 After installation it is important to add [flathub](https://flathub.org/home),
-a source for many flatpak packages.
+a source for many Flatpak packages.
 The addition of this can be done by running
 `flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo`.
 
+For browsing and installing Flatpak packages via a graphic user interface the
+software management suite called Discover can be used.
+It requires the Flatpak backend.
+
 ## Installing software
 
 When software installation is done with Flatpak it is recommended to pass the
@@ -20,5 +25,5 @@ In practice it looks like the following:
 
 ## Running software
 
-Software installed via flatpak can be run by typing the full package path into
+Software installed via Flatpak can be run by typing the full package path into
 the command line, for example `com.makemkv.MakeMKV`.