gayming/README.md: notes learned on Fedora Kinoite on Steam Deck

gayming/README.md

@@ -1,6 +1,6 @@
 <!-- @format -->
 
-# Notes related to gaming
+# Notes related to gayming
 
 _A lot of older files that I haven't touched recently were moved to this
 directory. I don't think anyone was using them, so I am not afraid of breaking
@@ -18,6 +18,12 @@ links._
     - [Cursor doesn't stick to game window](#cursor-doesnt-stick-to-game-window)
       - [Graphics corruption such as display full of black dots](#graphics-corruption-such-as-display-full-of-black-dots)
     - [Steam client itself is laggy](#steam-client-itself-is-laggy)
+- [Fedora Atomic](#fedora-atomic)
+  - [Heroic Games flatpak](#heroic-games-flatpak)
+    - [Actually using gamescope](#actually-using-gamescope)
+  - [Steam flatpak](#steam-flatpak)
+  - [Steam Deck](#steam-deck)
+  - [Other flatpak lifehacks](#other-flatpak-lifehacks)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
@@ -67,3 +73,61 @@ it's tracked at
 Close/logoff friends window/network or disable its animations.
 
 - https://github.com/ValveSoftware/steam-for-linux/issues/7245#issuecomment-897417115
+
+## Fedora Atomic
+
+_Means Fedora Kinoite unless otherwise specified._ Read also
+[aminda.eu/n/essentialsoftware](https://aminda.eu/n/essentialsoftware) which
+may cross-reference here.
+
+### Heroic Games flatpak
+
+- When asked for Steam flatpak location, it's
+  `~/.var/app/com.valvesoftware.Steam/data/Steam`. The `data/Steam` confuses
+  me too.
+- No input in Skyrim Special Edition GOG? Try quitting Steam. That may also
+  affect other games (KH:MoM didn't care whether Steam was running or not).
+- Gamescope and Mangohud installed, but not found? Pay attention to their
+  branch, at the time of writing they want branch `23.08`.
+  - Remember the dualslash shortpaw!
+    `sudo flatpak install flathub org.freedesktop.Platform.VulkanLayer.MangoHud//23.08 org.freedesktop.Platform.VulkanLayer.gamescope//23.08`
+
+#### Actually using gamescope
+
+Having gamescope and mangohud installed and found? That is not enough to use
+it.
+
+> It's weird. You have to check the "enable upscaling" box, then set "Game
+> Width" and "Game Height", but leave "Upscale {Width,Height}" empty.
+
+- [`@rtxn@lemmy.world`](https://lemmy.world/u/rtxn) on
+  [How the heck do I get gamescope working with Heroic Games Launcher?](https://rimworld.gallery/m/linux_gaming@lemmy.world/t/2882/How-the-heck-do-I-get-gamescope-working-with-Heroic/comment/20433#entry-comment-20433)
+
+Same page may have hinted me on the branch version numbers, but I lost the
+source for that.
+
+### Steam flatpak
+
+See also above and below. Remember to
+`sudo flatpak install flathub com.valvesoftware.Steam.CompatibilityTool.Proton-GE`
+and in Steam settings find the checkbox to make everything run with
+compatibility tool `Proton GE (flatpak)`.
+
+### Steam Deck
+
+If using Fedora Kinoite, life may be easier by making symlinks to autostart
+the gayming apps on login
+
+```bash
+mkdir -p ~/.config/autostart/
+ln -nsfv /var/lib/flatpak/exports/bin/com.valvesoftware.Steam ~/.config/autostart/
+ln -nsfv /var/lib/flatpak/exports/bin/com.heroicgameslauncher.hgl ~/.config/autostart/
+```
+
+Visit Steam settings to enable launching in big picture mode and Heroic Games
+Launcher settings to start minimized.
+
+### Other flatpak lifehacks
+
+Don't forget
+[scripts/bash/flatpak-workarounds.bash](https://gitea.blesmrt.net/mikaela/scripts/src/branch/master/bash/flatpak-workarounds.bash)!