Add Retroarch as an optional install

bin/omakub-sub/install.sh

@@ -10,6 +10,7 @@ CHOICES=(
   "Mainline Kernels  Install newer Linux kernels than Ubuntu defaults"
   "OBS Studio        Record screencasts with inputs from both display + webcam"
   "Ollama            Run LLMs, like Meta's Llama3, locally"
+  "Retroarch         Play retro games"
   "Scrcpy            Android screen mirroring (requires dev mode / USB debug on!)"
   "Spotify           Stream music from the world's most popular service"
   "Steam             Play games from Valve's store"
@@ -19,7 +20,7 @@ CHOICES=(
   "<< Back           "
 )
 
-CHOICE=$(gum choose "${CHOICES[@]}" --height 20 --header "Install application")
+CHOICE=$(gum choose "${CHOICES[@]}" --height 21 --header "Install application")
 
 if [[ "$CHOICE" == "<< Back"* ]] || [[ -z "$CHOICE" ]]; then
   # Don't install anything

install/desktop/optional/app-retroarch.sh

@@ -0,0 +1,14 @@
+sudo add-apt-repository -y ppa:libretro/stable
+sudo apt update -y
+sudo apt install -y retroarch
+
+cat <<EOF >~/.local/share/applications/Retroarch.desktop
+[Desktop Entry]
+Name=RetroArch
+Exec=/usr/bin/retroarch
+Type=Application
+Icon=/home/$USER/.local/share/omakub/applications/icons/Retroarch.png
+Comment=Play retro games
+Categories=Game;Emulator;
+Terminal=false
+EOF

uninstall/app-retroarch.sh

@@ -0,0 +1,5 @@
+sudo add-apt-repository --remove ppa:libretro/stable
+sudo apt update -y
+sudo apt remove -y retroarch
+sudo apt autoremove -y
+rm ~/.local/share/applications/Retroarch.desktop