Integrates backup wrapper with switch emulators

• Adds a new backup script that automates creating and rotating backups
• Updates gaming module to include dynamic configuration imports
• Creates desktop entries for emulators using the backup wrapper

home/toph/common/optional/gaming/default.nix

@@ -8,10 +8,6 @@
 }:
 
 let
-
-  path = lib.custom.relativeToRoot "pkgs/common/citron-emu/package.nix";
-  citron-emu = pkgs.callPackage path { inherit pkgs; };
-
   monitor = lib.head (lib.filter (m: m.primary) config.monitors);
   steam-session =
     let
@@ -50,10 +46,10 @@ let
     '';
 in
 {
+  imports = lib.custom.scanPaths ./.;
+
   home.packages = with pkgs; [
-    citron-emu
     prismlauncher
-    ryubing
     steam-session
     # modrinth-app
     (lutris.override {

home/toph/common/optional/gaming/scripts/backup.nix

@@ -0,0 +1,76 @@
+{
+  pkgs,
+  ...
+}:
+pkgs.writeScript "backup-wrapper" ''
+  #!/usr/bin/env fish
+
+  ## Helpers ##
+  function backup
+    # Uses $src, $dest, $max_backups from outer scope
+    set timestamp (date +%Y%m%d-%H%M%S)
+    set outfile "$dest/backup-$timestamp.tar.zst"
+
+    mkdir -p $dest
+    echo "→ Creating backup: $outfile"
+
+    tar cf - $src |
+      ${pkgs.zstd}/bin/zstd -- -c -T5 -15 -v > $outfile
+
+    # Rotate: keep only the newest $max_backups
+    set files (ls -1t $dest/backup-*.tar.zst)
+    if test (count $files) -gt $max_backups
+      for f in $files[(math "$max_backups + 1")..-1]
+        rm $f
+        echo "  • Removed old backup: $f"
+      end
+    end
+  end
+
+  function periodic_backups --argument-names pid
+    while test -d /proc/$pid
+      sleep $interval
+      echo "Interval backup at "(date)
+      backup
+    end
+  end
+
+
+  ## Arg parsing ##
+  if test (count $argv) -lt 5
+    echo "Usage: $argv[0] <src> <dest> <interval_s> <max_backups> -- <program> [args...]"
+    exit 1
+  end
+
+  set src         $argv[1]
+  set dest        $argv[2]
+  set interval    $argv[3]
+  set max_backups $argv[4]
+
+  # strip leading “--” if present
+  set rest $argv[5..-1]
+  if test $rest[1] = "--"
+    set rest $rest[2..-1]
+  end
+
+
+  ## Workflow ##
+  echo "BACKUP: Initial backup of '$src' → '$dest'"
+  backup
+
+  echo "BACKUP: Launching your program: $rest"
+  # fish will expand $rest as command + args
+  $rest &; set pid $last_pid
+  echo "   → PID is $pid"
+
+  echo "BACKUP: Starting periodic backups every $interval seconds…"
+  periodic_backups $pid &
+
+  echo "BACKUP: Waiting for PID $pid to exit…"
+  wait $pid
+
+  echo "BACKUP: Program exited at "(date)"; doing final backup."
+  backup
+
+  exit 0
+''

home/toph/common/optional/gaming/scripts/default.nix

@@ -0,0 +1,3 @@
+{
+  # :D
+}

home/toph/common/optional/gaming/switch.nix

@@ -0,0 +1,77 @@
+# This module just provides a customized .desktop file with gamescope args dynamically created based on the
+# host's monitors configuration
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}:
+
+let
+
+  path = lib.custom.relativeToRoot "pkgs/common/citron-emu/package.nix";
+  citron-emu = pkgs.callPackage path { inherit pkgs; };
+
+  backup-wrapper = import ./scripts/backup.nix { inherit pkgs; };
+
+  user = config.hostSpec.username;
+
+in
+{
+  home.packages = with pkgs; [
+    citron-emu
+    ryubing
+  ];
+
+  xdg.desktopEntries = {
+    Ryujinx = {
+      name = "Ryubing w/ Backups";
+      comment = "Ryubing Emulator with Save Backups";
+      exec = ''fish ${backup-wrapper} /home/${user}/.config/Ryujinx/bis/user/save /pool/Backups/Switch/RyubingSaves 960 20 -- ryujinx''; # Should amount to be ~8 hours of playtime in 30 backups
+      icon = "Ryujinx";
+      type = "Application";
+      terminal = false;
+      categories = [
+        "Game"
+        "Emulator"
+      ];
+      mimeType = [
+        "application/x-nx-nca"
+        "application/x-nx-nro"
+        "application/x-nx-nso"
+        "application/x-nx-nsp"
+        "application/x-nx-xci"
+      ];
+      prefersNonDefaultGPU = true;
+      settings = {
+        StartupWMClass = "Ryujinx";
+        GenericName = "Nintendo Switch Emulator";
+      };
+    };
+
+    citron-emu = {
+      name = "Citron w/ Backups";
+      comment = "Citron Emulator with Save Backups";
+      exec = ''fish ${backup-wrapper} /home/${user}/.local/share/citron/nand/user/save /pool/Backups/Switch/CitronSaves 960 20 -- citron-emu''; # Should amount to be ~8 hours of playtime in 30 backups
+      icon = "applications-games";
+      type = "Application";
+      terminal = false;
+      categories = [
+        "Game"
+        "Emulator"
+      ];
+      mimeType = [
+        "application/x-nx-nca"
+        "application/x-nx-nro"
+        "application/x-nx-nso"
+        "application/x-nx-nsp"
+        "application/x-nx-xci"
+      ];
+      prefersNonDefaultGPU = true;
+      settings = {
+        StartupWMClass = "Citron";
+        GenericName = "Nintendo Switch Emulator";
+      };
+    };
+  };
+}