fix(steam): Impermanence + Steam

flake.lock

@@ -883,9 +883,8 @@
         "sops-nix": "sops-nix",
         "stylix": "stylix",
         "sydnix-cli": "sydnix-cli",
+        "tf2-nix": "tf2-nix",
         "vpn-confinement": "vpn-confinement"
-        "sydnix-cli": "sydnix-cli",
-        "tf2-nix": "tf2-nix"
       }
     },
     "sops-nix": {

hosts/sydpc/configuration.nix

@@ -13,7 +13,11 @@
   sydnix = {
     filesystemType = "btrfs";
 
-    steam.enable = true;
+    steam = {
+      enable = true;
+      impermanenceUsers = ["crumb"];
+    };
+
     niri.enable = true;
     stylix.enable = true;
     qemu.enable = true;

modules/home/steam.nix

@@ -19,7 +19,7 @@ in {
       #
       # https://github.com/ValveSoftware/steam-for-linux/issues/10552
       # https://github.com/nix-community/impermanence/issues/165
-      { directory = ".local/share/Steam"; method = "symlink"; }
+      # { directory = ".local/share/Steam"; method = "symlink"; }
       { directory = ".steam"; method = "symlink"; }
     ];
 

modules/home/users/crumb/tf2.nix

@@ -25,8 +25,9 @@ in {
           ./tf2/quake-hitsounds
         ];
       };
+      game-dir = ".local/share/Steam/steamapps/common/Team Fortress 2/tf";
     in {
-      home.file."tf" = {
+      home.file.${game-dir} = {
         recursive = true;
         source = my-config;
       };

modules/nixos/steam.nix

@@ -4,6 +4,16 @@ let cfg = config.sydnix.steam;
 in {
   options.sydnix.steam = {
     enable = lib.mkEnableOption "Steam";
+    impermanenceUsers = lib.mkOption {
+      type = lib.types.listOf lib.types.str;
+      default = [];
+      description = ''
+        A list of users for which ~/.local/share/Steam shall be persisted.  This
+        is a disgusting hack to get around an issue with Impermanence's
+        home-manager module.
+        https://github.com/nix-community/impermanence/issues/165#issuecomment-2537723929
+      '';
+    };
   };
 
   config = lib.mkIf cfg.enable {
@@ -28,5 +38,14 @@ in {
       enable = true;
       enable32Bit = true;
     };
+
+    environment.persistence.${config.sydnix.impermanence.persistDirectory}.users =
+      builtins.listToAttrs
+        (builtins.map
+          (user: {
+            name = user;
+            value.directories = [".local/share/Steam"];
+          })
+          cfg.impermanenceUsers);
   };
 }