home(steam): port to home

home/steam/config.nix

@@ -0,0 +1,14 @@
+{ pkgs
+, lib
+, config
+, ... }: with lib; let
+  cfg = config.home.steam;
+in mkIf cfg.enable {
+  hardware.steam-hardware.enable = true;
+
+  networking.firewall = {
+    allowedTCPPorts = [ 27015 27036 ];
+    allowedUDPPorts = [ 27015 ];
+    allowedUDPPortRanges = [ { from = 27031; to = 27036; } ];
+  };
+}

home/steam/home.nix

@@ -0,0 +1,13 @@
+{ pkgs
+, lib
+, config
+, ... }: with lib; let
+  cfg = config.passthrough.steam;
+  enable = cfg.enable && (cfg.allUsers || (config.home.username == "app"));
+  package = config.programs.steam.package;
+in mkIf enable {
+  home.packages = with pkgs; [
+    cfg.package
+    cfg.package.run
+  ];
+}

home/steam/nixos.nix

@@ -0,0 +1,29 @@
+{ pkgs
+, lib
+, config
+, ... }: with lib; let
+  cfg = config.home.steam;
+  persist = [ ".steam" ".local/share/Steam" ];
+in {
+  imports = [ ./config.nix ];
+
+  options.home.steam = {
+    enable = mkEnableOption "steam software and environment";
+    package = mkOption {
+      type = with types; package;
+      default = config.programs.steam.package;
+      description = "steam package";
+    };
+    allUsers = mkEnableOption "set up for all users";
+  };
+
+  config = {
+    users.homeModules = [
+      # this module passes steam configuration to home-manager
+      { passthrough.steam = cfg; }
+    ];
+
+    users.home.persist.directories = with cfg; mkIf (enable && allUsers) persist;
+    users.home.persistApp.directories = with cfg; mkIf (enable && !allUsers) persist;
+  };
+}