refactor: modularize programs and services

hosts/nixos/modules/services/default.nix

@@ -0,0 +1,10 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    ./xserver.nix
+    ./greetd.nix
+    ./tailscale.nix
+    ./flatpak.nix
+  ];
+}

hosts/nixos/modules/services/flatpak.nix

@@ -0,0 +1,26 @@
+{ config, pkgs, ... }:
+
+{
+  services.flatpak = {
+    enable = true;
+    packages = [
+      "org.prismlauncher.PrismLauncher"
+      "org.vinegarhq.Sober"
+      "org.vinegarhq.Vinegar"
+      "com.spotify.Client"
+    ];
+    overrides = {
+      "org.prismlauncher.PrismLauncher".Context = {
+        filesystems = [
+          "home"
+        ];
+      };
+      "org.vinegarhq.Sober".Context = {
+        filesystems = [
+          "xdg-run/app/com.discordapp.Discord:create"
+          "xdg-run/discord-ipc-0"
+        ];
+      };
+    };
+  };
+}

hosts/nixos/modules/services/greetd.nix

@@ -0,0 +1,13 @@
+{ config, pkgs, ... }:
+
+{
+  services.greetd = {
+    enable = true;
+    settings = {
+      default_session = {
+        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --remember --remember-session";
+       user = "greeter";
+      }; 
+    };
+  };
+}

hosts/nixos/modules/services/tailscale.nix

@@ -0,0 +1,10 @@
+{ config, pkgs, ... }:
+
+{
+  sops.secrets."tailscale/authkey" = { };
+
+  services.tailscale = {
+    enable = true;
+    authKeyFile = config.sops.secrets."tailscale/authkey".path;
+  };
+}

hosts/nixos/modules/services/xserver.nix

@@ -0,0 +1,8 @@
+{ config, pkgs, ... }:
+
+{
+  services.xserver = {
+    xkb.layout = "us";
+    videoDrivers = [ "nvidia" ];
+  };
+}