feat: Flake | revamp entire flake (#1)

Reviewed-on: #1

hosts/common/optional/services/audio.nix

@@ -0,0 +1,23 @@
+{
+  pkgs,
+  ...
+}:
+
+{
+  services = {
+    # Enable sound with pipewire.
+    pulseaudio.enable = false;
+    pipewire = {
+      enable = true;
+      alsa.enable = true;
+      alsa.support32Bit = true;
+      pulse.enable = true;
+      wireplumber.enable = true;
+    };
+  };
+  security.rtkit.enable = true;
+
+  environment.systemPackages = builtins.attrValues {
+    inherit (pkgs) pavucontrol;
+  };
+}

hosts/common/optional/services/bluetooth.nix

@@ -0,0 +1,11 @@
+{
+  ...
+}:
+
+{
+  services.blueman.enable = true;
+  hardware = {
+    bluetooth.enable = true;
+    bluetooth.powerOnBoot = true;
+  };
+}

hosts/common/optional/services/firmware.nix

@@ -0,0 +1,7 @@
+{
+  ...
+}:
+
+{
+  services.fwupd.enable = true;
+}

hosts/common/optional/services/greetd.nix

@@ -0,0 +1,16 @@
+{
+  pkgs,
+  ...
+}:
+
+{
+  services.greetd = {
+    enable = true;
+    settings = {
+      default_session = {
+        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --greeting 'Welcome to NixOS!' --asterisks --remember --remember-user-session --time --cmd ${pkgs.hyprland}/bin/Hyprland";
+        user = "greeter";
+      };
+    };
+  };
+}

hosts/common/optional/services/openssh.nix

@@ -0,0 +1,15 @@
+{
+  config,
+  ...
+}:
+let
+  sshPort = config.hostSpec.networking.ports.tcp.ssh;
+in
+{
+  services.openssh = {
+    enable = true;
+    ports = [ sshPort ];
+  };
+
+  networking.firewall.allowedTCPPorts = [ sshPort ];
+}

hosts/common/optional/services/printing.nix

@@ -0,0 +1,8 @@
+# Reminder that CUPS cpanel defaults to localhost:631
+{
+  ...
+}:
+
+{
+  services.printing.enable = true;
+}

hosts/common/optional/services/smart-card.nix

@@ -0,0 +1,7 @@
+{
+  ...
+}:
+
+{
+  services.pcscd.enable = true;
+}