feat(systemModules:host): add initial host configuration module

used to define general host configuration, including:

- hardware
- name
- admin
- type
- role

system/modules/host/function/default.nix

@@ -0,0 +1,19 @@
+{ lib, ... }:
+
+let
+  inherit (lib) types mkOption;
+in
+
+{
+  imports = [
+    ./gaming
+    ./workstation
+    ./media-server
+  ];
+
+  options.systemModules.host.function = mkOption {
+    type = with types; listOf (enum ["gaming" "workstation" "media-server"]);
+    default = [];
+    description = "Host's primary function/s";
+  };
+}

system/modules/host/function/workstation/default.nix

@@ -0,0 +1,29 @@
+{ lib, config, ... }:
+
+  let
+    inherit (lib) mkIf;
+    inherit (builtins) elem;
+    function = config.systemModules.host.function;
+  in
+
+{
+  config = mkIf (elem "workstation" function) {
+    systemModules = {
+
+      audio.enable = true;
+      video.enable = true;
+
+      programs = {
+        dconf.enable = true;
+        wireshark.enable = true;
+        bandwhich.enable = true;
+        kdeconnect.enable = true;
+      };
+
+      services = {
+
+      }
+    }
+  }
+  
+}