[Desktop/Console] Prepare enhanced console support

desktop/console.nix

@@ -0,0 +1,23 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  xcfg = config.services.xserver;
+  generalCfg = config.aviallon.general;
+in {
+  config = {
+    services.kmscon = {
+      hwRender = mkDefault xcfg.enable;
+      extraConfig = ""
+        + optionalString ( ! isNull xcfg.layout )
+          "xkb-layout=${xcfg.layout}"
+        + optionalString ( ! isNull xcfg.xkbVariant )
+          "xkb-variant=${xcfg.xkbVariant}"
+        + optionalString ( ! isNull xcfg.xkbOptions )
+          "xkb-options=${xcfg.xkbOptions}"
+        + "font-dpi=${toString (xcfg.dpi or 96)}"
+      ;
+      enable = mkDefault (! generalCfg.minimal );
+    };
+  };
+}
+