Add support for DisplayLink docks at work.

nix/configuration/configuration.nix

@@ -28,6 +28,7 @@ in
     ./roles/d2
     ./roles/direnv
     ./roles/disko
+    ./roles/displaylink
     ./roles/distributed_build
     ./roles/doas
     ./roles/docker
@@ -51,7 +52,6 @@ in
     ./roles/graphviz
     ./roles/hydra
     ./roles/image_based_appliance
-    ./roles/instawow
     ./roles/iso
     ./roles/iso_mount
     ./roles/jujutsu

nix/configuration/hosts/odo/default.nix

@@ -107,7 +107,6 @@
     me.graphical = true;
     me.graphics_card_type = "amd";
     me.graphviz.enable = true;
-    me.instawow.enable = true;
     me.iso_mount.enable = true;
     me.jujutsu.config = ../../roles/jujutsu/files/jujutsu_config_home.toml;
     me.jujutsu.enable = true;

nix/configuration/hosts/odowork/default.nix

@@ -92,6 +92,7 @@
     me.chromium.enable = true;
     me.d2.enable = true;
     me.direnv.enable = true;
+    me.displaylink.enable = true;
     me.doas.enable = true;
     me.docker.enable = false;
     me.dont_use_substituters.enable = true;

nix/configuration/hosts/quark/default.nix

@@ -100,7 +100,6 @@
     me.graphical = true;
     me.graphics_card_type = "amd";
     me.graphviz.enable = true;
-    me.instawow.enable = true;
     me.iso_mount.enable = true;
     me.jujutsu.config = ../../roles/jujutsu/files/jujutsu_config_home.toml;
     me.jujutsu.enable = true;

nix/configuration/roles/displaylink/default.nix

@@ -0,0 +1,40 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  options.me = {
+    displaylink.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to install displaylink.";
+    };
+  };
+
+  config = lib.mkIf config.me.displaylink.enable (
+    lib.mkMerge [
+      {
+        environment.systemPackages = with pkgs; [
+          displaylink
+        ];
+
+        allowedUnfree = [ "displaylink" ];
+
+        boot = {
+          extraModulePackages = [ config.boot.kernelPackages.evdi ];
+          initrd.kernelModules = [
+            "evdi"
+          ];
+        };
+      }
+      (lib.mkIf config.me.graphical {
+      })
+    ]
+  );
+}

nix/configuration/roles/instawow/default.nix

@@ -1,25 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-
-{
-  imports = [ ];
-
-  options.me = {
-    instawow.enable = lib.mkOption {
-      type = lib.types.bool;
-      default = false;
-      example = true;
-      description = "Whether we want to install instawow.";
-    };
-  };
-
-  config = lib.mkIf config.me.instawow.enable {
-    environment.systemPackages = with pkgs; [
-      instawow
-    ];
-  };
-}