From 27aa2f077bf335c0dbfaf19954075b36da45cf8c Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Sun, 22 Dec 2024 00:48:57 -0500
Subject: [PATCH] Set up chromium with support for wayland and widevine.

---
 nix/configuration/configuration.nix          |  1 +
 nix/configuration/roles/chromium/default.nix | 51 ++++++++++++++++++++
 nix/configuration/roles/sway/default.nix     |  4 +-
 3 files changed, 55 insertions(+), 1 deletion(-)
 create mode 100644 nix/configuration/roles/chromium/default.nix

diff --git a/nix/configuration/configuration.nix b/nix/configuration/configuration.nix
index f8509f7..bd623fd 100644
--- a/nix/configuration/configuration.nix
+++ b/nix/configuration/configuration.nix
@@ -27,6 +27,7 @@
     ./roles/sway
     ./roles/alacritty
     ./roles/firefox
+    ./roles/chromium
     ./roles/emacs
     ./roles/git
     ./roles/fonts
diff --git a/nix/configuration/roles/chromium/default.nix b/nix/configuration/roles/chromium/default.nix
new file mode 100644
index 0000000..737bb31
--- /dev/null
+++ b/nix/configuration/roles/chromium/default.nix
@@ -0,0 +1,51 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  environment.systemPackages = with pkgs; [
+    (chromium.override { enableWideVine = true; })
+  ];
+
+  nixpkgs.config.allowUnfreePredicate =
+    pkg:
+    builtins.elem (lib.getName pkg) [
+      "chromium"
+      "chromium-unwrapped"
+      "widevine-cdm"
+    ];
+
+  environment.persistence."/persist" = lib.mkIf (!config.me.buildingIso) {
+    hideMounts = true;
+    users.talexander = {
+      directories = [
+        {
+          directory = ".config/chromium";
+          user = "talexander";
+          group = "talexander";
+          mode = "0700";
+        }
+      ];
+    };
+  };
+  environment.persistence."/state" = lib.mkIf (!config.me.buildingIso) {
+    hideMounts = true;
+    users.talexander = {
+      directories = [
+        {
+          directory = ".cache/chromium";
+          user = "talexander";
+          group = "talexander";
+          mode = "0700";
+        }
+      ];
+    };
+  };
+
+  nixpkgs.config.chromium.commandLineArgs = "--enable-features=Vulkan";
+}
diff --git a/nix/configuration/roles/sway/default.nix b/nix/configuration/roles/sway/default.nix
index 65b3d1b..6776a31 100644
--- a/nix/configuration/roles/sway/default.nix
+++ b/nix/configuration/roles/sway/default.nix
@@ -297,11 +297,13 @@ in
   programs.sway.extraSessionCommands =
     if config.me.buildingIso then
       ''
-        export WLR_RENDERER_ALLOW_SOFTWARE=1;
+        export WLR_RENDERER_ALLOW_SOFTWARE=1
+        export NIXOS_OZONE_WL=1 # Wayland support for chromium and electron
       ''
     else
       ''
         export WLR_RENDERER=vulkan
+        export NIXOS_OZONE_WL=1 # Wayland support for chromium and electron
       '';
 
   programs.sway = {