2 files changed, 20 insertions, 0 deletions
diff --git a/modules/default.nix b/modules/default.nix
index 034a4e3..f2c7560 100644
--- a/modules/default.nix
+++ b/modules/default.nix
@@ -12,6 +12,7 @@
     ./syslog.nix
     ./hosts.nix
     ./bluetooth.nix
+    ./unfree.nix
     ./overlays
   ];
 
diff --git a/modules/unfree.nix b/modules/unfree.nix
new file mode 100644
index 0000000..f7712f2
--- /dev/null
+++ b/modules/unfree.nix
@@ -0,0 +1,19 @@
+{ lib, config, ... }:
+
+cfg = config.this.unfree;
+inherit (builtins) elem;
+inherit (lib) getName;
+in
+{
+  options = {
+    this.unfree.allowed = lib.mkOption {
+      type = with lib.types; listOf str;
+      default = [];
+    };
+  };
+
+  config = {
+    nixpkgs.config.allowUnfreePredicate =
+      pkg: elem (getName pkg) cfg.allowed;
+  };
+}