Replace GNU coreutils with uutils.

nix/configuration/configuration.nix

@@ -71,6 +71,7 @@
     ./roles/tekton
     ./roles/terraform
     ./roles/thunderbolt
+    ./roles/uutils
     ./roles/vnc_client
     ./roles/vscode
     ./roles/wasm

nix/configuration/hosts/odo/default.nix

@@ -15,6 +15,7 @@
     ./framework_module.nix
   ];
 
+  config = {
     # Generate with `head -c4 /dev/urandom | od -A none -t x4`
     networking.hostId = "908cbf04";
 
@@ -105,6 +106,7 @@
     me.tekton.enable = true;
     me.terraform.enable = true;
     me.thunderbolt.enable = true;
+    me.uutils.enable = false;
     me.vnc_client.enable = true;
     me.vscode.enable = true;
     me.wasm.enable = true;
@@ -122,4 +124,5 @@
     me.sm64ex.enable = true;
     me.shipwright.enable = true;
     me.ship2harkinian.enable = true;
+  };
 }

nix/configuration/hosts/quark/default.nix

@@ -100,6 +100,7 @@
     me.tekton.enable = true;
     me.terraform.enable = true;
     me.thunderbolt.enable = true;
+    me.uutils.enable = false;
     me.vnc_client.enable = true;
     me.vscode.enable = true;
     me.wasm.enable = true;

nix/configuration/roles/uutils/default.nix

@@ -0,0 +1,33 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+{
+  imports = [ ];
+
+  options.me = {
+    uutils.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to replace GNU coreutils with uutils (a rust drop-in replacement).";
+    };
+  };
+
+  config = lib.mkIf config.me.uutils.enable (
+    lib.mkMerge [
+      {
+        # environment.corePackages automatically installes coreutils-full, so merely installing uutils-coreutils-noprefix is insufficient for replacing GNU coreutils.
+        nixpkgs.overlays = [
+          (final: prev: {
+            coreutils = final.uutils-coreutils-noprefix;
+            coreutils-full = final.uutils-coreutils-noprefix;
+          })
+        ];
+      }
+    ]
+  );
+}