🔧 epicurus: configure remote builder

hosts/epicurus/darwin-configuration.nix

@@ -5,7 +5,11 @@ let
 
 in
 {
-  imports = [ <home-manager/nix-darwin> ./homebrew.nix ];
+  imports = [
+    <home-manager/nix-darwin>
+    ./homebrew.nix
+    ../../modules/builder
+  ];
 
   # List packages installed in system profile. To search by name, run:
   # $ nix-env -qaP | grep wget
@@ -18,6 +22,7 @@ in
   # Auto upgrade nix package and the daemon service.
   services.nix-daemon.enable = true;
 
+  users.nix.configureBuildUsers = true;
   users.users.walkah = {
     home = "/Users/walkah";
     shell = pkgs.zsh;
@@ -46,6 +51,8 @@ in
     };
   };
 
+  services.lorri.enable = true;
+
   programs = {
     zsh = {
       enable = true;

modules/builder/default.nix

@@ -0,0 +1,11 @@
+{ config, lib, pkgs, ... }:
+{
+  nix.distributedBuilds = true;
+  nix.buildMachines = [{
+    hostName = "plato";
+    systems = [ "x86_64-linux" "aarch64-linux" ];
+    maxJobs = 12;
+    speedFactor = 2;
+    supportedFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
+  }];
+}