@@ -0,0 +1,51 @@
+{
+  lib,
+  ...
+}:
+let
+  inherit (import ../../data) machines;
+
+  mkKnownHost =
+    name:
+    { publicKey, domains, ... }:
+    {
+      inherit publicKey;
+      extraHostNames = map (domain: "${name}.${domain}") domains;
+    };
+
+  mkBuilder =
+    {
+      system,
+      systems ? [ system ],
+      sshUser ? "nixremote",
+      protocol ? "ssh-ng",
+      ...
+    }@builder:
+    builder
+    // {
+      inherit
+        sshUser
+        systems
+        protocol
+        ;
+    };
+
+  mkBuildMachine =
+    hostName: machine:
+    (mkBuilder machine.builder)
+    // {
+      inherit hostName;
+    };
+in
+{
+  programs.ssh.knownHosts = lib.mapAttrs mkKnownHost machines;
+  nix = {
+    distributedBuilds = true;
+
+    buildMachines = lib.mapAttrsToList mkBuildMachine (lib.filterAttrs (n: v: v ? builder) machines);
+
+    settings = {
+      connect-timeout = 1;
+    };
+  };
+}