add user astro

lib/users/astro.nix

@@ -0,0 +1,18 @@
+{ pkgs, ... }:
+
+let
+  keys = [
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGJJTSJdpDh82486uPiMhhyhnci4tScp5uUe7156MBC8 astro"
+  ];
+in {
+
+  nix.trustedUsers = [ "astro" ];
+
+  users.users.astro = {
+    isNormalUser = true;
+    extraGroups = [ "users" "wheel" "kvm" "audio" "video" "adbusers" "camera" ];
+    openssh.authorizedKeys.keys = keys;
+  };
+
+  nix.sshServe.keys = keys;
+}