config/hosts/matrix/default.nix

@@ -3,6 +3,7 @@
   imports = [
     ./configuration.nix
     ./hardware-configuration.nix
+    ./mas.nix
     ./postgresql.nix
     ./matrix-synapse.nix
     ./nginx.nix

config/hosts/matrix/mas.nix

@@ -0,0 +1,6 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [
+    matrix-authentication-service
+  ];
+}

config/hosts/matrix/postgresql.nix

@@ -8,6 +8,11 @@
         TEMPLATE template0
         LC_COLLATE = "C"
         LC_CTYPE = "C";
+      CREATE ROLE "mas_user" WITH LOGIN PASSWORD 'mas';
+      CREATE DATABASE "mas" WITH OWNER "mas_user"
+        TEMPLATE template0
+        LC_COLLATE = "C"
+        LC_CTYPE = "C";
     '';
   };
 }