diff --git a/database-setup.nu b/database-setup.nu
new file mode 100644
index 0000000..423a40c
--- /dev/null
+++ b/database-setup.nu
@@ -0,0 +1,27 @@
+def main [
+    user_config: string
+    database_config: string
+] {
+    alias psql = ^psql --tuples-only --no-align
+
+    if not ($user_config | path exists) {
+        print $"($user_config) does not exist!"
+        exit 1
+    }
+    if not ($database_config | path exists) {
+        print $"($database_config) does not exist!"
+        exit 1
+    }
+
+    let users = ($user_config | open)
+    let databases = ($database_config | open)
+
+    $users | debug
+    $databases | debug
+
+    $users | each {
+        |user|
+        let exists = ("SELECT 1 FROM pg_roles WHERE rolname=:'username';" | psql --variable username=$"($user.username)")
+        $exists | debug
+    }
+}
diff --git a/flake.nix b/flake.nix
index 6409e4c..5bc1466 100644
--- a/flake.nix
+++ b/flake.nix
@@ -427,6 +427,11 @@
                   useDefaultShell = true;
                 };
 
+                systemd.tmpfiles.rules = [
+                  "d /var/lib/posgresql 0750 postgresql postgresql -"
+                  "d /var/lib/posgresql/15 0700 postgresql postgresql -"
+                ];
+
                 systemd.services.postgresql =
                   let
                     hbaFile = pkgs.writeTextDir "pg_hba.conf" ''