Try to attempt the game state directory if it doesn't exist

src/main.rs

@@ -85,7 +85,7 @@ async fn main() -> Result<(), String> {
             cli::migrate::run_migrate_custom(
                 cli_config::DatabaseConfig {
                     last_migration_table_name: None,
-                    driver: cli_config::DatabaseDriver::Postgres {
+                    driver: DatabaseDriver::Postgres {
                         host: conf.database.host,
                         port: conf.database.port,
                         name: conf.database.name,

src/server/mod.rs

@@ -1,6 +1,9 @@
 //! This module holds the server definition
 
+use std::fs::{create_dir_all, set_permissions, Permissions};
 use std::net::SocketAddr;
+use std::os::unix::fs::PermissionsExt;
+use std::path::Path;
 
 use actix_toolbox::tb_middleware::{
     setup_logging_mw, DBSessionStore, LoggingMiddlewareConfig, PersistentSession, SessionMiddleware,
@@ -71,6 +74,12 @@ pub async fn start_server(
         return Err(StartServerError::InvalidSecretKey);
     }
 
+    let game_data = Path::new(&config.server.game_data_path);
+    if !game_data.exists() {
+        create_dir_all(game_data)?;
+        set_permissions(game_data, Permissions::from_mode(0o700))?;
+    }
+
     let runtime_settings = RuntimeSettings {
         game_data_path: config.server.game_data_path.clone(),
     };