message: Made it compile.
  I'm an idiot.
diff: @@ -51,7 +51,7 @@ pub struct Filesystem {
  vfs: vfs::OverlayFS,
  resources_path: path::PathBuf,
  zip_path: path::PathBuf,
  - // user_config_path: path::PathBuf,
  + user_config_path: path::PathBuf,
  user_data_path: path::PathBuf,
  }
  @@ -120,7 +120,7 @@ impl Filesystem {
  let mut resources_path;
  let mut resources_zip_path;
  let user_data_path;
  - // let user_config_path;
  + let user_config_path;
  // <game exe root>/resources/
  {
  resources_path = root_path.clone();
  @@ -170,7 +170,7 @@ impl Filesystem {
  vfs: overlay,
  resources_path: resources_path,
  zip_path: resources_zip_path,
  - // user_config_path: user_config_path,
  + user_config_path: user_config_path,
  user_data_path: user_data_path,
  };
  @@ -339,7 +339,7 @@ mod tests {
  resources_path: "".into(),
  zip_path: "".into(),
  - // user_config_path: "".into(),
  + user_config_path: "".into(),
  user_data_path: "".into(),
  }
  