decky-loader/frontend/src/utils/settings.ts

export async function getSetting<T>(key: string, def: T): Promise<T> {
  const res = await DeckyBackend.call<[string, T], T>('utilities/settings/get', key, def);
  return res;
}

export async function setSetting<T>(key: string, value: T): Promise<void> {
  await DeckyBackend.call<[string, T], void>('utilities/settings/set', key, value);
}