Also true story the persistence-with-no-server mechanism for sketchzone is IndexedDB and not localStorage because I blew the last frontend interview I had in part because I totally forgot about the existence of anything besides localStorage and cookies. 😭

https://developer.mozilla.org/en-US/docs/Web/API/Storage_API/Storage_quotas_and_eviction_criteria#what_technologies_store_data_in_the_browser