This week I tested it with Jumble's source code and after some bug fixes... it works perfectly! Yeah you can upload anyone else's code easily or just use official Jumble, if the Jumble's dev chooses to upload it. Later, there will even be a 'draft' release channel if say a vibe coding platform wants to upload and show a preview before really publishing a vibe coded app to the 'main' channel.
1 or 2 weeks tops to finish and integrate the signer module and it's ready for demo. \o\