I tried creating a web application from a ChatGPT app.
The Sites feature might be quite good for people who "don't want to see the code and want to create easily!"

ChatGPT handles the tedious parts, making it easy to create and publish.

However, since the infrastructure side is not visible from the user's side, you may not be able to see the contents of the database or storage. If you want to check the infrastructure yourself, this is not possible, so be aware of that. (However, the fact that it handles all of that is also a benefit.)

◻︎Sound Effects
Otologic (https://otologic.jp)

◻︎BGM
https://zukisuzukibgm.com/

◻︎note
How to Create/Publish a Website/Application with ChatGPT/Codex's Sites Feature
https://note.com/ez_tech/n/nf24c777e227b

◻︎Spoken Audio
https://try.elevenlabs.io/easy-tech