@coolboymew NewGrounds now lets you upload a .zip file containing an index.html, which it displays in an iframe.

I would copy that format. My product name for it is an "Experience".

A "Submission" is a full page dedicated to an Experience, but Experiences could also be embedded in posts or displayed elsewhere.

It's still a rough idea.

There's another idea I have. It relates to archive.org

archive.org is an advanced file viewer that lets you preview nearly any type of file in the browser. An Experience is really just a file format, so it could render those, but it could also render things like GameBoy ROMs, 3D models, Animal Crossing pattern files, and other rare formats.

The end product is something between NewGrounds and Archive.org. It's built on Nostr, but it maybe also has IPFS capabilities because it seems like it should.

And if you look at NeoCities for inspiration, they've done a good job attracting a youth audience and they teach people how to code. Capturing that audience would be key.