“Smart” widgets being the latest one; a reinvention of HTML, completely unspeced with no input from any other devs whatsoever. It’s basically a proprietary spec wrapped in a nostr event.

Luckily some devs are working on a standard way of doing something similar with hypernotes and HyperCards from nostr:npub149p5act9a5qm9p47elp8w8h3wpwn2d7s2xecw2ygnrxqp4wgsklq9g722q and nostr:npub1p4kg8zxukpym3h20erfa3samj00rm2gt4q5wfuyu3tg0x3jg3gesvncxf8 

https://m.primal.net/KFXI.jpg