https://t.me/buymeacoffee_on_ton_bot
(source: https://github.com/designervoid/buymeacoffee_on_ton/commit/5f7da04bbc953ccc3834585d2e356f07e898c57c)

a Mini App which provides donates via TMA.
It provides custom TonConnect UI Context on Solid.js, using TON Connect2.0 Auth, using ton3-core without Buffer (also created custom JSX library with proxy reactive state, but not added in the contest solution because of no extra points to same app on custom library wouldn't add extra points to the solution).

That’s why you should not trust off-chain solutions:  https://github.com/designervoid/buymeacoffee_on_ton/commit/6672f25b88171aefa5d5574e1733a4c6f7da25a7#diff-26ad4b834941d9b19ebf9db8082bd202aaf72ea0ddea85f5a8a0cb3c729cc6f2L16