GM, sure you want to make a new web3 app on telegram in the form of a mini app. Here are the tips for you:
1. Ship your MVP as soon as possible. The Telegram MiniApps ecosystem currently lacks plenty of solutions. Even a simple helper can draw attention.
2. Reverse engineer others' work: in Telegram Desktop: Settings > Advanced > Experimental settings > Enable webview inspection. Or better yet...
3. Talk to people who make MiniApps. Try to learn hands-on experience from them and find paths to fund your application with crypto assets

Recently, I open-sourced my toolkit for that. If you want an uncensored version or consultation in a field, DM me. The free version with no string attached is on my GitHub: https://github.com/ic-n/universal-telegram-miniapp-backend

/ton