Hello, I would like to introduce the project of Slovakian 21 fork.
It is a marketplace for bitcoiners - 
Registration and login works via LNURL-auth
(Only self-custodial LN wallets work)
If it could be expanded and there was interest, we would also add a mobile app.
Please share in your communities and social networks. 🙏
Thank you
TwentyOne.Market
Buy & Sell for bitcoin - TwentyOne Market - Bitcoiners' Marketplace (beta)
Here you can freely sell or buy stuff for bitcoin.