https://t.me/SuperBarbershopBot/app
(source: https://github.com/Igevorse/super-barbershop-for-telegram-miniapp-contest/commit/f9a4dce96416e8d2900a77205c3b02ff4de08d78)

Super Barbershop is a Telegram Mini App for booking appointments to a barbershop.

It is an example of creating an app working with already existing booking platform. In this case it is YClients.

Looks pretty bad in the dark mode. The date is not formatted properly. Otherwise, a good entry.

Good idea, I often booked haircuts through Yandex.Maps, I think it would be even more convenient through Telegram. :)