It looks great! I'm building https://histre.com/ and I find that some people do prefer to use a chat app they're already using. I built a Telegram bot so that they can keep taking notes on Telegram and not have to switch, but still get all the benefits of a real knowledge tool: https://histre.com/features/take-notes-with-telegram/ Perhaps you could build something like that to ease the transition?
Like the other commenter I also had a very hard time connecting your main landing page to that Telegram feature. I even checked if you accidentally posted the wrong url.
A lot of landing pages (especially built by technical people) have the same issue, they list a bunch of "features" but don't talk about the actual problem that is being solved.
