The problem Update Notifier solves

Some sites don't provide any notification subscription and most of those who do provide it via emails. Since, emails get messy due to lots of spam and promo mails, important notifications may get lost. On the other hand one can personalise notifications on telegram according the sender of the message, and the bot can also be used to get personalised update notifications. The source code is available on github so that the advanced users can tweak the bot and the scrapper to get notifications related to their desired website.

Challenges we ran into

There were bugs related to markdown-parsing while sending messages.