Our key result is the development of PWAs and Flutter mobile apps for a top car dealership company. One of the most complex projects was the internal HR management system. With this app company employees create applications for receiving an advance, going on vacation, maternity leave, etc. As the organizational structure requires several rounds of approval, the problem was that the employee was now aware of the current decision step. Now having the solution our team member developer, the employee can see all changes and statuses in the Telegram bot as notifications and on the taskbar, where his task was updated in real-time. Firebase was used to implement real-time.