www.divideoverflow.com
[ my public key: https://keybase.io/vizzah; my proof: https://keybase.io/vizzah/sigs/JcWGYrp_RiXMOKpIuZL8woee5n56UhAZR4SqL4wsl9Y ]
"There is online booking system, but it never shows any available slots. But then there are few companies that for 50-100 euros can get an appointment." ^^^ shouldn't complain about this on Hacker News. I wrote my own bot and it took a day or so. The appointment slot came in in 30 minutes thereafter ;)
This project is an enhanced reader for Ycombinator Hacker News: https://news.ycombinator.com/.
The interface also allow to comment, post and interact with the original HN platform. Credentials are stored locally and are never sent to any server, you can check the source code here: https://github.com/GabrielePicco/hacker-news-rich.
For suggestions and features requests you can write me here: gabrielepicco.github.io