Oleksandr Kaleniuk
@oleksandrkaleniukI do wordsandbuttons.online and I also wrote a Geometry for Programmers book.
7 months 3 days 16 hours and 49 minutes.png?theme=light&md=1&fontSize=72px&images=https://cdn.hackernoon.com/images/IiNLlB7F5GQYLVoCrYgTXOEx94e2-8093bys.jpeg">
I do wordsandbuttons.online and I also wrote a Geometry for Programmers book.