Craft-tech.com.ua Automatization of accounting, CPU cranks

In the framework of Craft-tech.com.ua I work on:
1) Automation of accounting. The trading accounting system.
2) Stages with Numerical Software Management (CPU).
Server based on micro computers by Raspberry Pi.
4) Video surveillance
You can see more details on my Youtube channel: https://www.youtube.com/c/EvgenKrupa