Hi Kirill from Belarus,
See Required packages for running piaware, and more about mlats - #170 by curtko.
Use VMware Player (free for non-commercial use). Don’t use Hyper-V. Make your Linux VM as small and lightweight as possible. What was interesting about this experiment was that it showed you can run piaware on a wimpy CPU on an old Windows laptop in a Linux virtual machine, and that such a seemingly slow platform has enough horsepower and low enough latency to support a real-time application like piaware – in particular, the mlat calculations. Someone made the comment that piaware should only be run directly on a RPi. Of course, an RPi uses less power and is much cheaper than a laptop. But if you have an old laptop that you want to repurpose to run piaware, it is certainly possible. As others have pointed out, if you want to run Linux directly on an old Windows laptop (no VMs), that would work well too.
This was a fun and interesting learning experience. Many thanks to @abcd567 for his help on this.
Best regards, Curt