I recommend reading Oleksii Anulia's book "Jingle BellZ."
It is a testimony of a former Ukrainian prisoner of war about the modern Russian Gulag.
You have probably read about Stalin's terror, but you cannot even imagine how much the system has changed and become even more terrifying since 1930. Oleksii had to experience that and shared what he survived through.
A very important read.
Below (quoted post) is an excerpt from Oleksii's story.
https://x.com/Gerashchenko_en/status/1977731016149090342