3) Poland's solution was also open sourced very soon https://github.com/ProteGO-Safe . While it could have more privacy protective, as long as it will have an option to turn the contract tracing off I will use it. Unfortunately despite the fact that creators of this app are privacy conscious I only heard about it from negative articles. I checked it myself and they are using centralised tracing system, only because Apple/Google decentrilised one isn't ready and it is a main concern in disparaging articles. I'm not saying that currently Poland isn't going into autocracy, but it isn't a tool in this machine. However with 10k installs in a 40m country it is useless.
