First of all ..... I didn't do it !!!      It is Jasper who created the fantastic AIS-catcher package.
https://github.com/jvde-github/AIS-catcher

All I did was creating a blogpost on a quick setup for the package. It could help because there are so many options.
https://pysselilivet.blogspot.com/2023/1...-best.html
I know that this package has been mentioned before here in the forum but I think it's important to make a "heads up" due to its very good performance compared to other AIS receivers I have tested.

Check out the below link and the "Yearly statistics"
https://stations.vesselfinder.com/stations/5696
It's obvious that I changed software package, using same hardware as before, in mid December.

And don't use a RPi Zero, its not enough.

Enjoy !