How does Charles handle gzip,deflate?

I use a short shell script for MITM.

It simply runs two socats and netsed in between them.

I create ca.pem and server2.pem with openssl, install ca.pem on my device and sign server2.pem with ca.pem.

I redirect traffic from device to my computer running the script.

Low complexity, works reliably, costs me nothing.

Downside is it only does one remote site at a time.

sslsplit works well too but it does not handle gzip,deflate.