Are there any tools that I could use from a Linux terminal or Python's API in order to learn
application of zero knowledge proofs?
Akin to  the way using 
openssl, ssh, and gpg improved my life and my OPSEC allowing me in the process to learn the basics of symmetric and asymmetric encryption. I mean useful and rather minimalist tools. I am not asking for
shitcoins or bloated GUIs.