I have two Raspberry Pi 4b collecting dust what should I do?

Pretty much what the title says; I have two raspberry pi 4b sitting around and I would like to make a good use of it.I am targeting Cloud and devops experience to showcase in my resume.

I currently have a macbook pro m1, a desktop with 16gb ram and 13th gen intel cpu and 2 raspberry pi 4b.

My skill level is pretty much entry level with basic foundations in programming and linux.

I need advice on interesting projects and setups that could help in my career progression as Cloud/DevOps titles.