I think the pi's are great for learning Linux, ARM, and to and extent embedded hardware. I had a cluster of them running in role-based configurations for variou

I think the pi's are great for learning Linux, ARM, and to and extent embedded hardware. I had a cluster of them running in role-based configurations for various services at home (pi-hole for DNS, plex server, bastion host, LibreNMS for monitoring, etc). I recently migrated everything to a single ESXi host because I wanted to dabble in virtualization (and have a tidy server rack) - but I am forever grateful for how easy and enjoyable they made learning.