You mentioned an X200 earlier, I have one with libreboot, and it's not letting me install OpenBSD, I don't know why I thought it would be a good idea to have to recompile firmware to update it... So, it sits, used as a gitlab server to play with. I actually love the X300s, the balance and keyboard are just amazing. I wish I could put some higher-end hardware in one, like, apple M1 or a cluster of RK3399 on a custom board. Just daydreaming stuff. Do you collect old Thinkpads, or is it just one you have around?