In my experience, mounting some thinkpad servers to the wall above the rack gives the homelab a very International Space Station feel.
Building Cheap & Efficient Home Servers with... Laptops? | Hardware Haven
Submitted 21 hours ago by ProdigalFrog@slrpnk.net to selfhosting@slrpnk.net
https://www.youtube.com/watch?v=CIBmVXteOcI
poVoq@slrpnk.net 12 hours ago
Especially when starting out it can also be quite helpful to have a screen and keyboard attached to the server and not only SSH access.
To prevent battery issues it is often possible to limit the charge level in the bios.