Ancient Lenovo Thinkpad. X200 series. 8GB RAM. 1TB SSD.

Runs Devuan Linux with fluxbox window manager. Mostly used for Firefox, Tor Browser, Libreoffice and FreeCAD.

FreeCAD gets slow with large files, the others are fine.

I have a newer laptop, but I use the Thinkpad more. Seems to be indestructible :)