Installing NextStep OS (OpenStep) in VirtualBox (2018)
This is really cool.  I never got to play with a proper NeXT machine, but WindowMaker was my window manager of choice for several years in the late 90s/early 2000s.  I always wished that GNUStep could have gotten more traction on the desktop.I love the NeXT aesthetic, I'm ready for the the next UI design trend to go retro.