The MPC is a standalone unit. It is a DAW so you don’t need a PC. You can make an entire song on it without ever needing a pc or external editing software, you can connect instruments mics right to it. It’s basically a portable studio.

You can even download updates, instruments, sample kits right on the unit.

It is annoying tho since they started adding features to the PC version of the software that aren’t available in the standalone versions. But you get access to them if you own the hardware.

Cmdchallenge is similar to Linux survival. But is mostly command line basics like moving around directories, searching, etc. It also gives a list of solutions that people have used for each exercise, which is interesting just to see different ways of doing things.