DIY 24VDC laptop power supply

I run the solar power system in my trailer on 24VDC; while I have a converter to let me use 12VDC stuff in it, it's nice to be able to run things off of the 24VDC without using the converter. This is an enclosure that you can use with a few things off of Amazon to make a laptop power supply that works off of 24V. You could probably swap around components and tweak the design to make one that would work off of 12VDC as well -- you'd just need a boost circuit instead of a buck circuit.

Anyway