I know it's a joke, but take everything that is part of the mess, and put it in boxes. Only unpack what you need to use, and eventually you'll be left with your minimum working set, and a bunch of boxes you can either store or give away
Honestly, the clutter is not too bad in this video, just limited table space and a bunch of needs to be stored items. But there's no crazy amounts of chaos
The LTT cable ties are pretty cool, but you can make them super cheap just get double-sided Velcro strips from AliExpress, and a bunch of neodymium magnets and you can do the same thing for pennies per unit