It’s not entirely clear why [Advanced Tinkering] needs a 50,000-volt power supply ... Powered by a 24-volt DC supply and an adjustable DC-DC converter, that setup alone yields something around ...
It’s no replacement for a proper bench supply, especially since it doesn’t have adjustable current limiting, but it’s a nice improvement upon previous psu hacks.
allowing you to create custom cable lengths to connect your pedals to your power supply. If you want something adjustable, then the aforementioned daisy chain system is available at £54/$69.