I took a few of those USB-PD decoy boards and soldered them to some universal power jacks. Now I have a home kit that can power any legacy barrel-jack devices.

I took a few of those USB-PD decoy boards and soldered them to some universal power jacks. Now I have a home kit that can power any legacy barrel-jack devices. I did have to label each cable with the hard-wired voltage so I don't mix them up. Basically a DIY version of this: https://www.aliexpress.us/item/3256804001423573.html https://www.aliexpress.us/item/3256804001423573.html