I wanted to power my Raspberry Pi for klipper from the SV06 Plus PSU (it will probably work on SV06 but it has less watts so I don't know if they're enough) so I remixed an existing model to screw to the PSU.
The voltage regulator is an inexpensive LM2596 with two USB ports you can easily find on aliexpress, like this one: https://aliexpress.com/item/1005001998155819.html
Refer to the original model for installing the regulator in the case, it's a really tight fit as explained (I even had to cut a bit of plastic).
You'll then need to unscrew the PSU, expose the connectors and add wires from the + and - of the PSU's free ports to the regulator, then screw everything back again but this time with the regulator attached to the PSU.
The author remixed this model.