Wanna make one, we could open source it? I have thought about making something similar before for driving VFD/Nixie tubes. There are a bunch of things out there that don't quite scratch the itch.

https://www.sparkfun.com/products/15801

https://www.adafruit.com/product/5807

https://electroniccats.com/store/catsink-usb-c-pd/