Firmware is updatable via JTAG, which isn't the most (end) user friendly interface.
Colours are hard-coded in the VDP, no way to change them.
I hope for it to be ready in the coming weeks.
Price should be $65 for the adapter in box, with professionally printed label and a set of Arcade Projects/Darkdawg Arcade stickers as goodies.
Cartridge cases are 1:1 copies of the OG ones, even the screws are a match.
All of that shrink wrapped for the ultimate unboxing experience. :)