Just built a 595 version of the TommyProm32 with a cheap nano clone (LGT8F328P) and it works !

[ABelliqueux]

For those looking to minimize cost, I built a TommyProm32-595 with a 3$ nano clone - a LGT8F328P-32 - and it works as intended.

All I had to do was install the LGT hardware definitions in the Arduino IDE then set the board type to "LGT8F328P-LQFP32 MiniEVB", making sure to select the 16Mhz variant. I was then able to flash the firmware.

[TomNisbet]

Looks great!