Polish YouTuber KukmanPL has created this awesome 512gb PI4/400 build containing all the best systems and ROMs – in his descriptive video below (in Polish language) he walks you through this awesome image!
EXTRACT THE RAR ARCHIVE
This image is downloaded in multiple rar parts, you will need WINRAR installed to extract them (yes other programs such as 7zip may work – but this was created with the new RAR4 format which really should be handled by winrar!) – You will need to extract them by simply RIGHT clicking on the first file and EXTRACTING ALL
Download WINRAR HERE (2nd one down x64 bit 6.0)