Vintage platform necromancy. #Psion hardware and software hackery, especially SIBO/EPOC16 (Series 3, etc). Made the #PsiDrive, a USB drive for Psion SSDs. Slowly rewriting the SIBO SDK. WARNING: Will #sidequest (#HaikuOS, #Linux, #BSD, #MAME, #NeoVim, #virtualisation #virtualization, #Arduino, #RP2040, #PlatformIO, #FreePascal #ObjectPascal, #OCaml, #compilers) If you have old Psion source code (OPL, C, C++, assembly), docs or schematics, get in touch! #retrocomputing #permacomputing