general: https://www.pspunk.com/
custom theme guide using homebrew (plugin already installed) https://www.pspunk.com/psp-cxmb/
cfw overview: https://www.pspunk.com/ark-guide/
creating ps1 executable from any ps1 game: https://www.pspunk.com/psp-psx2psp/
categorize your games (i premake a homebrew and games category. following the naming convention on the SD card and make as many cataegories as you want. the psp is slow when you have too many things in one folder, so i do suggest breaking them up in some capacity if you go beyond like 20 games) https://www.pspunk.com/game-categories-lite/