I am interested in reworking the old Warzone 2100 PlayStation one engine into the new PS3 PSGL but it would require a rewrite of some of the code. The game is gplv2 licensed. I might have to either redo the old pc code that was open sourced to the public or maybe disassemble the PS1 executable...
Well you could use Debian (I think) it supports PowerPC and should work on the PS3 yes just use a thumb drive to setup it or use their installer but it needs to be 64 bit the installer is recommended but if you are advanced user you can use their debootstrap for that.
Or just use it to shrink...