So yeah, this is an archive of literally all of the OSS code for the PS5, and if my writing's a mess, my eyes are still blurry, 'cause it's, like, 2AM.
All the OSS code Sony hosts: So all their, like, stuff that they list on the 'OSS Info' page: https://doc.dl.playstation.net/doc/ps5-oss/index.html .
So stuff like WebKit, FreeBSD (which Orbis OS is based on.) and other things, like, drivers, apps that come with the PS5, etc.
So stuff like Lua, JavaScriptCore, C/C++ libraries for the console and WebKit, and Ffmpeg (which interestingly, Sony doesn't mention anywhere in the PS5 Settings.) Strange, but I'll go with it.