Hello and welcome! I doubt I could answer your first question just because I'm not experienced with Linux... 
I mean, I know how to make a IPS patch easily enough with a program such as Lunar IPS or SNEStuff, but I suspect your question is more than that, so hopefully another can shed light on that.
As for text functions, which ones? The end game character name display, check here:
https://www.ff6hacking.com/forums/thread...ding+names
and here on the wiki for a permanent link to the breakdown chart Madsiur put together:
https://www.ff6hacking.com/wiki/lib/exe/..._names.zip
I mean, I know how to make a IPS patch easily enough with a program such as Lunar IPS or SNEStuff, but I suspect your question is more than that, so hopefully another can shed light on that.As for text functions, which ones? The end game character name display, check here:
https://www.ff6hacking.com/forums/thread...ding+names
and here on the wiki for a permanent link to the breakdown chart Madsiur put together:
https://www.ff6hacking.com/wiki/lib/exe/..._names.zip
We are born, live, die and then do the same thing over again.