Development version for Linux, Ubuntu

[jdinius]

Any chance of getting the development version into Ubuntu software, or advice on how to get it? I know the stable version is there, but the game I'm trying to play has performance issues in that version. I have to use safe texture cache to avoid text corruption, but this causes massive slowdowns (not needed in latest dev release, I was playing there before switching from Windows to Ubuntu, game is Pokemon XD if that's helpful). I've tried building the dev version off of github but the result was very prone to crashing and proved nearly impossible to remove when I decided it was too broken for use. Any help is appreciated. Thanks in advance.