Yes, this information or a link to where to find this information should ideally be in the readme. If it requires you "own" a copy of the official version to be purchased from Steam or GOG, what benefit does this version add on top to make the extra effort worth it? The only information I can get from the readme is that it supports more platforms.
Yes I use this to play fallout 1 on Linux, one of the main advantages I like is that it runs nicely in windowed mode, so I can use it as a distraction when I need a moment to leave the IDE and think
Mac Source Ports is such a wonderful site. It looks like we'll never be a first-class gaming platform again for 99% of major games but at least the projects hosted on this site increases the depth of the back catalog we can play, and it's great to have them all collected in one place.
As another example, it's how QuakeWorld (and some other modern improvements on Quake) work.
You're supposed to have a licensed copy of the game for the non-redistributable content, but the code of QuakeWorld is modern, runs better, etc. as opposed to trying to install Quake 1 itself from Steam and hoping that it runs.
> what benefit does this version add on top to make the extra effort worth it?
I mean just being an open-source version implementation of the engine seems noteworthy of itself, non? From mods, to alternate system support, etc that's all implicitly possible now.