Hence the need to build themselves. It boils down to: download the source, install the dependencies, (configure,) compile, install. In this case, you need make/cmake. You could also crosscompile (on another machine), but that’s trickier. If you’ve never compiled something yourself, maybe start with a known-good configuration from your distribution’s sources.
How do I build my own software from source?
I’m trying to get tic80 working on RIScv but i ll need to build a custom version cos there are no prebuilts, how do I go about this?