I am making a mod, but the mod will be downloaded by itself, due to it would be too hard for some people to put all the files where they need to go. But i made the mod on OSX, how do i convert it to be useable on windows?
you learn about how windows' version of sauerbraten works and then place the same files in the same spots. obviously there will be some top level differences in your file structure but the packages folders are the same.
"Content" mods (adding/replacing models, sounds) work on all platforms, as well as maps.
Mods that alter the C++ code must be compiled for each platform; if you do not have access to a platform, it is advisable to release your mod under a free license such as the GPL (and release the source), so that people can compile it freely.