Run TESV:Skyrim (linux) with some mods (that are cross-platform in theory, but may have issues deriving from Windows' case-insensitive file system and there's no enforceable convention in modding).
Due to this reason, the resulting compiled binary will be GPLv2-licensed unless the first file is rewritten or the `ulockmgr` files removed prior to building (hint: they may be provided by your FUSE distribution.)