It's not good
to build on CachyOS (i only have this to test lmao) (it comes with zstd installed dw about it)
pacman -S base-devel cmake
git clone --recursive http://github.com/r1delta/revpk-mutated
mkdir -p revpk-mutated/build
cd revpk-mutated/build
cmake ..
make
based on revpk from https://github.com/mauler125/r5sdk and uses https://github.com/TinyTinni/ValveFileVDF this is mit licensed but i dont know how r5sdk licensing works so handle this at your own risk