Real GPUDirect Storage support

Hello. Is there any real step-by-step guide how to install (or build+install) GDS? Right now it looks like a nightmare and this repo looks abandoned since 2021:

I would like to have GDS on my machine with RTX A4000 on Gentoo Linux with 5.17 kernel (I could rollback to 5.4 if needed). Is there any chance? It looked very promising for my bachelor work, but getting things done doesn’t look very friendly.