Linking in WSL uses system libraries

[mimed95]

When attempting to adjust linking paths of libraries such as OpenSSL or libcrypto under WSL Ubuntu 22.04 with the "-L" flag the build will use the system libraries instead of the provided ones by the development environment.

[aaronmondal]

Using -L for paths like /usr/lib would probably override all the nix dependencies, potentially linking incompatible libc etc. As temporary workaround I think passing the explicit path to nonhermetic dependencies in link_flags should work.

Technically the current behavior is WAI, but I can see how this can be confusing. I've added extensibility for the flakes so that project-specific dependencies can be loaded via the nix store.

[aaronmondal]

Should be resolved by e19d31f and 70da306.