I measured the linking times by running `cargo rustc --bin trinitrix --
-Z time-passes`, which resulted in following data:
`ld`:
37.794s to link
`mold`:
21.389s to link
The downside for now is, that this requires to have mold installed to
build trinitrix (The nix flake based direnv already has it) and that
mold only works on linux.
A nix flake is a reproducible way to describe the building process
to [nix](1).
See [the nix download page](1), on how to install nix. Afterwards
running `nix build` in the repository will result in a successful build.
Flakes and nix-commands are still experimental so they must be enabled
as described in [the corresponding wiki entry](2)
[1]: https://nixos.org/download.html#nix
[2]: https://nixos.wiki/wiki/Flakes#Enable_flakes.