Almost as clean as it could be, but was forced to set `LD_LIBRARY_PATH` to work around a `Libdl` failure that is unique to v1.0.x.
Relevant patches lifted from the `release-1.6` branch of my Julia fork: https://git.sr.ht/~ninjin/julia-nix/tree/release-1.6
Makes the top-level directory organisation easier with an increasing number of patches.