Integrate Nix

[gatoWololo]

I need sudo to build dune. I tried adding sudo to default.nix under buildInputs, but I get an issue with the owner of sudo:

>  nix-build default.nix
these derivations will be built:
  /nix/store/pvn8p8y8kvvgfhlc4a1q0z75cpwq9dkh-dune-1.0.drv
building path(s) ‘/nix/store/lmv92mliamf24h5yvnynlqn1zw7a7q61-dune-1.0’
sudo: /nix/store/w9rs11zhvn6y4a0cs252qdnvqfr2zmp2-sudo-1.8.19p2/bin/sudo must be owned by uid 0 and have the setuid bit set
builder for ‘/nix/store/pvn8p8y8kvvgfhlc4a1q0z75cpwq9dkh-dune-1.0.drv’ failed with exit code 1
error: build of ‘/nix/store/pvn8p8y8kvvgfhlc4a1q0z75cpwq9dkh-dune-1.0.drv’ failed

Without sudo it fails to find it when calling builder.sh. I'm following this blog for creating my own Nix expressions.