# This is a Nix flake
# It is written in the Nix expression language

    # Declare our own package

    # Declare our own package as a Nix 'derivation'

      # Our package name

      # Where the source code lives

      # Dependencies

      # The source code contains only the C file, so we 'manually' compile
      # gcc is available by default in pkgs.stdenv.mkDerivation

      # Installing is just copying the executable

h So, without further ado, let\'s build our package:
x nix build "$(dirname "${BASH_SOURCE[0]}")" -L
h Maybe there was no output\; this means that package was already built and put into the Nix store
x nix build "$(dirname "${BASH_SOURCE[0]}")" -L --rebuild
h By default, we get a ./result symlink
x find -L ./result
h And we can run our executable
x ./result/bin/wttr-delft

result