import (fetchTarball {
  url = "https://github.com/NixOS/nixpkgs/archive/17812e653d89c46d68b7b10e290b1c16758f4e47.tar.gz";
  sha256 = "1zcb70dyfqc8l2ywpbvxmpfshapdi0g365m3rhmwpagqg47pnyxs";
})

import (fetchTarball {
  url = "https://github.com/NixOS/nixpkgs/archive/3c0e3697520cbe7d9eb3a64bfd87de840bf4aa77.tar.gz";
  sha256 = "1vx7kyaq0i287dragjgfdj94ggwr3ky2b7bq32l8rkd2k3vc3gl5";
})

Update ref for ocamlformat 0.15
[nix] Update ref for ocamlformat 0.15

Co-authored-by: Théo Zimmermann <e1d8818cf57db40c64760cc1689d30471aa2e406@gmail.com>
