first commit

shell.nix

@@ -0,0 +1,32 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+let
+  ocamlPackages = pkgs.ocaml-ng.ocamlPackages_5_3;
+in
+pkgs.mkShell {
+  name = "frost";
+  dontDetectOcamlConflicts = false;
+  nativeBuildInputs = with ocamlPackages; [
+    dune_3
+    findlib
+    merlin
+    menhir
+    ocaml
+    ocamlformat
+    odoc
+    crowbar
+  ];
+  buildInputs = with ocamlPackages; [
+    bos
+    cmdliner
+    fmt
+    fpath
+    menhirLib
+    prelude
+    sedlex
+  ];
+  shellHook = ''
+    export PATH=$PATH:${pkgs.lib.makeBinPath [
+    ]}
+  '';
+}