From 621e381519e1b5331aae6c848cc9cf8514ff944e Mon Sep 17 00:00:00 2001
From: Akira Komamura <akira.komamura@gmail.com>
Date: Sat, 16 Nov 2024 13:00:51 +0900
Subject: [PATCH 1/3] fix(ocaml): Provide executables via nativeBuildInputs

---
 ocaml/flake.nix | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/ocaml/flake.nix b/ocaml/flake.nix
index 68cb4ee..50e023b 100644
--- a/ocaml/flake.nix
+++ b/ocaml/flake.nix
@@ -47,10 +47,9 @@
             src = self.outPath;
 
             # Uncomment if you need the executable of dream_eml during build
-            # preBuild = ''
-            #   PATH="${ocamlPackages.dream}/bin:$PATH"
-            #   export PATH
-            # '';
+            # nativeBuildInputs = [
+            #   ocamlPackages.dream
+            # ];
 
             buildInputs = with ocamlPackages; [ ocaml-syntax-shims ];
 

From 207a885e695592eadf831e70976490e5b8ce8a92 Mon Sep 17 00:00:00 2001
From: Akira Komamura <akira.komamura@gmail.com>
Date: Sat, 16 Nov 2024 13:03:00 +0900
Subject: [PATCH 2/3] style(ocaml): Apply the overlay using extend for
 simplification

---
 ocaml/flake.nix | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/ocaml/flake.nix b/ocaml/flake.nix
index 50e023b..41ecb19 100644
--- a/ocaml/flake.nix
+++ b/ocaml/flake.nix
@@ -23,10 +23,7 @@
         nixpkgs.lib.genAttrs (import systems) (
           system:
           let
-            pkgs = import nixpkgs {
-              inherit system;
-              overlays = [ ocaml-overlays.overlays.default ];
-            };
+            pkgs = nixpkgs.legacyPackages.${system}.extend ocaml-overlays.overlays.default;
           in
           f {
             inherit pkgs system;

From b8f39c693e03f3f07e744903e028fa32584e5f2f Mon Sep 17 00:00:00 2001
From: Akira Komamura <akira.komamura@gmail.com>
Date: Sat, 16 Nov 2024 13:05:41 +0900
Subject: [PATCH 3/3] docs(ocaml): Add a comment

---
 ocaml/flake.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ocaml/flake.nix b/ocaml/flake.nix
index 41ecb19..be43dc1 100644
--- a/ocaml/flake.nix
+++ b/ocaml/flake.nix
@@ -27,6 +27,9 @@
           in
           f {
             inherit pkgs system;
+            # You can set the OCaml version to a particular release. Also, you
+            # may have to pin some packages to a particular revision if the
+            # devshell fail to build. This should be resolved in the upstream.
             ocamlPackages = pkgs.ocaml-ng.ocamlPackages_latest;
           }
         );