More strictly control what goes into elm.nix

elm.nix

@@ -1,8 +1,4 @@
-{ nixpkgs ? <nixpkgs>
-, config ? {}
-}:
-
-with (import nixpkgs config);
+{ lib, stdenv, elm, fetchElmDeps, uglify-js,  }:
 
 let
   mkDerivation =
@@ -17,10 +13,10 @@ let
     stdenv.mkDerivation {
       inherit name src;
 
-      buildInputs = [ elmPackages.elm ]
-        ++ lib.optional outputJavaScript nodePackages.uglify-js;
+      buildInputs = [ elm ]
+        ++ lib.optional outputJavaScript uglify-js;
 
-      buildPhase = pkgs.elmPackages.fetchElmDeps {
+      buildPhase = fetchElmDeps {
         elmPackages = import srcs;
         elmVersion = "0.19.1";
         inherit registryDat;
@@ -49,4 +45,4 @@ in mkDerivation {
   targets = ["Main"];
   srcdir = "./src";
   outputJavaScript = true;
-}
+}

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1701068326,
+        "narHash": "sha256-vmMceA+q6hG1yrjb+MP8T0YFDQIrW3bl45e7z24IEts=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "8cfef6986adfb599ba379ae53c9f5631ecd2fd9c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,22 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+    let
+      pkgs = import nixpkgs { inherit system; };
+      bergamot-elm = import ./elm.nix {
+        inherit (pkgs) lib stdenv;
+	inherit (pkgs.elmPackages) fetchElmDeps elm;
+	inherit (pkgs.nodePackages) uglify-js;
+      };
+    in
+      {
+        packages = { inherit bergamot-elm; };
+        defaultPackage = bergamot-elm;
+      }
+    );
+}