package: rework to make consistent with upstream nixpkgs version

flake.nix

@@ -45,7 +45,10 @@
     let
       systems = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
       forAllSystems = f: builtins.listToAttrs (map (name: { inherit name; value = f name; }) systems);
-      mkPackage = pkgs: import ./package.nix { inherit pkgs inputs; };
+      mkPackage = pkgs: pkgs.callPackage ./package.nix {
+        inherit (inputs.nix.packages.${pkgs.stdenv.system}) nix;
+        inherit (inputs.cachix.packages.${pkgs.stdenv.system}) cachix;
+      };
       mkDevShellPackage = config: pkgs: import ./src/devenv-devShell.nix { inherit config pkgs; };
       mkDocOptions = pkgs:
         let

package.nix

@@ -1,12 +1,25 @@
-{ pkgs, inputs, build_tasks ? false }:
+{ lib
+, stdenv
+, makeBinaryWrapper
+, installShellFiles
+, rustPlatform
+, nix
+, cachix
+, darwin
+, sqlx-cli
+, openssl
+, pkg-config
+, glibcLocalesUtf8
+, build_tasks ? false
+}:
 
-pkgs.rustPlatform.buildRustPackage {
+rustPlatform.buildRustPackage {
   pname = "devenv";
   version = "1.3.1";
 
   # WARN: building this from src/modules/tasks.nix fails.
   # There is something being prepended to the path, hence the .*.
-  src = pkgs.lib.sourceByRegex ./. [
+  src = lib.sourceByRegex ./. [
     ".*\.cargo(/.*)?$"
     ".*Cargo\.toml"
     ".*Cargo\.lock"
@@ -30,45 +43,42 @@ pkgs.rustPlatform.buildRustPackage {
   };
 
   nativeBuildInputs = [
-    pkgs.installShellFiles
-    pkgs.makeBinaryWrapper
-    pkgs.pkg-config
-  ] ++ pkgs.lib.optional (!build_tasks) pkgs.sqlx-cli;
+    installShellFiles
+    makeBinaryWrapper
+    pkg-config
+  ] ++ lib.optional (!build_tasks) sqlx-cli;
 
-  buildInputs = [ pkgs.openssl ]
-    ++ pkgs.lib.optional pkgs.stdenv.isDarwin pkgs.darwin.apple_sdk.frameworks.SystemConfiguration;
+  buildInputs = [ openssl ]
+    ++ lib.optional stdenv.isDarwin darwin.apple_sdk.frameworks.SystemConfiguration;
 
   # Force sqlx to use the prepared queries
   SQLX_OFFLINE = true;
   # A local database to use for preparing queries
   DATABASE_URL = "sqlite:nix-eval-cache.db";
 
-  preBuild = pkgs.lib.optionalString (!build_tasks) ''
+  preBuild = lib.optionalString (!build_tasks) ''
     cargo sqlx database setup --source devenv-eval-cache/migrations
     cargo sqlx prepare --workspace
   '';
 
   postInstall =
     let
-      inherit (inputs.nix.packages.${pkgs.stdenv.system}) nix;
-      inherit (inputs.cachix.packages.${pkgs.stdenv.system}) cachix;
-
-      localeArchiveFix =
-        pkgs.lib.optionalString (pkgs.stdenv.isLinux && (pkgs.glibcLocalesUtf8 != null)) ''
-          --set-default LOCALE_ARCHIVE ${pkgs.glibcLocalesUtf8}/lib/locale/locale-archive
+      setDefaultLocaleArchive =
+        lib.optionalString (glibcLocalesUtf8 != null) ''
+          --set-default LOCALE_ARCHIVE ${glibcLocalesUtf8}/lib/locale/locale-archive
         '';
     in
-    pkgs.lib.optionalString (!build_tasks) ''
+    lib.optionalString (!build_tasks) ''
       wrapProgram $out/bin/devenv \
         --prefix PATH ":" "$out/bin:${cachix}/bin" \
         --set DEVENV_NIX ${nix} \
-        ${localeArchiveFix} \
+        ${setDefaultLocaleArchive} \
 
       # TODO: problematic for our library...
       wrapProgram $out/bin/devenv-run-tests \
         --prefix PATH ":" "$out/bin:${cachix}/bin" \
         --set DEVENV_NIX ${nix} \
-        ${localeArchiveFix} \
+        ${setDefaultLocaleArchive} \
 
       # Generate manpages
       cargo xtask generate-manpages --out-dir man

src/modules/tasks.nix

@@ -1,7 +1,11 @@
 { pkgs, lib, config, ... }@inputs:
 let
   types = lib.types;
-  devenv = import ./../../package.nix { inherit pkgs inputs; build_tasks = true; };
+  devenv = pkgs.callPackage ./../../package.nix {
+    build_tasks = true;
+    inherit (inputs.nix.packages.${pkgs.stdenv.system}) nix;
+    inherit (inputs.cachix.packages.${pkgs.stdenv.system}) cachix;
+  };
   taskType = types.submodule
     ({ name, config, ... }:
       let