refactor(nix)!: more minmal shell; remove package (catppuccin#1025)

flake.nix

@@ -1,25 +1,20 @@
 {
   description = "Catppuccin userstyles";
 
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs";
-    flake-utils.url = "github:numtide/flake-utils";
-    nix-deno.url = "github:nekowinston/nix-deno";
-  };
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
 
-  outputs = {
-    nixpkgs,
-    flake-utils,
-    ...
-  } @ inputs:
-    flake-utils.lib.eachDefaultSystem (system: let
-      pkgs = import nixpkgs {
-        inherit system;
-        overlays = [inputs.nix-deno.overlays.default];
-      };
-    in {
-      packages.default = pkgs.callPackage ./nix/default.nix {};
-
-      devShells.default = pkgs.callPackage ./nix/shell.nix {};
-    });
+  outputs =
+    { nixpkgs, ... }:
+    let
+      forAllSystems =
+        function:
+        nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed (
+          system: function nixpkgs.legacyPackages.${system}
+        );
+    in
+    {
+      devShells = forAllSystems (pkgs: {
+        default = pkgs.callPackage ./shell.nix { };
+      });
+    };
 }

shell.nix

@@ -0,0 +1,14 @@
+{
+  deno,
+  typos,
+  mkShellNoCC,
+  nodePackages,
+  ...
+}:
+mkShellNoCC {
+  packages = [
+    deno
+    typos
+    nodePackages.prettier
+  ];
+}