format and remove devshell

flake.nix

@@ -48,7 +48,7 @@
 
     overlays = {
       default = _: prev: self.packages.${prev.stdenv.hostPlatform.system} or {};
-      haiLib = self.haiLib;
+      inherit (self) haiLib;
     };
 
     apps = forAllSystems (pkgs: {
@@ -57,7 +57,6 @@
         program = lib.getExe (
           pkgs.writeShellApplication {
             name = "update";
-
             text = lib.concatStringsSep "\n" (
               lib.mapAttrsToList (
                 name: pkg:
@@ -104,20 +103,6 @@
       file = ./modules/nixos;
     };
 
-    devShells = forAllSystems (pkgs: {
-      default = pkgs.mkShell {
-        name = "devshell";
-
-        buildInputs = with pkgs; [
-          nix-update
-        ];
-
-        shellHook = ''
-          echo "Entering devshell!"
-        '';
-      };
-    });
-
     haiLib = import ./lib {inherit lib;};
 
     formatter = forAllSystems (pkgs: pkgs.alejandra);

lib/validators.nix

@@ -1,4 +1,4 @@
-{...}: let
+_: let
   inherit
     (builtins)
     filter