removed jupyter and fixed typos

flake.nix

@@ -1,20 +1,13 @@
 {
   description = "Your jupyenv project";
 
-  nixConfig.extra-substituters = [
-    "https://tweag-jupyter.cachix.org"
-  ];
-  nixConfig.extra-trusted-public-keys = [
-    "tweag-jupyter.cachix.org-1:UtNH4Zs6hVUFpFBTLaA4ejYavPo5EFFqgd7G7FxGW9g="
-  ];
-
   inputs = {
     #treefmt-nix.url = "github:Qubasa/treefmt-nix";
     treefmt-nix.url = "github:qubasa/treefmt-nix";
     flake-parts.url = "github:hercules-ci/flake-parts";
     flake-parts.inputs.nixpkgs-lib.follows = "nixpkgs";
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    jupyenv.url = "github:tweag/jupyenv";
+
   };
 
   outputs =
@@ -27,33 +20,16 @@
       ];
       perSystem =
         {
-          lib,
-          system,
           pkgs,
           ...
         }:
-        let
-          inherit (inputs.jupyenv.lib.${system}) mkJupyterlabNew;
-          jupyterlab = mkJupyterlabNew (
-            { ... }:
-            {
-              # nixpkgs = nixpkgs;
-              imports = [ (import ./kernels.nix) ];
-            }
-          );
-        in
+
         {
           devShells.default = pkgs.mkShell {
             buildInputs = with pkgs; [
               python3
             ];
           };
-          packages = {
-            inherit jupyterlab;
-          };
-          packages.default = jupyterlab;
-          apps.default.program = "${jupyterlab}/bin/jupyter-lab";
-          apps.default.type = "app";
         };
     };
 }