Replaces user level nixpkgs channel with Nix package from this flake

flake.nix

@@ -41,8 +41,9 @@
       devShells.${system}.default = pkgs.mkShell {
         buildInputs = with pkgs; [ (import home-manager { inherit pkgs; }).home-manager just ];
         shellHook = ''
-          ln -s ${pkgs.path} .direnv/nixpkgs;
-          export NIX_PATH=`pwd`/.direnv;
+          export NIX_PATH=$HOME/.hm-nixchannels;
+          mkdir -p $NIX_PATH;
+          ln -f -s ${pkgs.path} -T $NIX_PATH/nixpkgs;
         '';
       };
     };

home.nix

@@ -21,7 +21,10 @@
       cat = "${pkgs.bat}/bin/bat";
     };
 
-    sessionVariables = { EDITOR = "micro"; };
+    sessionVariables = {
+      EDITOR = "micro";
+      NIX_PATH = "$HOME/.hm-nixchannels";
+    };
 
     file."Applications/Home Manager Apps".source = let
       apps = pkgs.buildEnv {