updated things in the flake so the dev shell works now again

flake.nix

@@ -2,7 +2,7 @@
   inputs = {
     fenix.url = "github:nix-community/fenix";
     naersk.url = "github:nix-community/naersk/master";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
   };
 
   outputs =
@@ -101,23 +101,27 @@
 
     in
     {
-      shell = eachSystem (buildTargets) (
+      devShells = eachSystem (builtins.attrNames buildTargets) (
         system:
         let
           pkgs = mkPkgs system null;
         in
-        pkgs.mkShell {
-          buildInputs = with pkgs; [
-            gcc
-            openssl.dev
-            pkg-config
-            libiconv
-            rustc
-            cargo
-            sea-orm-cli
-          ];
+        {
+          default = pkgs.mkShell {
+            name = "snooze-pal";
+            buildInputs = with pkgs; [
+              gcc
+              openssl.dev
+              pkg-config
+              libiconv
+              rustc
+              cargo
+              sea-orm-cli
+            ];
+          };
         }
       );
+
       packages = eachCrossSystem (builtins.attrNames buildTargets) (
         buildSystem: targetSystem:
         let