remove devshells, prefer less deps

flake.nix

@@ -14,10 +14,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.flake-parts.follows = "flake-parts";
     };
-
-    devshell = {
-      url = "github:numtide/devshell";
-    };
   };
 
   outputs =
@@ -31,8 +27,9 @@
         flake-parts.flakeModules.modules
         inputs.clan-core.flakeModules.default
         inputs.clan-core.flakeModules.testModule
-        inputs.devshell.flakeModule
 
+
+        ./devShells/flake-module.nix
         ./clanServices/flake-module.nix
       ];
 
@@ -51,16 +48,5 @@
           };
         };
       };
-
-      perSystem = { system, pkgs, ... }: {
-        devshells = {
-          default = {
-            packages = [
-              pkgs.just
-              inputs.clan-core.packages.${system}.clan-cli
-            ];
-          };
-        };
-      };
     });
 }