diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..452bd45
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,2 @@
+DEVSHELL_ATTR=default
+source ./packages/build-support/activate-shell
diff --git a/packages/projects.nix b/packages/projects.nix
index e25e5de..34eccee 100644
--- a/packages/projects.nix
+++ b/packages/projects.nix
@@ -69,6 +69,14 @@ in
   };
 
   devShells = {
+    default = let
+      flakePkgs = inputs.self.packages.${system};
+    in mkShell {
+      tools = with flakePkgs; [
+        agenix
+        deploy-rs
+      ];
+    };
     reflex-cache = let
       inherit (inputs.self.packages.${system}) reflex-cache;
     in mkShell {