diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
index d1ad11f..3a1e97c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ charts
 *.lock
 .agent-shell
 result
+.direnv
diff --git a/flake.nix b/flake.nix
index 9240958..cd2341b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -101,5 +101,9 @@
       # };
 
     };
+
+    devShells = nixpkgs.lib.genAttrs [ "x86_64-linux" "aarch64-linux" ] (system:
+      (import ./shells) { pkgs = nixpkgs.legacyPackages.${system}; }
+    );
   };
 }
diff --git a/shells/default.nix b/shells/default.nix
new file mode 100644
index 0000000..cc38e4b
--- /dev/null
+++ b/shells/default.nix
@@ -0,0 +1,3 @@
+{pkgs} @ args: {
+  default = import ./defaultShell.nix args;
+}
diff --git a/shells/defaultShell.nix b/shells/defaultShell.nix
new file mode 100644
index 0000000..6977c5a
--- /dev/null
+++ b/shells/defaultShell.nix
@@ -0,0 +1,17 @@
+{pkgs} @ args:
+pkgs.mkShell {
+  buildInputs = with pkgs; [
+    alejandra
+    (pkgs.writeShellScriptBin "homey-deploy-rpi-main" ''
+      nixos-rebuild switch \
+        --flake .#pi-main \
+        --target-host admin@192.168.1.100 \
+        --build-host admin@192.168.1.100 \
+        --sudo
+    '')
+    (pkgs.writeShellScriptBin "homey-build-rpi-main" ''
+      sudo nixos-rebuild switch \
+        --flake .#pi-main
+    '')
+  ];
+}