Added ros template to devenv

data/devenv/templates/ros/flake.nix

@@ -0,0 +1,39 @@
+{
+  description = "Development flake for this ROS project";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+
+    ros-overlay.url = "github:lopsided98/nix-ros-overlay";
+    ros-overlay.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+
+  outputs = { self, nixpkgs, flake-utils, ros-overlay }:
+    flake-utils.lib.eachDefaultSystem (system: let
+
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [ ros-overlay.overlays.default ];
+      };
+
+    in {
+      devShells.default = pkgs.mkShell {
+        nativeBuildInputs = with pkgs; [
+          # Non-ROS packages
+        ] ++ (with rosPackages.humble; [
+          # ROS packages
+          (buildEnv {
+            paths = [
+              ros-environment
+              ros2topic
+              ros2node
+              geometry-msgs
+           ];
+          })
+        ]);
+
+      };
+    });
+}