Add R template

template/r/flake.nix

@@ -0,0 +1,19 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, flake-utils, nixpkgs }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [
+            (rWrapper.override {
+              packages = with rPackages; [ tidyverse ];
+            })
+          ];
+        };
+      });
+}