Flake : Add blank template.

.config/linux/flake/template/Blank.nix

@@ -0,0 +1,29 @@
+{
+	description = "";
+
+	inputs = {
+		nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+	};
+
+	outputs = { self, nixpkgs } @inputs:
+	let
+		system = "x86_64-linux";
+		lib    = nixpkgs.lib;
+		pkgs   = nixpkgs.legacyPackages.${system};
+	in {
+		devShells.${system} = {
+			default = pkgs.mkShell {
+				inputsFrom = with self.devShells.${system}; [
+					custom
+				];
+			};
+
+			custom = pkgs.mkShell rec {
+				nativeBuildInputs = with pkgs; [
+				];
+				buildInputs = with pkgs; [
+				];
+			};
+		};
+	};
+}