templates/basic-overlay-flake: init template

flake.nix

@@ -347,6 +347,10 @@
           path = ./templates/basic-devshell;
           description = "Basic development shell template";
         };
+        basic-overlay-flake = {
+          path = ./templates/basic-overlay-flake;
+          description = "Basic overlay as a flake";
+        };
       };
 
       # No amount of formatters will make this codebase nicer but it sure does

templates/basic-overlay-flake/flake.nix

@@ -0,0 +1,17 @@
+{
+  description = ''
+    Basic flake template for an overlay with flake and traditional channels.
+  '';
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = inputs@{ self, nixpkgs, ... }:
+    let systems = inputs.flake-utils.lib.defaultSystems;
+    in inputs.flake-utils.lib.eachSystem systems (system: {
+      devShells.default =
+        import ./shell.nix { pkgs = import nixpkgs { inherit system; }; };
+    });
+}

templates/basic-overlay-flake/modules/README.adoc

@@ -0,0 +1,5 @@
+= Modules
+:toc:
+
+This is where various modules will go.
+Preferably, it should have a hierarchy that denotes where it belongs to (e.g., `./modules/nixos/MODULE.nix`, `./modules/home-manager/MODULE2.nix`).

templates/basic-overlay-flake/pkgs/default.nix

@@ -0,0 +1,4 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+# Import the packages in a centralized file to make it easier for integrating.
+{ }

templates/basic-overlay-flake/shell.nix

@@ -0,0 +1,5 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+with pkgs;
+
+mkShell { packages = [ ]; }