add: conform to support commit-disciline

README.md

@@ -6,4 +6,18 @@
 
 ---
 
-<sub>It is forbidden to modify this readme &rarr; read the comments in <a href="flake.nix"><code>flake.nix</code></a>!</sub>
+_A collection of common devshell modules specified via [`numtide/devshell`][devshell]._
+
+## Why?
+
+- Avoid repetition and reuse common best practices.
+- Provide a collection of components to "kill the toil" in the devshell in different scenarios.
+- Integrate DevShell concerns with the wider config management in `nix`: cross-reference variables.
+
+## Usage
+
+This is a prototype: consult usage with your Resident SRE.
+
+<sub>For more details: &rarr; read the comments in <a href="flake.nix"><code>flake.nix</code></a>!</sub>
+
+[devshell]: https://github.com/numtide/devshell

commit-msg.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+conform enforce --commit-msg-file \$1

flake.nix

@@ -48,11 +48,22 @@
     # --------------------------------------
     # Hooks: use the default company-wide git hooks
     # --------------------------------------
-    hooks = {extraModulesPath, ...}: {
+    hooks = {
+      extraModulesPath,
+      pkgs,
+      ...
+    }: let
+      nixpkgs' = nixpkgs.${pkgs.system};
+    in {
       inherit _file;
       imports = ["${extraModulesPath}/git/hooks.nix"];
       git.hooks.enable = true;
       git.hooks.pre-commit.text = builtins.readFile ./pre-commit.sh;
+      git.hooks.commit-msg.text = builtins.readFile ./commit-msg.sh;
+      packages = with nixpkgs'; [
+        conform
+        editorconfig-checker
+      ];
     };
 
     # --------------------------------------