Add README and make some sanity changes.

README.md

@@ -0,0 +1,30 @@
+# DNSControl Configuration
+
+## Overview
+
+| Domain         | Purpose                        |
+|----------------|--------------------------------|
+| `arirex.me`    | Primary domain                 |
+| `achl.fr`      | Legacy domain                  |
+| `arirex.email` | Email proxy for primary domain |
+| `achlfr.email` | Email proxy for legacy domain  |
+
+## Usage
+
+```bash
+# Unlock credentials
+git-crypt unlock
+
+# Check planned changes
+dnscontrol preview
+
+# Apply DNS changes
+dnscontrol push
+```
+
+## Update
+
+```bash
+nix flake update
+dnscontrol write-types
+```

dnsconfig.js

@@ -30,9 +30,14 @@ DEFAULTS(
   }),
 );
 
+
 /* ****************************************************************************************************************** *\
-  Primary Domains
+  Managed Domains
 \* ****************************************************************************************************************** */
+
+/* -------------------------------------------------------------------------- *\
+Primary Domains
+\* -------------------------------------------------------------------------- */
 D("arirex.me", REG_101DOMAIN,
   ALIAS("@", rexbox),
   protonmail("6fd60590dc31588ca5a85c7e311649ff5f93cab2", "dodai2qaszneyk5jeyfloq24ttjcqfer2gdopw3nfmxn3bugtw2hq"),
@@ -59,9 +64,9 @@ D("achl.fr", REG_101DOMAIN,
 
 );
 
-/* ****************************************************************************************************************** *\
+/* -------------------------------------------------------------------------- *\
   Email Proxy Domains
-\* ****************************************************************************************************************** */
+\* -------------------------------------------------------------------------- */
 D("arirex.email", REG_101DOMAIN,
   simplelogin("ngmfowygibangqmiobjznfmjhxniyi"),
 );
@@ -136,9 +141,9 @@ cnames("arirex.me", rexcloud, [
  * @param {string[]} records - Array of "comment@subdomain" strings
  */
 function cnames(domain, target, records) {
-  records.forEach(function(r) {
+  records.forEach(function(rec) {
-    var parts = r.split("@");
+    var part = rec.split("@");
-    D_EXTEND(domain, CNAME(parts[1], target, CF_COMMENT(parts[0])));
+    D_EXTEND(domain, CNAME(part[1], target, CF_COMMENT(part[0])));
   });
 }