--- a/mod_server_info/README.md	Fri Feb 23 13:02:33 2024 +0000
+++ b/mod_server_info/README.md	Fri Feb 23 22:47:05 2024 +0000
@@ -14,37 +14,52 @@
 
 Everything configured here is publicly visible to other XMPP entities.
 
+**Note:** This module was rewritten in February 2024, the configuration is not
+compatible with the previous version of the module.
+
 ## Configuration
 
-The `server_info` option accepts a list of dataforms. A dataform is an array
-of fields. A field has three required properties:
+The `server_info_extensions` option accepts a list of custom fields to include
+in the server info form.
+
+A field has three required properties:
 
 - `type` - usually `text-single` or `list-multi`
-- `var` - the field name
+- `var` - the field name (see below)
 - `value` the field value
 
 Example configuration:
 
 ``` lua
 server_info = {
-
-	-- Our custom form
-	{
-		-- Conventionally XMPP dataforms have a 'FORM_TYPE' field to
-		-- indicate what type of form it is
-		{ type = "hidden", var = "FORM_TYPE", value = "urn:example:foo" };
+	-- Advertise that our maximum speed is 88 mph
+	{ type = "text-single", var = "speed", value = "88" };
 
-		-- Advertise that our maximum speed is 88 mph
-		{ type = "text-single", var = "speed", value = "88" };
-
-		-- Advertise that the time is 1:20 AM and zero seconds
-		{ type = "text-single", var = "time", value = "01:21:00" };
-	};
-
+	-- Advertise that the time is 1:20 AM and zero seconds
+	{ type = "text-single", var = "time", value = "01:21:00" };
 }
 ```
 
+The `var` attribute is used to uniquely identify fields. Every `var` should be
+registered with the XSF [form registry](https://xmpp.org/registrar/formtypes.html#http:--jabber.org-network-serverinfo),
+or prefixed with a custom namespace using Clark notation, e.g. `{https://example.com}my-field-name`. This is to prevent
+collisions.
+
+## Developers
+
+Developers of other modules can add fields to the form at runtime:
+
+```lua
+module:depends("server_info");
+
+module:add_item("server-info-fields", {
+	{ type = "text-single", var = "speed", value = "88" };
+	{ type = "text-single", var = "time", value = "01:21:00" };
+});
+```
+
+Prosody will ensure they are removed if your module is unloaded.
+
 ## Compatibility
 
-This module should be compatible with Prosody 0.12, and possibly earlier
-versions.
+This module should be compatible with Prosody 0.12 and later.