This software codebase initiated as a fork of prosody trunk (to be 0.9) merged with LW.Org's custom, patches initiating from August 7th 2012 (see first commit).

Being mainly based on Prosody a lot of Metronome's code is backport compatible, but as development progressed a good portion of it completely diverged from mainstream's to better suit LW.Org IM's needs.

The main differences from Prosody are:

• The Pubsub API and wrapped modules, mod_pubsub and mod_pep;
• The MUC API and wrapper plugins;
• Pluggable MUC configuration;
• Core stack: Modulemanager, Usermanager, Hostmanager, Module API, etc... ;
• How s2s streams are treated;
• The anonymous auth backend (mod_auth_anonymous & sasl.lua ineherent part);
• Included plugins, utils;
• The HTTP API;
• BOSH's JSON Padding and XEP-252 support.
• Extensive Microblogging over XMPP support.
• Daemon Control Utility;
• It does have only one server backend being libevent and has a hard dep. on lua-event.