See also

Other developer resources:

wikitech.wikimedia.org
Wikitech is the home of technical documentation for WMF infrastructure, including the Server Admin Log.
doc.wikimedia.org
Browse our free and open-source software projects.
config-master.wikimedia.org
Conftool viewer for data from etcd, including for LVS pools.
schema.wikimedia.org
View schemas known to the Event Platform.
grafana.wikimedia.org
Visualisation of performance metrics from Prometheus and Graphite, including server utilization.
performance.wikimedia.org
Flame graphs and other performance reports and tooling.

Other workflow applications:

Phabricator
Issue tracker.
Gerrit Code Review
Git repository hosting and code review.
Continuous integration
Automated testing during and after code review.
Wikimedia Downloads
Content and data snapshots.
Wikimedia Releases
Software releases.
GitHub
One-way mirrors of repositories hosted on Gerrit, including MediaWiki core, and standalone projects.