# Electron Infrastructure Overview
#### `clerk` - [Repository](https://github.com/electron/clerk)
Clerk ensures that release notes can be generated from PRs by looking for a release note in the PR description.
#### `unreleased` [Repository](https://github.com/electron/unreleased)
system allows users to query information relating to release branches on a desired repository.
#### `trop` - [Repository](https://github.com/electron/trop)
Trop is a GitHub App built with probot that automates the process of backporting features and bugfixes.
#### Roller - [Repository](https://github.com/electron/roller)
Roller is a service that automates the process of updating major dependencies in Electron.js.
#### Sudowoodo - [Repository](https://github.com/electron/sudowoodo)
This bot automates the end-to-end release system for Electron.
#### Cation - [Repository](https://github.com/electron/cation)
Cation is Electron's PR monitoring bot - it helps mandate Electron's 24-hour waiting time on new PRs.
#### `metadumper` - [Repository](https://github.com/electron/metadumper)
This service runs on Heroku and helps us generate the https://atom.io/download/electron/index.json file.
#### `symbol-server` - [Repository](https://github.com/electron/symbol-server)
This service lets you use S3 as a Windows symbol server for debugging Windows-based applications.
#### `update-server` - [Repository](https://github.com/electron/update.electronjs.org)
A free service that makes it easy for open-source Electron apps to update themselves.
#### `not-goma` - [Repository](https://github.com/electron/not-goma)
Electron's adapted version of Google's distributed compiler service for open-source projects such as Chromium and Android.
#### `mission-control` - [Repository]((https://github.com/electron/mission-control))
A website that monitors CI flakes and lets maintainers trigger release-style builds.