pretalx is the open-source conference management platform that carries an event from its Call for Papers to the published schedule, keeping speakers, reviewers, and organisers in one system while hundreds of talk submissions, reviewer opinions, and schedule changes arrive up to the last minute. Publish a CfP that matches your event: your logo, your colors, your own CSS, separate deadlines per session type, and submissions in multiple languages on your own domain. Reviewers score and discuss proposals, anonymously or openly, and extra review questions can sort talks by track or experience level. Email templates in several languages go through an outbox, so every acceptance and rejection can be proofread before sending, and speakers get profile pages with their information and downloads. The schedule editor works around speaker availability and warns about double-booked speakers and clashes before anything goes public. Published schedules stay updateable, with an RSS feed and a public changelog for attendees, exports in frab-compatible JSON, XCal and XML, and a static HTML export for hosting elsewhere. Plugins and a REST API cover the odd requirements every real event invents. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.