Poa.st is a social media website that allows users to post short messages, called poasts, and interact with other users. Poa.st is part of the fediverse, a network of decentralized and open source platforms that communicate with each other. Poa.st runs on Pleroma and Soapbox, two software projects that enable users to create their own social media servers. Poa.st is known for its controversial and edgy content, as well as its privacy features.