I recently installed the open-source Slack alternative Mattermost on a personal t2.micro Ubuntu instance in AWS. So far, I love it and thought I would share my experiences in using EC2, RDS, and S3 to host the application. Mattermost has their own install guide which is pretty thorough and very helpful. By using a db.t2.micro RDS instance (free tier!) as the database server, it actually simplifies many of the steps. Launch an ...