forem

Fully customizable under AGPL license, allowing organizations to modify and self-host the platform, as evidenced by its use in dev.to and other communities.

Handles high traffic and engagement from large communities like dev.to, with a focus on stability and performance in its architecture.

Built on Rails and Preact, offering a robust backend and responsive frontend, facilitating development with familiar frameworks.

Includes out-of-the-box tools for articles, discussions, and professional profiles, reducing the need for additional integrations.