btw.so

btw.so is an open-source personal website builder that allows users to create blogs and notes. It offers a writing interface, which implies a rich text editor. While it doesn't explicitly mention a recommendation engine or monetization model like Medium, it focuses on enabling writers to publish and share content, which aligns with the core idea of an online publishing platform. The platform also supports user profiles and the ability to share content, and the blog section uses tags for categorization. It lacks explicit features for reader engagement metrics, membership monetization, or a sophisticated distribution engine as described for Medium.