Side project: there is no client, I built it to study or to experiment.
Personal project built following a course: a Q&A platform for developers, modelled on Stack Overflow, with social login, votes, badges, global search and a first answer suggested by AI.
What I explored. A complete app with users and data: authentication with email, Google and GitHub, Next.js server actions for operations, MongoDB, a rich editor for questions and answers and an AI model that suggests a first answer.
What it helped with later. How to structure permissions, data and server-side actions, which I find again in every project with a private area.