Harmonie Musikschule

An end-to-end school-management system and marketing platform we built for Harmonie Musikschule in Mannheim. Developed with ASP.NET Core 9 Web API (EF Core, Identity, JWT) and React + TypeScript (Vite). It covers student and teacher records, a weekly lesson calendar, slot booking based on teacher availability, lesson cancellation and attendance tracking. Separate dashboards for admin, teacher and student roles, plus an instrument-sorted video library and a web shop. All authorization is enforced server-side.