Why use many SDKs when you can have one? Trixnity is not only cross platform capable, but also suitable for clients, bots, servers, appservices or anything in between (e.g. proxy). This talk shows how this is even possible and what challenges there were to make it possible. This talk gives a brief introduction why Trixnity has emerged as yet another Matrix SDK. It shows what Trixnity does differently and why. For example, a cache on top of the database was implemented by accident, database transactions are saved asynchronously and timeline events are handled in a special way.