The to-do app to organize your life.
Also one of the two wild South American camelids which live in the high
alpine areas of the Andes and a relative of the llama.
Vikunja is an Open-Source, self-hosted To-Do list application for all platforms. It is licensed under the AGPLv3.
Etherpad is a highly customizable open source online editor providing collaborative editing in really real-time.