Twake
Twake is a secure open source collaboration platform
...Manage your project timelines, create new tasks, move tasks based on their progress, and assign duties and deadlines to your team members. Easily access all your shared and stored documents using Twake's drag-and-drop file manager. Manage versions and labels, and edit your files with ease. Create team events, attach video conference links, relevant files and tasks, configure notifications for various members, and set deadlines for tasks.