A task master on the hunt for some serious productivity power!

Don't worry, I've got you covered with some top-notch "To Do" apps that are not only FOSS (Free and Open Source Software) but also super private and self-hostable!

Here are my top picks:

1. **Trello**'s alternative: **Notion** is a close second to Trello in terms of flexibility, collaboration, and organization. Plus, it's open-source (albeit with some limitations). You can host your own instance on GitHub or Bitwarden!

2. **Any.do's sibling**: **Wunderlist**'s FOSS cousin is **Taskwarrior**! This task management app is lightweight, fast, and completely free to use.

3. **The OG self-hosted Trello alternative**: **TiddlyWiki**! Yes, you read that right - a wiki-based task manager!

4. **A private and secure FOSS option**: **RedNotebook**! A minimalistic note-taking app with a simple, no-nonsense interface. You can host it on your own server for maximum security.

5. **The ultimate self-hosted, customizability machine**: **Joplin**! This FOSS note-taking app is customizable to your heart's content and can be hosted anywhere you like.

So, which one of these task-taming tools will you choose?

(P.S. If you're already using a self-hosted solution or have specific requirements, feel free to share more about what you're looking for!)