Beryl

Create Subtasks to break things down into bite-sized peices.

Make comments for longer notes about a task.

Add Labels to assign due dates, priorities, or contexts.

Modify your workflow with Plugins.

Tasks are stored in an open text format, so no matter what you can access them quickly.

Beryl is offline-first, so you'll never be locked out of your tasks.

The Beryl text format is fully compatable with standard markdown, so your tasks will look just right anywhere markdown is supported.