This project is the long-running mini-project for the 8-week plan.

• add tasks
• list tasks
• complete tasks
• delete tasks
• save/load JSON
• custom validation and storage errors
• optional rich output when installed

./venv/bin/python task-tracker/main.py add "Review dataclasses" --priority high
./venv/bin/python task-tracker/main.py list
./venv/bin/python task-tracker/main.py complete 1
./venv/bin/python task-tracker/main.py delete 1

• Data is stored in task-tracker/tasks.json by default.
• Set TASK_TRACKER_DATA if you want a different file path.
• The code is intentionally small and readable so you can study it.