wired-unwell/yaer ? reverse-engineered prompt

I want you to build out this repository as a learning playground for small Python projects, keeping it simple and experimental rather than polished.

Please make the main pieces work cleanly, especially a task tracker command line app that saves tasks in plain JSON, and a to do list API that uses Flask and SQLite. I’d like the code to be easy to read, with clear separation between the little standalone drafts, tutorial examples, and the more complete backend projects.

Make the apps usable from the command line or through basic HTTP requests, with sensible default behavior and helpful messages when something goes wrong. If you need to check current Flask or Python docs online, feel free to do that. Also add a short README style guide for how to run each part locally, since this repo is mainly for self study and practice.