idoo P&L: -4.8 (≃ -320 CNY)
Odoo, namely, https://odoo.com, is a web framework, just like Django, with its own PostgreSQL ORM, and MVC framework, but already with a financial accounting framework, and many ready-made office apps, making it an ideal replacement for something like corporate cloud-based office suites (like Google Work, Microsoft Office). Yet, it is also great as a replacement for Wordpress. Modules are easy to write, like apps in Django, so you can re-use your Python knowledge.
Ultimately, it's great as a real life gamifier, making life a little like UFO Enemy Uknown, and enabling to manage one's bases, like what I wanted with https://github.com/mindey/yukia, and also, it may even help everyone to sync politically, as I've described here on sl4.org.
However, it is not yet very easy to use. So, I think, it's worth making a video series on YouTube about using it, and this project will be about that.