Show HN: A free crash course platform for casual learners and educators

Hey HN! I've been developing on a text-centric crash course platform for three months. It's now available for everyone.

It's called Mindspace. Everything is free and will be forever. And all crash courses and discussions are licensed under CC BY-NC-SA 4.0 licence.

The platform is designed with simplicity and community openness in mind. And to keep all lessons concise and true to the definition of crash courses, there is an intentional character limit of 3000.

I'd love some feedback on this.