I like the look of the tutorials you've linked to! This definitely seems like a useful format. One worry I always have when a new tool like this comes out, esp

I like the look of the tutorials you've linked to! This definitely seems like a useful format. One worry I always have when a new tool like this comes out, especially as a SaaS: what's the business model? It's just too much of an investment to create something only to have the platform disappear.