I've looked into using educative.io for course creation. There is a little bit more of politics involved when creating the course because of the expectation of high quality code. Also they use internal Docker tools to be able to create the interactive coding environments.

Slip, which I am using right now, is more straightforward and the ability to have code snippets in line which flows with the material is awesome.

Also, Slip is working on integrating with multiple platforms (StackBlitz, Figma, Repl, CodeSandbox) so we can leverage those platforms as well.

Both have a great offering and creating a course is "free" so would recommend giving both a try if you're looking to create a course.

Great question! It's similar.

We're a brand new startup. Only a few months old and we're currently a team of just 2 people.

One way we plan to differentiate is by being the easiest tool to use on the author side.

We've seen some early users already spend 10s of hours in their course per week which is really promising.

We're actively thinking of ways to transform awesome developers into great course teachers.

One hack we found was that a lot of great devs don't realize how valuable their knowledge is. We added a presale feature to encourage our most promising authors to build an amazing course.

Not op but afaik all courses from educative are from them, you can submit your own on slip

The last time I checked, they allow others to create a course, but needs to be approved by them.