Not really what I meant; apps like those and many others would benefit from integration, but those two are apps in their own right with opinionated choices in UI (and implementation) and not really good for pedagogical purposes.
If a block of sample code meant to demonstrate how a library works doesn’t have any recurring daily users, it doesn’t matter—there are no unmet expectations. It’s sample code.
A codebase that doesn’t have as its foremost concern serving as an example to learn from because it instead concerns itself with the ongoing development/maintenance of an app designed for widespread real-world use, that’s going to be less helpful than sample code that knows it’s purpose is pedagogical. The evident concerns from reading the code aren’t going to be about the simplicity of the code or whether people find it easy to understand and incorporate its ideas into apps of their own. Development will be driven like the development of any other app where the point is for the end user (whether programmer or not) to evaluate its UI and featureset and choose or not choose to use it on that basis.