dart-tagtree

If you have no plans to maintain hobby code, you should discourage usage. Say it right up front: "TagTree is unsupported and not meant for use in a production Dart application, unless you're willing to fork the code and fix any bugs you find yourself." [1] Or if a project is widely used but difficult to contribute to, you should say so up front, like this: "Contributing code is one of the more difficult ways to contribute to Guava, and is almost never what the project really needs most [...] We know it's tempting to submit code before the feature is accepted, but this is not always a good use of your time." [2] People tend to over-promise because that's what they see other open source projects doing. But you don't have to be an evangelist just because everyone else is. If you're not committed to doing something, don't sell it. Real leader

Yes but it's very experimental: https://github.com/google/dart-tagtree/

If you're using Dart, I have an experimental implementation: https://github.com/google/dart-tagtree I'm sure others are experimenting as well, so we should see more implementations soon.