Noel Welsh

I don't think most of that stuff is needed any more. In the book I'm using this build.sbt, which is quite minimal: https://github.com/noelwelsh/making-eyes/blob/master/_calculator-service/build.sbt

Yes, I think we'd eventually like to rewrite all of that content.

Thanks for bringing this up. I think Figure 3.7 is in error. I'm going to leave this up so when we (eventually) get around to this part of the book...

This is all sorted out now.

This is an issue with this case study (and why I now think it's not a good example of using type classes): it requires two different type class instances on...

This is fixed, a mere 7 years after it was reported! I use `display` and `print` as the method names.

Please leave it open. I am working on the book, and intend to look at all the open PRs when I get to the relevant sections. I just can't afford...

The mailing list at https://www.scalawithcats.com/ is the best place to stay up-to-date. I post there when there is something to announce, and people can access the current draft. Should be...

I'm happy to work on this issue if someone can tell me what the design should be.

I'll work on something and then we can discuss in a PR.