Greg Weber

This is a massive improvement! Can this be taken out of Draft state? At least make it a configuration option?

@evgeniy-r this worked for me. I pulled it into the branch of unreleased changes that we use.

Thanks, I don't know if there are any users of this library right now.

wow, I was just thinking about making this change and now I see others have needed it for years. The existing error is often helpful, but not for a zero-downtime...

Do you want to use the name `singleton` or can you use `opoint`?

The concept here is probably that singleton implies a container of multiple items, so the `IsSequence` constraint may have been used to make that sensible. But that is limiting. It...

CanSingleton is the old naming of ad-hoc typeclasses. MonoPointed follows a law: `otoList . mconcat . map opoint == id` The pointed concept has a history in Haskell, but I...

Haskell tends towards category names rather than intuitive ones :). The current classy-prelude is mostly about using existing abstractions and names. But given that the pointed abstraction has almost no...

I think you can make it work with time travel by having a few special rules

I think you need to change the code to recognize when you are in development and doing time travelling. You could for example cache the original response from the side...