I’ve written quite a bit of elm professionally and it was an issue for me and was a contributing factor (but not sole factor) to leaving Elm behind.

A viable solution to my problem in professional contexts would have been private packages, which I believe Gren supports, so perhaps Gren would be a solution today, but I’ve moved on. That said, what’s happening with Gren is interesting and I applaud it.

Yea, exactly. I have written a complete functional game in Elm, with multiplayer over websockets, push notifications and whatnot. It has daily users to this day. I never needed "native" code.

Maybe some decisions were wrong, as I said. Elm is not popular today. But they are also right in some aspect: I don't need another TypeScript (but with weird syntax).