this is a very important lesson. I remember the frustration of dealing with the Gradle and whatever was the name of the DSL used by Fastlane. Gradle especially kept changing so documentation was never really useful and there was zero help from the tooling
And at least the last time I used it in anger (which was, granted, perhaps double digit years ago), the docs started out with and loudly proclaimed "here's how you write your own tasks!" Wait, what? I want to have a build system do at least the 80% case with minimal/zero work; why am I jumping right in to my bespoke needs?
Not sure if this was just bad doc, or the tool actually didn't do the 80% very well then or what, but it's stuck with me.
That's mostly my experience with ruby, too: you can type anything, don't worry about it!
I wanted to mention that Gradle since I think about version 7 supports mostly static typing via Kotlin but regrettably it's lipstick on a pig since almost inevitably one needs to interact with the Groovy side of the house and then all bets are off
