I'm often surprised by simple devices that are fully programmable. E.g. HD controllers. At least GSM isn't so cheap that they're all online.
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I hear people say that Go is often hard to search online (hence sometimes "Golang"), but the vast majority of language names are common words. Names with punctuation (C++, C#) are hard too.
Is this a big problem in practice? "Perl" isn't a dictionary word, but it's an exception.
Coming from JS or Python, imports in Rust feel weird. They're entirely optional aliases for fully qualified symbols, which are always available.
I don't know of many other languages where you can just start using libraries. Java is the only one I can think of.
I'm trying to decide what program I should show on the home page of my PL.
Hello World is too simple to show much syntax. Fibonacci is OK but the reader may not know what print(fib(10)) should show.
Maybe print(greet("World")) is better? It gives you a function definition at least.