I think the only language that's used in production where malicious dependencies can't do arbitrary effects is https://roc-lang.org https://roc-lang.org - but i

I think the only language that's used in production where malicious dependencies can't do arbitrary effects is https://roc-lang.org https://roc-lang.org - but it's a pre-0.1.0 language and as such its production usage is extremely minimal for now.