Comment by IshKebab

> Making it scalable is easy work since it is deterministic

I don't think that necessarily follows. Especially the language choice is almost impossible to change - look at Facebook, Dropbox, etc. Facebook ended up creating an entirely new language that only they use, because it was impossible to rewrite in another language.

Language choice (and probably database choice too) are essentially locked in from the start, and they do affect scaling.

Growing customers is probably harder, but I don't buy "do everything in hacky Bash scripts because you can fix it later". Nor do I think having solid foundations means you need to be less agile. Would Dropbox have been less successful if they wrote their backend in Typescript? I doubt it.