[mtphil]

Just out of curiosity, having never encountered any issues myself - what sort of issues have you run into with Yarn in CI/prod ?

[abritinthebay]

Reliability, mostly. Also some strange cases where it would just plain fail (but then work if re-run).

We do use private scoped packages a lot so that might have some bearing on it.

[nailer]

I use private scoped packages (and monorepos, and yarn) too, and have generally had a fine time with it.

Would be interested in specifics of your reliability and failure problems too.

[qudat]

We just started using yarn workspaces and are running into weird issues where our private scoped packages don't always get installed on `yarn install`.

Yarn claims to be deterministic but I still need to `rm -rf node_modules` regularly when I run into weird build errors. It's quite strange.

[abritinthebay]

Well... I don’t use it anymore because frankly, there’s no need.

[_ea1k]

Is there any chance that you are using npm to install yarn?

I had mistakenly setup our CI to do that at one point and it caused a lot of hard to debug problems.

[abritinthebay]

I was not, but even if I was that speaks to Yarn’s quality imo because they recommend that as an option.