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> you always get v1 when you install (which I never understood)

Yeah, they really wanted you to install yarn's source to your repo, which is why they don't let you `npm install` yarn v2 (or higher). That's maybe great for monorepos, but personally I find it ugly.

Thankfully now you can use `corepack`, which is shipped with npm. This way you can specify a version of yarn in packages.json, in the `packageManager` field. That is, without committing yarn's source to your repo.

I am learning this just now from this comment, so I think you are right.

Same here. I haven't done frontend in a few years now but I was shocked when the top comment was saying most people don't even use Yarn 2. I had no idea Yarn was past 1.x.

I like that Yarn 4 is installed into the project directory.

This way you always have the right version when cloning a random Yarn repo.

Always having the right version is nice. However, you can get similar benefits with a shorter bootstrap script. Personally I prefer this because there's less third party code duplicated directly to your own repo.