Migrate from yarn 1.x to pnpm #5084
Merged
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https://pnpm.io/ is a different package manager for JS code, similar to yarn and npm. Its main advantage is saving a lot of disk space if a developer has multiple projects using similar dependencies, because it only stores a single copy of each dependency version on the disk, instead of one-per-project. This ultimately also leads to small speed savings.
I've been successfully using pnpm for a while on several other projects and it's been working quite well so far.
The main downside for us is that the official Heroku Node.js buildpack does not support pnpm (yet). That means we need to use an unofficial buildpack that does support it. We're using an unofficial buildpack for Rust too though, so I'm not too worried about the security implications and the pnpm buildpack appears to be maintained by a legitimate company.