Doesn’t the bundler already do tree shaking? Optimizing via dependency listing is very wrong.

Tree shaking is less than reliable... for it to work well, all the dependencies need to be TS/ESModule imports/exports and even then may not shake out properly.

It helps, but not as much as judicious imports. I've been using Deno more for my personal projects which does have a pretty good @std library, though I do think they should keep methods that simply pass through to the Deno runtime, and should probably support working in Node and Bun as well.