One of the packages in my monorepo has a dev script that runs a dev server. It's supposed to be an example that shows how to use libraries published from monorepo. When launch that dev script using lerna run --scope <pkg-name>, it works fine. But after publishing that package to npm registry, I tried using those libraries from a totally independent repo and same dev script failed with errors. Then I went back to the monorepo and ran npm run dev -w <pkg-name> from there - it failed with the same error.

So a question is - what does lerna run do differently? From my limited and wrong understanding, if the scope is specified as single package there's lerna run and npm run -w might as well be equivalent. I could just use npm run for this case, but it seems useful to understand this, if I'm going to use lerna further. Docs on lerna run do not seem to mention anything. Maybe I should read the code, but felt like constructing this question first. Answer would be appreciated. Let me know if you need more details about the error.