Recommended way to break the hard links so that I can modify packages locally for debugging?

[SystemParadox]

Sometimes I need to mess around with a package inside node_modules for debugging purposes. Often this is just to add more logging, but sometimes it's more than that.

However, because of the hard links created by pnpm these changes leak to any other project that's using that particular module+version which is obviously really bad.

What is the recommended way to deal with this situation?

I think the answer is to set package-import-method=copy in .npmrc but unfortunately if it's already been installed with hardlink then pnpm i doesn't unlink this, you have to rm -rf node_modules; pnpm i to update it.

Is there a better way?

(filesystem is ext4 btw so no clone support)