FWIW, I LOVE bundler and it absolutely kills me that npm, pip still haven't settled well in to the management of it.
Specifically, bundler allows side-by-side version installs and the program simply loads the version specified in the bundle.lock thus making the lock file the source of truth where as npm, pip, even poetry install whatever version exists at the path. This pushes the source of truth from the .lock to that path.
It's not the end of the world, but when you're testing library versions side-by-side you can easily get confused whether you remembered to run `install` between the switches.
Specifically, bundler allows side-by-side version installs and the program simply loads the version specified in the bundle.lock thus making the lock file the source of truth where as npm, pip, even poetry install whatever version exists at the path. This pushes the source of truth from the .lock to that path.
It's not the end of the world, but when you're testing library versions side-by-side you can easily get confused whether you remembered to run `install` between the switches.