You don't want every time you reinstall your application to get the latest dependencies because a new version of jengo comes out. You need both in the short te to make sure your builds are identical, reproducible and he long or mostly identical. In the long term, you need the process to continuously up date, so that up grades are not this terrifying thing, they're just a standard part of your development process. Kem says, file beat, log stash, prometheus and protaner can all help logs from doctor in various ways.