In one company I worked we hosted our own repo for npm and mirrored all packages we used there. For our own stuff we stored all old versions in it too. The soft

In one company I worked we hosted our own repo for npm and mirrored all packages we used there. For our own stuff we stored all old versions in it too. The software itself always installed specific version rather than "latest" Another option is to store the whole docker images, granted this will not give you the ability to always rebuild it, but at least you have a "binary" you will be able to run later.