That sometimes it's just not necessary ? The main advantage IMO seems to be security (i.e., you can verify that a given build environment produced exactly the

That sometimes it's just not necessary ? The main advantage IMO seems to be security (i.e., you can verify that a given build environment produced exactly the same binary that you downloaded, so the NSA or FSB probably hasn't embedded a Trojan in it). If you need this, then you obviously need reproducible builds. The other advantages and why you may not need them : - build acceleration : There are ways to do this without caching binaries. Incredibuild, for example does an excellent job (at least on Windows. Haven't used their Linux version). It costs money, so you have to figure out your priorities there. In my experience their support is excellent and it usually works very well. - Storage savings : The premise here is that if a binary hasn't changed, there is no need to store it again with a new build. Maybe I'm getting rid of my old builds every 30 days (or whatever) so I don't really care about this either. Absolutism is silly. You should analyze the advantages and costs of doing something instead of doing it because Google (or insert SV darling here) does it.