I think a lot of times it just sneaks in. For example, when one of my projects was in alpha state, I added the build timestamp to the `--version` output, so tha

I think a lot of times it just sneaks in. For example, when one of my projects was in alpha state, I added the build timestamp to the `--version` output, so that I could reserve version number changes for actual releases. At that point in time I never thought it would become a debian package, much less that reproducible builds would be a thing someday.