Are reproducible builds in any way integral part of snappy, flatpak or guix? Looks like that might be a basic requirement in the long run of maintaining your software.
It appears to be an important consideration for guix: https://savannah.gnu.org/forum/forum.php?forum_id=8407
@mray Reproducible builds are huge in Guix. One nice feature of Guix is that you can keep reproducing building something that was built even a period of time ago, as things were at that time.