Trying to decide on whether to go with Kopia, Duplicati, or restic. Feature-wise, Kopia seems to best the others. However, I really like that restic binaries are reproducible:
The binaries released with each restic version starting at 0.6.1 are reproducible, which means that you can reproduce a byte identical version from the source code for that release. Instructions on how to do that are contained in the builder repository.