I’m currently using restic to backup my laptop every day on my NAS.
If my NAS is running out of space no snapshot will be created even if 80% of the modified files have been transferred.
Why this decision? and is there any way to create “incomplete snapshot” so they can get access if my laptop dies and I didn’t notice the NAS was full?
To make a snapshot accessible restic would have to upload additional data, which cannot work if the storage is full (at least not reliably).
You could try whether recover is able to reconstruct a new snapshot based on the parts that have been uploaded so far, but to do that it needs a bit of additional space. It’s probably also a good idea to run rebuild-index before to allow recover to check for data in the packs that were uploaded just before running out of space.