Guix, Knot DNS >=2.5 uses a new, LMDB-based (DNSSEC) key database format. It ships a new ‘pykeymgr’ script to manually migrate keys from the older JSON format. These patches update Knot to 2.5.1, add the required python-lmdb bindings, and throw in a real LMDB description for good measure. I use Knot 2.5.1 & DNSSEC but haven't any 2.4-format key databases to import. If you do, your feedback would be very welcome. Kind regards, T G-R