Read /usr/share/hunspell dictionaries

How can this snap config for the spelling checker Nuspell read the dictionaries from /usr/share/hunspell of the host system?

Already, the snap has a default en_US dictionary and the ability to use the Hunspell dictionaries snap via sudo snap connect nuspell:hunspell-dictionaries hunspell-dictionaries-1-6-1804:hunspell-dictionaries

See alo https://github.com/nuspell/misc-nuspell/issues/5