Translators work in https://weblate.osgeo.org/projects/grass-gis/. Messages translated in Weblate then will be automatically submitted to the GRASS GIS source repo as pull requests.
If you have any difficulties please ask for help
on the GRASS development mailing list grass-dev lists.osgeo.org
(subscribe at https://lists.osgeo.org/mailman/listinfo/grass-dev). Your
willingness, time, and effort translating are valuable.
Note that GRASS must be configured with --with-nls and (re)compiled
to make use of the translated messages.
Please help us translate all the GRASS messages!!
GRASS GIS translation portal: https://weblate.osgeo.org/projects/grass-gis/
Updating the message catalogs currently only works on unix-like systems and requires "gettext".