GiellaLT provides an infrastructure for rule-based language technology aimed at minority and indigenous languages, and streamlines building anything from keyboards to speech technology. Read more about Why. See also How to get started and our Privacy document.
NOTE! This info may be outdated.
The process of adding languages in LibreOffice is documented here:
-* LibreOffice Localization_Guide: How To Submit New Locale Data
Save the resulting xml file in the proof/spelling/hfst/locale/ folder (perhaps).
Thereafter, the new language must be added to LO. Register at bugs.freedesktop.org/, and file a bug saying the language is missing, with the xml file as an attachment.