As of today
the software component used by
can export eeschema symbols (.lib) as well.
See also Importing gEDA "*.sym" and/or "*.bxl"
KiCad’s pcbnew supports the gEDA PCB footprint format, so pcbnew s-expression or legacy .mod export has not been implemented.
Direct any complaints/issues to the issues section of the BXL2text github repo.
translate2geda is yet to have these changes incorporated.
https://github.com/erichVK5/BXL2text now makes the use of “ultralibrarian” or intermediate Eagle formats unnecessary.
Regards,
Erich.