How to translate NetBSD

I asked about the following and was told to ask on this mailing list.

 > Hi scootergrisen,
 >
 > scootergrisen writes:
 >> Should there not be information about how to translate NetBSD?
 >>
 >> On https://www.netbsd.org/docs/guide/en/chap-exinst.html#exinst-starting
 >> i see "Figure 3.1. Selecting the language" to select language.
 >>
 >> But http://www.netbsd.org/contrib/ does not mention how to translate
 >> NetBSD as far as i can see.
 >
 > I think that all the meat is in sysinst(8) src/usr.sbin/sysinst/msg.*
 > files.
 >
 > For more information it is probably better to get in touch with
 > tech-install@ mailing list.
 >
 >
 > Thank you!
 >