Nothing to do yet, but would start from translating grub.cfg into various languages.
Add comment with what languages you could contribute/maintain easily/natively. You can mention what other languages you know but please keep separate it from ones you are (close to) native. Pay attention that context of translations is technical/computers as well - Telling story of your life doesn't translate well into IT terminology knowledge :)
Native Russian speaker. Fluent in English.
Native German speaker. I'd be glad to contribute.
@arkadiy, @k3yt, I'm looking into how translation is done with grub and gettext right now. There aren't really any guides out there which focus on grub so I'll have to piece together info from the gettext manual (which I assume grub gettext is only a subset of) along with some testing.
All I know at the moment is that we'll need to compile the .mo files in the build system from the plaintext translations (.po files) and store these in CBFS at (cbfsdisk)/locale.
Swapping language should only require setting the lang variable in grubenv once edits are made to grub.cfg to use gettext.
Once I figure out how it works, I'll let you know what needs translating and how to do it.
I'm a bilingual Spanish and English Speaker. I currently use libreboot and have flashed it onto various machines (T400, R400, X60, X200 tablet, T60, and X200). I am very interested in helping out.