Lightburn support Open Path Format fonts?

I have searched the forum with several variations of the search. I found only one place it specifically mentions OPF, it didn’t help.

Can they be used?
If so, what is the proper place to put these fonts? Thanks.

No, we do not support the OPF format currently. I’d recommend clicking the Feature Suggestions link at the top of the page and submitting a request. That helps us prioritize adding new features.
No promises - I can’t even find details on the format or how it’s encoded currently. Which we would need to either acquire or reverse engineer.