Nginx PageSpeed How do I compress attachments?

This forum compresses attachments into webp, I want to do that as well (I use xenforo).

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Though my problem is that an attachment image link is for example "-jpg.123", "-png.123" and not ".jpg" or ".png".

I am using LoadFromFileRuleMatch and I've tried different entries but didn't work for me.
Anyone that knows how to do it?

 

Any idea how to use that addon for this purpose?
I already own it, used to use amazon s3.

 

Nevermind, figured it out.
Thanks

 

Have to thank you a lot for centminmod, makes life easier