How to find, compile, or build ARM64/aarch64 versions of the PSOL libraries for pagespeed compilation on a Raspberry Pi?

[Danrancan]

I'm trying to compile pagespeed module on my raspberry pi 4 running Ubuntu Server 20.04. The main issue I have found with this is there are no ARM versions of the PSOL libraries except for this one, which is an outdated PSOL and originally built for nginx 1.18.0. I am wondering what the repercussions of using these libraries are (because I did compile with these libraries), and if there is some way to compile the psol libraries myself for a raspberry pi ARM processor. I can't find the link now, but someone made a comment about another issue and suggested building PSOL yourself for ARM. Is this possible and how easy is it to do? Any instructions would be more than welcome. Thanks.