Hi All,
I'm running Synchronet on macOS Sequoia 15.6.1 using it compiled from sources. Seems to work great! If anyone wants to test you are welcome on 
telnet://bbs.digitalasylum.com.ar:2323
Thanks Rob for the great work!
I posted an issue with an illegal instruction on Gitlab.
Regards,
Damian a.k.a Orphan
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 þ Synchronet þ Digital Asylum BBS - 
telnet://bbs.digitalasylum.com.ar:2323