Well, there was a 1.15.6 version of Go for linux ARM64 so i installed it and could compile FrankyGo and Zurichess
I also tested Archimedes 3 static builds of Belofte, Gunborg and Olithink and they are working well. Arena detects Belofte as a WB-2 while it's UCi engine so better put the option manually to get it work.
made a tar.gz of these 5 new compiled engines :
-Belofte 2.0.82 (Static-Android)
-Gunborg 1.65 (Static-Android)
-Olithink 5.9.2 (Static-Android)
30 days download link : https://pixeldrain.com/u/CMFTAj1N
These engines will be added to the collection later.
@jshriver ; where is your running Rpi4 ?
Merry Christmas days to all.