I found out about Lisp for the Iphone recently and wanted to find some code examples.
https://github.com/TerjeNorderhaug/ecl-iphone-builder/#readme
I have been following this thread and recently there was a new branch in ECL repo here https://gitlab.com/embeddable-common-lisp/ecl/tree/arm64-port that builds ECL for arm64 architectures.