For static builds, if you're willing to run a slightly older version of sbcl daewok's work on building and linking sbcl in a musl environment might be solution you're looking for. I've tried to port his patches to more recent versions but there are segfaults due to changes in upstream.

https://www.timmons.dev/posts/static-executables-with-sbcl.h... https://www.timmons.dev/posts/static-executables-with-sbcl-v...