FreeBSD/powerpc64 is undergoing rapid development on the newest processor families (POWER8/POWER9). Here are some hints to get you started.

• FreeBSD 12 or above is required; FreeBSD 12-STABLE is recommended but 12.1R should work as well.
• Packages are built for the following OS versions:
  • For FreeBSD 12-STABLE, from the ports -quarterly branch, using the 12.1R release which still uses GCC from base.
  • For FreeBSD-CURRENT, from ports-head, using llvm10 and elfv2 from base.

Note that desktop support is not well-tested. In particular, kde is known not to completely build.

FREEBSD-CURRENT/powerpc64 was moved to clang and elfv2 as of r356111 20191226.

Also see ports.