=> Bootstrap dependency digest>=20211023: found digest-20220214
ERROR: This package is only available for these platforms: *-*-alpha *-*-hppa *-*-i386  *-*-mlrisc *-*-sparc *-*-powerpc Linux-*-x86_64 NetBSD-*-x86_64.
ERROR: This package has set PKG_SKIP_REASON:
ERROR: smlnj-110.99.3 is not available for NetBSD-10.0-aarch64eb
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/lang/smlnj