bashbrew-arch   variants
amd64    stretch,stretch-slim,buster,buster-slim,alpine3.9,alpine3.10,alpine3.11
arm32v6  alpine3.9,alpine3.10,alpine3.11
arm32v7  stretch,stretch-slim,buster,buster-slim,alpine3.9,alpine3.10,alpine3.11
arm64v8  stretch,stretch-slim,buster,buster-slim,alpine3.9,alpine3.10,alpine3.11
i386     alpine3.9,alpine3.10,alpine3.11
ppc64le  stretch,stretch-slim,buster,buster-slim,alpine3.9,alpine3.10,alpine3.11
s390x    stretch,stretch-slim,buster,buster-slim,alpine3.9,alpine3.10,alpine3.11
