Offhand, the biggest difference I'm aware of is the "--platform" argument to "finch run"; with colima (and presumably lima under it) one must specify that at vm creation time not per container

    $ ./_output/bin/finch run --platform amd64 --entrypoint=/usr/bin/env redis:7-alpine uname -m
    x86_64
    $ ./_output/bin/finch run --platform arm64 --entrypoint=/usr/bin/env redis:7-alpine uname -m
    aarch64
    $ uname -m
    x86_64
    $ ./_output/bin/finch images
    REPOSITORY            TAG         IMAGE ID        CREATED           PLATFORM          SIZE        BLOB SIZE
    redis                 7-alpine    2700d5097763    31 seconds ago    linux/amd64       30.8 MiB    11.3 MiB
    redis                 7-alpine    2700d5097763    31 seconds ago    linux/arm64/v8    30.5 MiB    11.3 MiB