we needed the ARM image of the Docker image `vimagick/json-server` https://hub.docker.com/r/vimagick/json-server as in https://github.com/vimagick/dockerfiles/issues/211#issuecomment-2440577248 In the meanwhile we've forked it in https://gitlab.com/opencity-labs/vimagick-dockerfiles-json-server where ARM version is available at https://gitlab.com/opencity-labs/vimagick-dockerfiles-json-server/container_registry/8084209 btw: this image `registry.gitlab.com/opencity-labs/vimagick-dockerfiles-json-server:json-server-0.17.4-arm` has been build with the latest v.0.* of the json-server, which is the latest that support `--middleware`