Build instructions -- where is the executable

[marcpawl]

Tried to use docker to build

FROM ubuntu:latest as js2e
RUN apt-get update 
RUN apt-get upgrade -y
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y \
  git \
  software-properties-common
RUN add-apt-repository ppa:rabbitmq/rabbitmq-erlang
RUN apt update
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y \
  elixir
RUN git clone -b v2.9.1 https://github.com/dragonwasrobot/json-schema-to-elm.git /json-schema-to-elm
ENV MIX_ENV=prod
RUN cd /json-schema-to-elm && mix local.hex --force
RUN cd /json-schema-to-elm && mix deps.get
RUN cd /json-schema-to-elm && mix

But I cannot find the executable.

Where is the js2e?