Dreamfactory docker-compose build fails on arm64

[MartinHannah]

I am following the instructions from Docker hub but build fails in Ubuntu 22 installed on Rasp Pi or Orange Pi with the messages as follows;
mysql uses an image, skipping
example_data uses an image, skipping
redis uses an image, skipping
Building web
[+] Building 1.0s (7/12)
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 1.29kB 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for docker.io/dreamfactorysoftware/df-base-img:ubuntu-22 0.8s
=> [1/8] FROM docker.io/dreamfactorysoftware/df-base-img:ubuntu-22@sha256:47e8c4fc5bc9fb6a6855702a04ffad53bca75d0c0aa958104ca7b9839486a7aa 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 79B 0.0s
=> CACHED [2/8] COPY dreamfactory.conf /etc/nginx/sites-available/dreamfactory.conf 0.0s
=> ERROR [3/8] RUN git clone --branch master https://github.com/dreamfactorysoftware/dreamfactory.git /opt/dreamfactory 0.2s

[3/8] RUN git clone --branch master https://github.com/dreamfactorysoftware/dreamfactory.git /opt/dreamfactory:
#0 0.212 exec /bin/sh: exec format error

---

Dockerfile:9

7 | # Get DreamFactory
8 | ARG BRANCH=master
9 | >>> RUN git clone --branch $BRANCH https://github.com/dreamfactorysoftware/dreamfactory.git /opt/dreamfactory
10 |
11 | WORKDIR /opt/dreamfactory

ERROR: failed to solve: process "/bin/sh -c git clone --branch $BRANCH https://github.com/dreamfactorysoftware/dreamfactory.git /opt/dreamfactory" did not complete successfully: exit code: 1
ERROR: Service 'web' failed to build : Build failed

Any suggestions?