Hi,
I observed there’s a lot of requests on Ansible Forum about how to create/manage/use custom Execution Environment for AWX ?
To answer that, I wrote a basic How-to and step-by-step on my GitHub right there :
GitHub - motorbass0/awx-build-custom-ee: Short project to know how to create a custom AWX EE image for your custom Ansible projects.
Hope it will help you and give you a nice base to your custom EE journey 