There are two ways you can get started using OpenACH: the OpenACH Docker Image, or downloading the source distribution.
This is by far the easiest way to get started using OpenACH, as it is packaged in a way that can be used in both development and production. Our GitHub Docker Repository contains Dockerfile of OpenACH for Docker's automated build published to the public Docker Hub Registry.
If you want to explore the source code or install OpenACH on an existing web application server, you can download and install from our GitHub Source Repository. Set up is a bit more involved than when using Docker, but for situations where you will be making changes to the source code, this is the way to go.