You can get Wren:IDM application in a few ways.
Download binary release
The easiest way to get the Wren:IDM is to download the latest binary release.
You can also run Wren:IDM in a Docker container. Official Wren:IDM Docker images can be found on Docker Hub.
Build the source code
The last but not least you can create your own build from the source code. Manual how to build the source code can be found here.