I am not comfortable taking “random VM’s” from others and would greatly prefer complete knowledge of how to build the host instead of “just an image to use”.
Is there a recipe to build the VM?
If not then I would like to propose that you consider creating a Vagrant file ( ref: https://www.vagrantup.com/ ) so that a truly security minded (AKA: “paranoid”) person could review (understand/edit/alter) the build process and know everything about the VM they are hosting.
While I think the Vagrant file would be a better tool set for a user to start from, at least publishing some docs that describe the OS and tools that are in the image would be useful too.