The docker image is nothing more than “FROM scratch” and then copying in the statically linked binary. If there are 0 other dependencies, I think it would be equally easy to distribute the binary through GitHub releases. There is no need for brew.
If people want to run it isolated, the docker image is of course still a nice to have and docker hub is a convenient distribution mechanism. At the same time, an equivalent image can equally easily be created by the consumer.
Personally, due to trust, I would anyway still build it from source and run in a container, to be on the safe side.
I'll also create a docker image.
I just didn't expect this much popularity so the repo isn't 100% ready te be honest