For releasing it somewhere where people can use it with or without the emulator:
Make a GitHub release, mark it as an alpha version (i.e. tag it as less than v1.0.0, e.g. v0.1.0) and then you have the option to upload additional files and you can upload the
.bin as an aditional file (and don’t forget to mark the release as a prerelease).
Like I did in Physix:
Sorry if you already knew that, I find that knowledge about GitHub varies drastically even with experienced programmers.