Yes, the way to test your own camera is to connect it to your computer and launch APStreamline. As the sibling comment suggested, feel free to add a GitHub issue if you want your camera to be supported. In case you want to DIY support for your camera, the steps here https://arnavdhamija.com/2020/10/29/apstreamline-v2/ have an outline of what to do.
Yeah wasn't sure if they had a process to it outside of pull requests. As in some other channel or method for hardware. But you're right, pull requests it is they said.