Just for clarification, So you can't really host this without open-sourcing my product (since your server is AGPL). Isn't it a stretch to call this really open-source? I compare this to something like a temporal which I can self-host without worrying (and which I believe is MIT license [https://github.com/temporalio/temporal/blob/main/LICENSE])
AGPL is fully open source, and definitely allows you to host it without open sourcing anything of your code. That's one of the very freedoms that the open source definition contains.