Now that I use Home Assistant, I want all my data sources to plug into there. It can handle the rendering for me as I see fit, and it's where data comes to integrate.

It's one of those things which I wish existed, but I can't imagine anyone would have written. Until I do a web search.

https://github.com/koriwi/sensors2mqtt/tree/main

I have not used it yet, but that seems like how I'd want to do it.