Is there a limit to how many Attributes solutions I can add to one page?

You can have as many Attributes solutions on the page as you need, all scripts are loaded asynchronously using defer or async tags, and they never block the main thread. Each solution is self-contained and can run independently as soon as it’s loaded without causing waterfalls.

They all are inter-compatible and couple together once they run. Each script is strongly cached on a CDN and the user’s browser.