Depending on what you’re comfortable with (and whether you want to integrate it with something else), maybe take a look at Altair? Especially nice is the declarative syntax of Vega-Altair.

I’m quite a fan of voyager (née wefwef), but out of curiosity, I tend to install all lemmy apps and give them a whirl.

I have to say, there is quite a lot to like about your app. I’m very curious to see where it goes next.