My plan is to release a blog post about all VISUALIZE current features next week, explicitly mentioning Posit's alpha GGPLOT.
/edit: clarifications
I can only imagine the load you might end up in if you have to keep feature parity with ggsql along with all the other features you have
About the name: yours is the official Posit one, and you were there first, so I'll rename my branding; there should be one ggsql, and it's yours. Mine only exposes VISUALIZE as the keyword anyway.
The actual name of the extension is the-stats-duck, which runs inside duckdb-wasm (it powers an in-browser data tool) and emits a Vega-Lite spec inline for the host to render. Your implementation (which I think is Rust based and an in-process HTTP server that opens a browser), is a native pattern, but correct me if I'm wrong! mine is deliberately thin and wasm-safe, not a whole engine.
About the parity, you're right, and I'm not chasing it; for real grammar-of-graphics, ggsql should be the tool! but, if that's ok with you, I'd love to keep the syntax aligned!
And you are correct about how our extension is implemented and it isn’t currently wasm ready