Hey, Streamlit co-founder here! (I'm otherwise not related to this article, btw. Just saw it on HN. Super cool!)

If I understand correctly you're trying to extend Streamlit in some way? If so, we have some features coming out in a few months you will probably like. More news on what exactly in a few weeks. Stay tuned :)

If you have any other questions, check out our forums at https://discuss.streamlit.io

Cheers