@chriswmackey is the better person to answer this question with several links but I try my best for now.
For the Ladybug Tools libraries, you can start from here. It lists all the libraries with a link to their documentation:
For Pollination, the only library that you need to work with inside the apps is pollination-streamlit.
We don’t have proper docs for the library yet but the sample apps should be a good place to see how they should be used.
I think the easiest and most practical way to get you started with the SDKs is to help you with some sample code for specific apps. If you can write a topic on Discourse and explain what you have in mind for an app and which parts are not clear, we can start helping you with providing some sample code.