I made a Tree-Sitter based parser for Emacs Org-Mode files (that's mostly complete, mostly): https://github.com/Idorobots/tree-sitter-org

On top of that, I made a Python parser that's meant to improve upon the awesome `orgparse`: https://github.com/Idorobots/org-parser

And now I'm building a CLI for Emacs Org-Mode, mostly focused on ad-hoc querying, agenda planning, etc: https://github.com/Idorobots/org-cli