Treesitter based "tagbar like" plugin

What? I would love to see a treesitter based tagbar like plugin. I think treesitter is perfect for this!

Why? I love tagbar but it requires a third party binary (ctags, universal-tags, etc.) to work.

Potential existing implementations:

• Tagbar
• symbols-outline.nvim (uses LSP instead of TS)

Potential pitfalls:

Different languages may require different kinds of queries (I don't know enough about treesitter to know if this will be an issue).

edit: Added another potential implementation