Trilium Notes

Trilium Notes is a hierarchical [[note taking] application with focus on building large personal knowledge bases https://github.com/zadam/trilium

Notes can be arranged into arbitrarily deep tree. Single note can be placed into multiple places in the tree (see cloning)

Sharing (publishing) notes to public internet

Sketching diagrams with built-in Excalidraw (note type "canvas")

Trilium is provided as either desktop application (Linux and Windows) or web application hosted on your server (Linux). Mac OS desktop build is available, but it is unsupported.