Clearly fake: LLM don’t mind citing their sources 😂

VSCode + Foam + gitea (+ hexcalidraw if you want to draw)

FWIW I use foam. It is a visual code extension so you piggyback on all Visual code features and extensions (e.g. git, md lint, etc). And I sync with my self hosted gitea. It doesn’t have a mobile app but I use obsidian with the obsidian git plugin