Thanks! The text is not stored in a database, rather I just render the markdown files you have on the canvas. Technically, it is also possible to put your whole Obsidian vault into LimanDoc's vault, and all the files from Obsidian will appear in the canvas :)
Ah I see now, I will check it out! In near future I will also add a support to render whole web-pages instead, e.g. adding youtube video, blog post, etc. Perhaps adding an excalidraw link there and drawing right within LimanDoc would work... Will keep an eye!