Even "vanilla" tldraw is super cool as a clean, functional, open-source html5 whiteboard, and the team have absolutely been killing it in their comms and use of LLMs. I honestly think they might be some of the most innovative people around when it comes to really novel UI for LLMs. Also, Todepond is just very cool.
does the cloud product’s “new project” button still trash your saved documents with one click behind a docstring something like “make sure you have saved your stuff before making a new project” where what they meant is “our cloud product does not save your projects to the cloud, it is in local storage actually and you can only have one project at a time so the new project button actually overwrites your old one, so when we say ‘save’ we actually mean export your stuff to a json file and save to local disk!! so you can re-import it back into the product later from local disk and overwrite it back!!!!” I did my VC seed pitch deck in tldraw along with a bunch of product mocks, ask me how i know this
File > New Shared Project -- and your problem is solved. Remember to bookmark your work, since there is no login/account/automatic storage.