Hi HN, I soft launched Musel Cloud, a collaborative whiteboard where you can drag and drop files (docx, xlsx, pdf) on the board and edit them in-place. These are all natively rendered on the canvas so they blend in seamlessly with other items. It has a built-in file explorer that syncs with your devices. Is it a whiteboard with a Drive or a Drive with a whiteboard? I'm not sure, but it greatly reduces context switching.

Speaking of context, I made an interesting discovery while working on Musel Cloud. Those who work with Claude Code, Codex, etc... will quickly realize that you'll spend the majority of the time wrestling with context management. With proper context, the LLM can be consistently reliable whereas prompting alone can be hit-or-miss. It turns out whiteboards are really good at managing context and interfacing with LLMs.

Whiteboards are a really crowded category; I didn't even intentionally set out to develop one. I was building a RAG app and needed a way to gather and lay out documents. To my surprise, there weren't any existing product where I can drag and drop forms, documents, contracts, books, etc.. onto a board and then edit them.