EditMD is a small native macOS editor for markdown files that lets you edit the rendered document in place and saves plain markdown back. It uses Y.js to merge edits made by coding agents in real time, so you can keep writing while an agent changes the same file instead of one side clobbering the other or hitting a file-changed-on-disk dialog.
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Y.js merges your edits and the agent edits in real time, like a shared document.
Work on the rendered document and still get plain markdown on disk.
Have an agent add links or fill in quotes while you keep writing in the same file.
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