What I've long been looking for is a sync service that handles syncing these directories of markdown, but then provides value added HTTP APIs on top of them. I

What I've long been looking for is a sync service that handles syncing these directories of markdown, but then provides value added HTTP APIs on top of them. I can sync my markdown files from place to place with ease, but what I really want is the ability to POST myserver.com/newpage and have it artificially inject a new Markdown file at the path I request. This could be system agnostic, Obsidian, Logseq, and tons of other local markdown knowledge bases could benefit from this.