Developer proposes tool to auto-publish Markdown repos across blogging platforms

A developer has outlined a common pain point in content publishing: maintaining a single Git repository as the authoritative source for written content, rather than relying on third-party platforms like Ghost, Beehiiv, or Dev.to. The core frustration is the manual reformatting required when publishing the same Markdown post across multiple channels, since each platform handles headings, code blocks, and images differently. To address this, the developer is building a tool called Fmttr, which would automate the transformation and publishing of posts to mapped platforms on a simple git push. The project is currently in an idea-validation stage, with the developer seeking feedback from writers who already use a repo-based workflow. Fmttr is being built in public, with updates shared on X and a landing page live at fmttr.dev.