CLI-first Markdown editor for Mac

Open Markdown from the terminal, native-fast, write and leave

Problem

Developers who live in the terminal need to edit a README or note, but Vim is fiddly and heavy editors break their flow. They want a Markdown editor that opens from a command with line jump and pipe support—existing tools either lack CLI access or start slowly.

Solution

A native macOS Markdown editor whose core is the CLI: `editor notes.md:42` jumps to a line, `cat notes.md | editor -` accepts piped input. Live rendering with one-key source toggle, native fast launch, optimized CJK mixed text, plus Vim mode and a folder sidebar.

Users

macOS developers, technical writers and indie hackers who work in the terminal

MVP

CLI open with line-number jump; piped input support; live Markdown render and source toggle; native fast startup; CJK mixed-text optimization and basic Vim mode

Revenue

One-time purchase (similar Mac tools price ¥30–80), or free basic version with paid unlock for Vim mode, focus mode, etc.

Why now

AI-generated code means developers write more Markdown than ever, and there is real grumbling about terminal-to-editor friction; a native Mac utility is cheap to build and an MVP is two weeks of work