Cc-md – Zero-cost Obsidian sync across iPhone, Mac, and GitHub

Here's something I realized: the most AI-native knowledge base isn't a SaaS product with an API. It's a folder of markdown files on your disk.

Obsidian stores everything as plain .md files. That means Claude Code (or any AI tool) can grep, read, write, and traverse your entire knowledge base with zero setup. No API keys. No OAuth. No middleware. Just local file I/O.

The only missing piece was sync. I wanted my vault on iPhone (iCloud), on Mac (local), and on GitHub (backup + version history) — without paying $4/mo for Obsidian Sync.

cc-md is ~400 lines of bash. iCloud handles Apple device sync in seconds. A launchd job runs git add/commit/push every 5 minutes. That's it.

One command to install:

bash <(curl -sL https://raw.githubusercontent.com/yuukiLike/cc-md/main/insta...)

The installer auto-discovers your vault, inits git, creates a GitHub repo (if you have gh CLI), and starts syncing. Zero prompts in the best case.

I built this in a weekend, solo, with AI assistance from first line to last. A year ago I couldn't have shipped this. Now I can.

I feel genuinely lucky to be alive in the AI era. It's making childhood dreams come true — one project at a time.