Guides

Where to keep the things you’re told to keep safe: API keys, a project’s .env, backup codes and recovery keys. Each guide starts with the general answer, then shows how Slinky does it.

Where to keep API keys on a Mac

Out of notes, chats and project folders, and into one encrypted place.

Keep .env files out of git

Check .gitignore, share names not values, and stop a commit with a key in it.

Where to save two-factor backup codes

The codes a website tells you to keep somewhere safe, and how to find them later.

Let AI coding tools use your API keys without seeing them

Claude Code, Cursor and Codex can run your app without the keys entering the chat.

Keep your App Store Connect API key safe

The .p8 file, its Issuer ID, and a notarytool profile, out of your Downloads folder.

Give your secrets a home.

Free, about 6 MB, and nothing leaves your Mac.

Download for Macv2.0.0 · macOS 15 Sequoia · Apple silicon ·