Show HN: Infat – Declaritive application assocation manager for macOS
Published on: 2025-04-29 07:37:52
Welcome to Infat
Infat is an ultra-powerful, macOS-native CLI tool for declaritively managing both file-type and URL-scheme associations. Avoid the hassle of navigating sub-menus to setup your default browser or image viewer, and the pain of doing that every time you get a new machine. Setup the rules once, and bask in your own ingenuity forevermore. Take back control, and bind your openers to whatever. You. Want. Override everything! Who's going to stop you?
Summary
List which apps open a given file extension or URL scheme
Set a default application for a file extension or URL scheme
Load associations from a TOML config ( [files] and [schemes] tables)
and tables) Verbose, scriptable, and ideal for power users and admins
Get Started
Get started by installing Infat — jump to the Install section below.
Tutorial
1. Listing Associations
# Show the default app for .txt files infat list txt # Show all registered apps for .txt files infat list --assigned txt
2. Setting a Default Ap
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