Requirements

To run#

• macOS 15.6 or later

If the app will not open on a supported version, the cause is almost always Gatekeeper rather than compatibility; see First Launch.

To build#

• macOS 15.6 or later
• Xcode 16 or later, with Swift 5 and the macOS SDK
• The Vendor/libghostty-spm git submodule

Full steps are in Build from Source.

Price#

Free, MIT licensed. Source at github.com/0x96f/justty.