The download URL supplied for this website points to the KeyCastr GitHub main branch as a ZIP archive. That is useful for source review, development and manual building, but it is important not to describe it as a normal macOS installer. The distinction prevents users from downloading a project folder when they expected KeyCastr.app.
What the GitHub source ZIP contains
Project code and assets
The archive includes Objective-C source files, Xcode project data, interface resources, images, documentation and the BSD 3-Clause license.
A snapshot of the main branch
The package reflects the current main development branch when downloaded. It is not necessarily identical to a tagged release package.
What it does not guarantee
No ready-to-run app bundle
A source archive is not a signed or packaged KeyCastr.app release. Double-clicking the ZIP does not install the application.
No release stability promise
Main-branch code can include changes made after the latest tagged release. Developers should review the project history and build requirements.
Who should use the source download
Developers and reviewers
Use it to inspect event handling, study visualizers, evaluate the license or prepare a contribution.
Advanced users building locally
A local build requires a compatible macOS development environment, Xcode configuration and any project dependencies.
How regular users should install KeyCastr
Use a trusted app release
A normal user generally needs a packaged KeyCastr.app from an official release channel.
Use Homebrew
The documented Homebrew command is brew install --cask keycastr. After installation, Input Monitoring still has to be enabled.
Verify the package before use
Check the URL and archive structure
The supplied source URL is under the official keycastr/keycastr repository path. After extraction, expect project files rather than an installer wizard.
Keep permissions tied to the app
Input Monitoring applies to the built or installed application, not to the source ZIP itself.