Lona/Lona

Lona is a cross-platform UI compiler and design tool that transforms JSON-based component definitions into native code for iOS, macOS, React, and Android. The system provides a desktop IDE for editing components, logic, and styles, alongside a CLI and Webpack loader for automated code generation. It also includes a plugin architecture for exporting to Sketch and GitHub integration for version control.

This period focused on the creation of the Lona Compiler and the Lona Studio application, replacing the legacy ComponentStudio. The compiler was expanded to generate code for Swift, JavaScript (React, React Native), and Android XML, while the studio introduced a plugin system, logic editing, and comprehensive UI controls. Extensive test coverage was added for all generated platforms to ensure correctness.

71 changes

This period focused on introducing a new Logic language compiler with full type inference and code generation for JavaScript, Swift, and Reason.js. The Lona Studio was significantly enhanced with a comprehensive Logic editor featuring autocompletion, parameter editing, and device presets. Additionally, the project expanded its tooling with a Webpack loader, a React Native to Lona converter, and a Sketch plugin, while establishing robust version control and GraphQL integration.

32 changes

Lona/Lona was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.