Luca UI 1.0 Beta

What is Luca UI?

One declarative layer, one logic seam, one implemented backend.

Declarative · .lucu

UI output derives from application state and declared properties. No component references, no show(), hide(), or setter calls.

Paired logic · .lucc

Luca Code owns general-purpose logic; results re-enter UI state only via set/flush. Luca Code never depends on Luca UI.

Rendering · text now

The headless text backend is implemented and verifies every example. Native, custom-GPU, and web remain architectural options only.

Tooling · honest errors

Every failure is a source-located Error at line:column: message — plus a .lucu VS Code extension in-repo and on the release.

VS Code extension is available for installation.

Locked rules, the Beta core, and the explicitly open areas.