Luca UI

A UI + logic pair

Teaser only — the component inventory and syntax guides live on the future UI site.

App :
  id = "root"
  Text :
    id = "hello"
    text = greeting

def var greeting (str) = "Hello, Luca"
print(greeting)

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One-way dep: UI → Code

The rules Luca UI will not break.

State-driven

Components change through state and events — never through refs or setter calls. visible and disabled are ordinary properties.

Accessible core

Explicit labels take precedence, text infers where sensible, and every component carries an id fit for testing and inspection.

Cross-platform

The vocabulary stays platform-free; targets adapt rendering. Text backend today, native and web as future options.

Honest errors

Bad properties and arguments fail with source-located Error at line:column — frozen wording, never silent.

Where Luca UI renders today — and what stays explicitly future.

Backend matrix for the 1.0 Beta generation.
Target	Status
Headless text backend	Implemented — all examples verified
Native	Architectural option — not implemented
Custom GPU / Web	Architectural option — not implemented