Vulpis

Appearance

Vulpis 𓃦High-Performance UI Engine

Build native desktop apps with C++ speed and Lua simplicity.

Get Started
View on GitHub

Native Performance

Built with modern C++20 and OpenGL. Minimal footprint, maximum framerates, and direct hardware acceleration.

Declarative Lua

Write UI logic in Lua using a React-inspired syntax. Compose components with HBox, VBox, and flexible styling.

Flexbox Layout

Powered by the Yoga layout engine. Use standard CSS-like properties (justify, align, gap) to build complex responsive UIs.

Developer Tooling

Comes with `vulcli`, a powerful command-line tool to handle building, dependency management, and running your project.

The Vulpis Way ​

Define your UI in pure Lua and let the C++ engine handle the rest.

lua
function Window()
	return { title = "Vulpis Typography One-Screen", width = 800, height = 600, resizable = true }
end

function App()
	return {
		type = "vbox",
		style = {
			BGColor = "#000000",
			alignItems = "center",
			justifyContent = "center",
		},
		children = {
			{
				type = "text",
				text = "Hello Vulpis",
				style = {
					color = "#ff7b00",
					fontSize = 60,
				},
			},
		},
	}
end