sya-ri/strata

Declarative Minecraft UI with reusable components, caller-owned state, and headless rendering.

Create custom screens and HUDs from Fabric Mods or Paper, Folia, and Velocity plugins. For server-driven UIs, the server or proxy owns the definitions, state, and event handlers, while the required Strata Fabric client Mod renders the interface and delivers player input. Vanilla clients cannot display these UIs.

Modrinth · Hangar · CurseForge

This page documents the development sources; for an installed version, use the documentation at its matching release tag.

Example · Still frames

Minecraft screens often mix layout, input, state, resources, and version-specific calls in one class. Strata separates those responsibilities so an interface can be composed, reused, and tested through a common API.

What you can build

• Keep one interface as a screen or HUD, switch its presentation, and control game input through its session.
• Arrange interfaces with rows, columns, wrapping groups, grids, and overlays.
• Compose controls, text editors, scrolling views, images, and Minecraft resource-backed content.
• Add sizing, backgrounds, pointer and keyboard actions, focus, and layout parent data through modifiers.
• Reuse application components or implement custom primitives through the public Element and Node SPI.
• Render portable drawing and semantics in JVM tests, with separate loaded-client verification for native behavior.

The component overview shows the available components with images and compiled examples. Complete screens demonstrate how they fit together. Try the interactive web demos for a counter, progress controls, and a keyed list running in your browser.

A screen built from components

A confirmation screen combines text, buttons, and layout components into a reusable UI definition.

Compare components and browse their examples.

Installation

Fabric client and server

Players need the Strata Fabric runtime, Fabric API, and Fabric Language Kotlin for both client-defined and server-driven UIs.