> ## Documentation Index
> Fetch the complete documentation index at: https://hyprcode.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Zig Core & Viewport

> High-performance TUI rendering with native terminal canvas mapping

Hypr uses **OpenTUI** which replaces traditional layout cycles with a native Zig engine rendering core.

### Alternate Screen Switching

By targeting `alternate-screen` screenMode, OpenTUI shifts rendering streams from standard output to the console's secondary buffer matrix. When exiting or aborting, it cleanly restores the main TUI console buffer, preventing cursor stack traces.