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Fluint — High-Performance Go TUI Engine

🇬🇧 English | 🇷🇺 Русский | 🇨🇳 中文

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An open-source Terminal User Interface (TUI) engine for Go built from scratch with an emphasis on smooth cell animations, advanced VFX (easing, sub-cell rendering, transitions), and an integrated UI kit.

Key Features

• Built from scratch: No dependencies on Bubble Tea, tcell, termbox, or lipgloss.
• Zero-Allocation Hot Path: Buffer diffing, state rendering, event dispatching, and animation ticks allocate 0 bytes per frame in steady state.
• Single Syscall Frame Render: Serialized ANSI diff stream sent in exactly one write(2) syscall per frame for tear-free rendering.
• Advanced VFX Capabilities: Native easing curves, sub-cell rendering (half-blocks, braille, density characters), and smooth transitions.
• Pure Dependency Model: Uses standard library and golang.org/x/sys for termios/ioctl operations.

Architecture & Documentation

• 🇬🇧 Architecture Overview
• 🇬🇧 Changelog
• 🇬🇧 Architecture Decision Records (ADR)