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Gosub-engine is an HTML5 browser engine and web rendering pipeline that parses HTML5 and CSS3 to compute layout and render web content to pixels. It functions as a JavaScript runtime environment with a virtual machine and event loop for handling dynamic logic and asynchronous tasks. The system also includes a web storage manager for persisting cookies, local storage, and session storage. The project features a headless browser renderer capable of generating page images or extracting plain text without a visible window. It supports cross-platform graphics rendering through pluggable CPU and GP

React Menu is a library for building accessible, keyboard-navigable dropdown and context menus within web applications. It provides a set of tools for creating complex, hierarchical navigation structures that support unlimited submenu nesting and standard accessibility patterns for screen reader compatibility. The library distinguishes itself through a focus on dynamic layout and positioning, utilizing real-time collision detection to adjust menu placement relative to anchor elements and viewport boundaries. It employs a portal-based rendering strategy to prevent clipping and z-index conflict

Fixed-nav is a client-side JavaScript library for building responsive, touch-friendly navigation menus on single-page websites. It pins navigation bars to the screen viewport so control interfaces remain persistently accessible as users scroll through long content. The library automatically monitors scroll positions against document boundaries to highlight active section indicators in real time. When navigation links are selected, it animates viewport transitions to target sections using hardware-accelerated timing functions instead of abrupt jumps. Additional capabilities include dimming ba