birlumbus.github.io: A Framework-Free, AI-Free Handwritten Responsive Interface Experiment

birlumbus.github.io is an experimental project exploring a return to the essence of web development. It challenges two major trends in modern front-end development: no use of any front-end frameworks, nor any generative AI tools. Instead, it uses only native HTML, CSS, and JavaScript to build a fully responsive user interface, proving that basic technologies combined with developers' manual coding and understanding of web standards can achieve a fully functional, visually appealing interface that adapts to multiple devices.

The modern front-end development tech stack is becoming increasingly heavy: frameworks like React and Vue are emerging one after another, build tools like Webpack are complex, and npm dependencies are numerous; at the same time, generative AI tools like GitHub Copilot are starting to assist coding. Against this background, the project asks: Can we return to the essence of the web—HTML for marking up content, CSS for controlling styles, and JS for adding interactions? These basic technologies are simple and standard, require no build steps or dependency management, and can be directly parsed by any modern browser.

This project is hosted on GitHub Pages, with its core feature being the restraint in technology selection: only native HTML, CSS, JS are used, no third-party frameworks or libraries. This choice is not conservative but a deliberate practice—while frameworks solve problems like componentization, they come with costs such as learning curves and build complexity; not using AI is to maintain full control over the code, avoid redundancy and consistency issues in AI-generated code, and deeply understand each technical decision.

The project is implemented based on web standard tech stack:

• HTML5: Uses semantic tags like header and nav to enhance document structure and accessibility, leverages features such as forms, multimedia, and local storage;
• CSS3: Uses Flexbox/Grid layouts and media queries to achieve responsiveness, manages design tokens with CSS variables, and implements animations with transitions/animations;
• Native JS: Uses fetch API and async/await to handle network and asynchronous operations, uses querySelector/addEventListener to manipulate the DOM, and organizes code with class syntax to meet interaction needs.

The project manually implements responsive design:

• Adopts a mobile-first strategy, adapting to small screens first then enhancing the experience for large screens;
• Uses relative units like rem/em/%/vw to achieve flexible layouts, relying on the adaptive features of Flexbox/Grid;
• Handles responsive images via picture/srcset and controls display with object-fit;
• Selects key breakpoints (mobile, tablet, desktop) to balance maintenance costs and adaptation effects.

Framework-free development brings significant performance advantages:

• Zero dependencies: No extra JS packages, size controlled within tens of KB;
• No build steps: Runs directly, provides instant development feedback, and deployment only requires uploading files;
• Cache-friendly: Static files are easily cached by browsers/CDNs;
• Excellent Core Web Vitals performance: Reduces framework initialization and rendering overhead, optimizing metrics like FCP, LCP, and CLS.

Native development is suitable for the following scenarios:

• Static websites/personal blogs: Content-focused, simple interactions, suitable for hosting services like GitHub Pages;
• Learning web basics: Beginners start with native technologies, making it more efficient to learn frameworks after understanding the essence;
• Performance-sensitive scenarios: Embedded web views, low-bandwidth environments, support for older devices;
• Simple projects requiring long-term maintenance: Avoids the burden of framework upgrades and dependency updates;
• Creative experiments/prototype verification: Quick setup without build configuration. Technology selection should be based on project needs, not blind pursuit of trends.

birlumbus.github.io is a meaningful technical experiment that reminds developers not to forget the essence of web technologies while chasing new frameworks and tools. HTML, CSS, and JS, combined with creativity and craftsmanship, are sufficient to build excellent experiences. For developers who want to deeply understand web development, pursue clean code, or are curious about the possibilities of framework-free development, this project provides valuable reference. Occasionally returning to basics may help you go further.