This project presents a tiny JavaScript PubSub implementation weighing in at a mere 163 bytes. It provides basic publish and subscribe functionality, allowing developers to broadcast messages on specific topics (strings) and have subscribed functions execute when those topics are published to. The library focuses on extreme minimalism, sacrificing features like wildcard subscriptions or complex message filtering for an incredibly small footprint. This makes it suitable for resource-constrained environments or situations where a full-fledged PubSub library would be overkill.
The blog post demonstrates a technique for creating lightweight, CSS-only low-quality image placeholders (LQIPs) using a combination of base64 encoded, heavily compressed, blurred versions of the final image embedded directly within the CSS. This method avoids extra HTTP requests and JavaScript, offering a performant way to improve the perceived loading experience. The blurred image is scaled up and positioned as a background, while the actual high-resolution image loads in the foreground. Once the full image loads, it covers the placeholder seamlessly. This approach provides a smoother visual transition and eliminates the jarring "pop-in" effect often seen with other placeholder methods.
HN users generally praised the technique described in the article for its simplicity and minimal code footprint. Several commenters appreciated the avoidance of JavaScript, leading to improved performance, particularly on mobile devices. Some pointed out potential drawbacks, such as the doubled image payload and a slight flash of unstyled content (FOUC) if the CSS loads after the image. A few users suggested alternative approaches, including inline SVG blur filters and using the background-image property instead of <img> tags for placeholders, while acknowledging trade-offs related to browser compatibility and control over the blurring effect. Overall, the discussion highlighted the ongoing search for efficient and elegant image placeholder solutions, with this CSS-only technique seen as a valuable addition to the developer's toolkit.
Manifest is a single-file Python library aiming to simplify backend development for small projects. It leverages Python's decorators to define API endpoints within a single file, handling routing, request parsing, and response formatting. This minimalist approach reduces boilerplate and promotes rapid prototyping, ideal for quickly building APIs, webhooks, or small services. Manifest supports various HTTP methods, data validation, and middleware for customization, while striving for ease of use and minimal dependencies.
HN commenters generally express interest in Manifest's simplicity and ease of use for small projects. Several praise the single-file approach and minimal setup. Some discuss potential use cases like rapid prototyping, personal projects, and teaching. Concerns are raised about scalability and suitability for complex applications. A few users compare it to similar tools like Flask and Sinatra, questioning its advantages. Some debate the merits of its integrated templating and routing. The author actively engages in the comments, addressing questions and clarifying the project's scope. Several commenters express appreciation for the "batteries-included" approach, though acknowledge the potential limitations.
SafeHaven is a minimalist VPN implementation written in Go, focusing on simplicity and ease of use. It utilizes WireGuard for the underlying VPN tunneling and aims to provide a straightforward solution for establishing secure connections. The project emphasizes a small codebase for easier auditing and understanding, making it suitable for users who prioritize transparency and control over their VPN setup. It's presented as a learning exercise and potential starting point for building more complex VPN solutions.
Hacker News users discussed SafeHaven's simplicity and potential use cases. Some praised its minimal design and ease of understanding, suggesting it as a good learning resource for Go and VPN concepts. Others questioned its practicality and security for real-world usage, pointing out the single-threaded nature and lack of features like encryption key rotation. The developer clarified that SafeHaven is primarily intended as an educational tool, not a production-ready VPN. Concerns were raised about the potential for misuse, particularly regarding its ability to bypass firewalls. The conversation also touched upon alternative VPN implementations and libraries available in Go.
This GitHub repository provides a barebones, easy-to-understand PyTorch implementation for training a small language model (LLM) from scratch. It focuses on simplicity and clarity, using a basic transformer architecture with minimal dependencies. The code offers a practical example of how LLMs work and allows experimentation with training on custom small datasets. While not production-ready or particularly performant, it serves as an excellent educational resource for understanding the core principles of LLM training and implementation.
Hacker News commenters generally praised smolGPT for its simplicity and educational value. Several appreciated that it provided a clear, understandable implementation of a transformer model, making it easier to grasp the underlying concepts. Some suggested improvements, like using Hugging Face's Trainer class for simplification and adding features like gradient checkpointing for lower memory usage. Others discussed the limitations of training such small models and the potential benefits of using pre-trained models for specific tasks. A few pointed out the project's similarity to nanoGPT, acknowledging its inspiration. The overall sentiment was positive, viewing smolGPT as a valuable learning resource for those interested in LLMs.
Summary of Comments ( 20 )
https://news.ycombinator.com/item?id=43529774
Hacker News users discussed the minimalist JavaScript pub/sub implementation, praising its small size and cleverness. Some questioned its practicality for complex applications, suggesting larger libraries like mitt might be more suitable due to features like wildcard subscriptions and unsubscribing. Others debated the value of minimizing bundle size in modern web development, with some arguing that 163 bytes is a negligible saving. A few commenters suggested improvements or alternative implementations, including using a Map instead of an object for storing subscriptions to avoid prototype pollution issues. Overall, the reception was positive, though tinged with pragmatic considerations regarding real-world usage.
The Hacker News post discussing the 163-byte JavaScript PubSub implementation has generated several comments, primarily focusing on the code's size, efficiency, and practicality.
One commenter questions the value of such a minimal implementation, arguing that the small size comes at the cost of features and robustness found in more established PubSub libraries. They suggest that using a slightly larger, but more feature-rich library would likely be a better choice in real-world applications. This commenter also raises the point that minification often obscures the actual usefulness and readability of the code, implying that the 163-byte size is less significant than it appears.
Another comment chain discusses the potential drawbacks of using a single global event bus, highlighting the possibility of naming collisions and the difficulty of managing subscriptions in larger applications. They advocate for more structured approaches, such as namespacing or using a library that provides better organization.
One commenter focuses on the potential performance implications, specifically the use of
eval()for executing the subscriber functions. They raise concerns about the security and efficiency implications of usingeval()and propose alternative methods that could be more performant and secure.Further discussion revolves around alternative small PubSub implementations, with users sharing links to similar projects and comparing their sizes and features. Some commenters appreciate the minimalist approach and see the code as an interesting demonstration of how concise JavaScript can be. They acknowledge that while it may not be suitable for complex applications, it could be useful for smaller projects or educational purposes.
A few comments dive into the specific code details, suggesting potential optimizations or pointing out potential issues. For example, one comment mentions the use of the
thiskeyword inside the subscriber functions, which might not behave as expected depending on the calling context.Overall, the comments represent a mixture of perspectives, with some praising the brevity of the code while others question its practicality and raise concerns about potential issues. The discussion highlights the trade-offs involved in prioritizing code size over features and maintainability, ultimately suggesting that the choice of a PubSub implementation depends heavily on the specific needs of the project.