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AI 资讯 Dev.to

Building Reliable Event-Driven Systems: Event Schemas, Versioning, Contract Testing and Events vs Commands (part-3)

In this article, we're going to explore Event Schema evolution with Event versioning 10. Event Schemas Will Eventually Change No event schema stays the same forever. As businesses grow, regulations shift, products gain new features, and processes become more complex, the data shared between services must evolve as well. This evolution is not optional—it is a natural consequence of a system adapting to changing requirements. Many teams initially assume they can simply update an event whenever needed. This assumption may hold when there is only one producer and one consumer, but real-world systems rarely remain that simple. Over time, multiple consumers emerge, each with its own responsibilities and release cycles. A typical system often looks like this: OrderConfirmed | +------------------+-------------------+ | | | v v v Inventory Billing Notification | v Analytics | v Customer Insights Each consumer evolves independently. Some services may deploy updates weekly, while others might release changes quarterly. In some cases, consumers may even belong to external teams with entirely different priorities and timelines. Because of this, producers cannot assume that all consumers will upgrade simultaneously. Schema evolution, therefore, is not just about modifying data structures. It is fundamentally about maintaining compatibility across independently evolving systems. Compatibility Is More Important Than Version Numbers When discussing schema evolution, teams often focus immediately on versioning. While versioning is useful, compatibility is far more critical. Without compatibility, versioning alone cannot prevent system breakage. Consider the following event: { "orderId" : "ORD-1001" , "customerId" : "CUS-501" , "totalAmount" : 249.99 } Now imagine a new requirement introduces currency. One approach might replace the existing field entirely: { "orderId" : "ORD-1001" , "customerId" : "CUS-501" , "amount" : { "value" : 249.99 , "currency" : "USD" } } Although the data mo

Venkatesan Ramar 2026-07-17 17:27 7 原文
AI 资讯 HackerNews

Ask HN: Do you say please and thank you to your LLMs?

This is an orthogonal question to whether LLMs have qualia (almost certainly no) and to the question of whether any hypothetical qualia would be in any way correlated with word choice (also almost certainly no), as opposed to mechanistic factors such as runtime and memory access patterns.

healthworker 2026-07-17 17:27 4 原文
AI 资讯 Dev.to

Moonlight AI - The next big thing

This is the next big thing! I've been working on Moonlight AI for almost 6 months now and today I have big news. Automated Applications . That's right, Moonlight AI will have automated applications for the 2.0 version! What is Moonlight AI? Moonlight AI at first, was a project that was aimed to compete with Upwork. That definitely didn't work out even at the development phase so I had to pivot to another project. A month after the conception of the original version, I met a potential co-founder for a new initiative. Moonlight has been repurposed to be a capabilities mapping engine based on worker experience. We used a resume parser and a local LLM to map the capabiities based on skills and job experience alongside Github integration to use as proof of work. The project ultimately didn't work out, the potential cofounder was MIA so my only recourse was to rewrite Moonlight AI to be another thing, which ended up being a glorified job board which is how it works now. The Development Process Moonlight AI was vibe-coded in a night. Modifications were done the same way with different LLM models. LLMs today are what I call an automated entry-level developer since juniors is the wrong term because juniors at least have from 1-3 years of experience in the professional landscape and are more than just coding monkeys, where as entry-levels are just that, developers with 0 years of experience. Today, Moonlight AI should be done the correct way: reading the code and writing it too. Why let an LLM to do my job as well as think for me? DO YOU WANT ME TO GET ALZHEIMER? BECAUSE THAT'S HOW YOU GET ALZHEIMER! Anyways, exercising the mind is very important, that's what make us humans. People today have an obsession with automating their lives completely and end up like the humans in WALL-E. End of rant. The Future (Conclusion) I don't know the future, but I envision Moonlight AI to be a tool to make unemployed people lives a little less unbearable. I know how frustrating is to use a jo

Juan G De Jesus Torres 2026-07-17 17:24 7 原文
AI 资讯 Dev.to

The Go Era: What Actually Matters in TypeScript 7.0 (Beyond the 10x Speedup)

The tech world has spent the last year buzzing about the complete rewrite of the TypeScript compiler. Now that TypeScript 7.0 is officially out, the headline is clear: a native Go port delivering 8x to 12x build speedups and an instant editor experience. But if we look past the raw performance numbers, TypeScript 7.0 represents something much deeper. It is the most aggressive modernization sweep in the language's history. The TypeScript team used this architectural migration to eliminate a decade of technical debt, kill off legacy web standards, and restructure how the compiler interacts with the JavaScript ecosystem. If you are planning to upgrade your frontend or backend repositories, here is what actually matters, why the team chose Go, and the breaking changes you need to prepare for. 1. The Architectural Plot Twist: Why Go and Not Rust? When Microsoft first announced they were moving away from a bootstrapped JavaScript compiler to a native binary, the collective internet assumed they would choose Rust—the darling of the modern frontend tooling space (used by SWC, Turbo, and Oxc). Instead, the team chose Go , sparking heavy debate across the community. The reasoning reveals exactly how the TS team prioritizes stability over absolute micro-benchmarks: Bug-for-Bug Compatibility: The goal wasn't to write a brand-new compiler from scratch; it was a 1:1 faithful translation of the massive, decade-old TypeScript codebase. Go’s straightforward syntax allowed a clean mapping of existing JavaScript logic. The Memory Model Challenge: Compilers are inherently full of deeply nested, circular object graphs (ASTs, symbol tables, type structures). Managing these in Rust without heavily leaning on unsafe blocks or running into a brick wall with the borrow checker would have taken years. Garbage Collection Alignment: Go’s built-in garbage collection mirrors JavaScript’s memory model elegantly. This allowed the team to achieve multi-threaded parallelism safely and ship a stable p

zerocool 2026-07-17 17:22 8 原文
开发者 Dev.to

How I Built a Cute Virtual Pet Game with HTML, CSS, and JavaScript 🐹

Hi everyone! I’m a developer at the beginning of my journey, and I’ve just finished working on a small project that brought me a lot of joy: Capybara Game. It’s a cute game where you feed your capybara and improve her happiness level. You can choose between 5 different types of food or pick your own snack. If the capybara likes the snack, her happiness level rises; if she doesn't like it, the happiness level falls. Your progress is saved automatically. Keep in mind that your capybara gets hungry over time, so make sure to check back and feed her regularly! I went for a minimalist, cozy design. The interface is clean and intuitive, focusing on a relaxing user experience that lets the player focus entirely on the capybara. I built this project using HTML, CSS, and JavaScript. Hope you're interested in playing! You can do it here: Play the game here I’d love to hear your thoughts! If you have any ideas for new features or if you find any bugs, feel free to let me know in the comments.

Alexandru Sirbu 2026-07-17 17:21 10 原文
AI 资讯 Dev.to

Hugging Face Out of Space Fix: The Storage Trap

By default, whenever you request a machine learning model, the underlying architecture saves gigabytes of tensor data into a hidden directory located directly inside your home folder ( ~/.cache/huggingface ). Because standard bare metal and virtual cloud configurations typically isolate the root operating system on a smaller, highly optimized boot drive, pouring 140GB+ of raw weights into the home folder guarantees absolute storage exhaustion. Here is the engineering blueprint to fix it cleanly on Linux. The Cache Location Trajectory When attempting to solve this problem, avoid outdated tutorials recommending deprecated parameters like TRANSFORMERS_CACHE . Environment Route Support Status Architecture Impact HF_HOME Active Master Route Safely redirects all models, datasets, and core assets globally. TRANSFORMERS_CACHE Deprecated Warning Fails to capture datasets and will be removed in version 5.0. HUGGINGFACE_HUB_CACHE Deprecated Warning Legacy routing path that creates unnecessary diagnostic warnings. 🛑 The Symlink Security Risk Creating symbolic links (symlinks) to trick the OS into routing files elsewhere is a common anti-pattern. Mapping these links improperly or running your workflow with elevated rights introduces privilege escalation vulnerabilities, compromising container and host security. Step 1: The Permanent Environment Override To change your Hugging Face cache directory on Linux permanently, target an expansive secondary storage array instead by appending a direct master route into your user profile configuration: # Create a dedicated folder inside your secondary storage array sudo mkdir -p /mnt/massive_drive/ai_model_cache sudo chown -R $USER : $USER /mnt/massive_drive/ai_model_cache # Append the master environment variable to your bash profile echo 'export HF_HOME="/mnt/massive_drive/ai_model_cache"' >> ~/.bashrc source ~/.bashrc Step 2: The Python Import Order Mandate If you declare your custom storage location programmatically inside an application

Jakson Tate 2026-07-17 17:21 13 原文
开发者 MIT Technology Review

There’s a lot of hype around perimenopause. Don’t buy it.

Perimenopause has entered the chat. Perimenopause—and its better-known relative, menopause—used to be considered taboo. Not anymore, thanks at least in part to TV doctors and social media influencers. Perhaps it’s my age, but these days, both my algorithm and my conversations with friends increasingly swing toward perimenopause. Menopause is defined as the life stage that…

Jessica Hamzelou 2026-07-17 17:00 9 原文
AI 资讯 MIT Technology Review

The risk of weather data sabotage is rising

Every morning, airline dispatchers, grid operators, and farmers around the world make decisions based on the same thing: a weather forecast. While these forecasts are something that most people glance at for two seconds, weather predictions influence major strategic decisions in many industries, with real money, livelihoods, and even actual lives at stake. Farmers use…

Monique Kuglitsch, Jesper Dramsch, Franz G. Kuglitsch, Andrea Toreti 2026-07-17 16:57 8 原文
AI 资讯 Smashing Magazine

When It Makes Sense To “Block” The Main Thread

The common rule of thumb is to never “block” the browser’s main thread when running JavaScript tasks. But is this a hard rule? Victor Ayomipo describes a use case he encountered involving a screenshot extension where he made an exception to the rule and decided that blocking the main thread was absolutely the right thing to do.

hello@smashingmagazine.com (Victor Ayomipo) 2026-07-17 16:00 4 原文