AI 资讯
Supercharge Your Crypto and Stock Analytics with lunarcrush-go
Are you building a trading dashboard, a market sentiment tracker, or a financial data pipeline in Go? If so, you know that gathering reliable social intelligence and market data is often a complex, messy process. You have to juggle raw HTTP requests, decode deeply nested JSON payloads, and manually handle rate limits. But what if you could access a wealth of crypto and stock social intelligence idiomatically, right where your Go code lives? Enter lunarcrush-go , a powerful, zero-dependency SDK designed to seamlessly integrate the LunarCrush API v4 into your Golang applications. In this article, we will explore why lunarcrush-go is the ultimate tool for developers looking to tap into social and market intelligence, how to get started in under 60 seconds, and why its zero-dependency architecture makes it a robust choice for production workloads. Why LunarCrush? Before diving into the SDK, it is worth understanding what LunarCrush brings to the table. LunarCrush goes beyond traditional price charts. It measures what the internet is actually saying about Bitcoin, Ethereum, Tesla, and thousands of other assets. By analyzing social buzz, creator impact, and overall market sentiment across various platforms, LunarCrush provides a holistic view of the market 1 . Whether you want to know the Galaxy Score of a specific coin, track the hourly social time-series of a stock, or get AI-generated insights on a trending topic, LunarCrush has you covered. Introducing lunarcrush-go The lunarcrush-go library was built with one primary goal: to provide clean, typed, and production-ready access to every LunarCrush endpoint without pulling in a single third-party dependency. It speaks Go natively, meaning you do not have to wrestle with raw JSON or hand-roll your own retry loops. Key Features Here is what makes lunarcrush-go stand out: Complete API Coverage: The SDK supports every LunarCrush endpoint, including Coins, Stocks, Topics, Categories, Creators, Posts, Searches, AI summaries, a
开发者
Deciding to Appear: One Year of Shifting into Development
Nice to meet you! I'm Andrew It's been a year since I joined the community. I started developing a bit earlier, and changing my career just by learning and practicing is far from what I had planned. I cannot help but be thankful for each course and tutorial, and each developer and tutor who has shared some knowledge and wisdom with me. It is still too early to know exactly what I will fix, build, or vibe to improve the world, but I will do my best... print ( " Hola mundo, aquí vamos! " ) Follow my journey on GitHub "I'm curious to hear from others—what was the biggest challenge you faced during your first year of coding? Or, if you're just starting, what's one thing you're excited to build?"
AI 资讯
The 10 Most Expensive Software Failures in History — and the One Thing They Share
The biggest losses in software history were, with one deliberate exception, not attacks. They were silent, correlated, self-inflicted — and they teach the exact risk autonomous AI agents are about to make expensive again. At 9:30 in the morning on August 1, 2012, Knight Capital Group was one of the largest trading firms in the United States, executing a sixth of all the volume on the New York Stock Exchange. By 10:15 it was, for practical purposes, finished. In those forty-five minutes a piece of its own trading software (not a hacker's, its own) fired more than four million unwanted orders into the market, accumulating roughly $7 billion in positions the firm never meant to hold and a loss of about $440 million by the time humans understood what their machine was doing. The cause, documented in the SEC's administrative proceeding, was almost insultingly small: a deployment that updated seven of eight servers. The eighth still carried a dormant piece of code called Power Peg, retired years earlier, and the new release reused the old feature flag that woke it up. No one attacked Knight Capital. The market data was accurate, the exchange functioned perfectly, and every system reported itself healthy while the company bled ten million dollars a minute. That shape (no adversary, no alarm, one change propagating everywhere at once) turns out to be the shape of almost every entry on the list below. We've written before about the biggest bug-bounty payouts in history , the ledger of what it costs when someone does attack. This is the other ledger, the bigger one: what software has cost when nobody attacked at all. Every figure below states what it counts, and comes from a primary or authoritative source (inquiry boards, SEC filings, statutory inquiries) linked at the end. The ledger 1. CrowdStrike outage (2024) — roughly $5.4 billion in direct losses to Fortune 500 companies alone (estimate). One faulty content update to the Falcon Sensor security agent blue-screened Windo
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I thought building a video speed controller would take a weekend. The analytics nearly broke me.
It was 2 AM on a Tuesday, and I was staring at my CourseSpeed dashboard looking at a graph that claimed I had just finished a 14-hour AWS certification course in 47 minutes. I hadn't. I was just testing the 16x speed toggle. But my analytics engine thought I was a god. When I started building CourseSpeed—a browser extension to inject custom playback speeds and track learning analytics across Udemy, Coursera, LinkedIn Learning, and Skillshare—I thought the hard part would be the UI. It wasn't. Injecting a floating control panel and setting document.querySelector('video').playbackRate = 2.5 takes about ten lines of JavaScript. The actual nightmare was the learning analytics. Specifically, accurately tracking effective watch time versus wall-clock time across wildly different Single Page Applications (SPAs). The naive approach that burned me My first pass at the analytics tracker was straight out of MDN. I listened to the standard HTML5 video events. // The approach that worked perfectly in my head const video = document . querySelector ( ' video ' ); video . addEventListener ( ' ratechange ' , ( e ) => { sendAnalytics ({ type : ' speed_change ' , rate : e . target . playbackRate }); }); video . addEventListener ( ' timeupdate ' , () => { logWatchTime ( video . currentTime , video . playbackRate ); }); This worked flawlessly on Udemy. Then I opened LinkedIn Learning. The dashboard flatlined. Then I tried Coursera. The time spent was wildly inaccurate, drifting by minutes over an hour. I spent three days debugging this, tearing my hair out over console logs. Here is what I missed: modern learning platforms don't just drop a raw <video> tag on the page and leave it alone. They wrap it in custom players, throttle events to save CPU, and dynamically destroy and recreate the DOM node when you skip chapters or when the SPA router transitions. My event listeners were getting orphaned. Or worse, they were firing with stale data because the platform's custom wrapper was dispatc
产品设计
AWS Now Gives You a Free Sandbox Account - No Credit Card, No Cost, 8 Hours to Build (2026)
AWS just announced free Sandbox environments which lets any AWS Builder Center user to provision...
产品设计
I Deleted 200 Lines of Code I Didn't Write and Learned More Than When I Wrote It...
Quick note before we dive in — I know I've been off track from the iOS/Swift series lately. I just...
AI 资讯
Multi-tenant SaaS architecture patterns
Multi-tenancy is the decision that quietly shapes your entire SaaS backend. Get it right and you scale smoothly to thousands of accounts. Get it wrong and you're rewriting your data layer under load, mid-growth, with customers watching. The good news: for most products the right answer is simpler than the internet suggests. The three models There are three canonical ways to isolate tenants, and they trade isolation against operational cost: Row-level (shared schema). Every table has a tenant_id\ column, and every query filters on it. One database, one schema, all tenants together. Schema-per-tenant. Each tenant gets its own PostgreSQL schema inside a shared database. Stronger isolation, more objects to manage. Database-per-tenant. Each tenant gets a dedicated database or instance. Maximum isolation, maximum operational weight. Why row-level wins for most SaaS For the overwhelming majority of B2B SaaS products, row-level multi-tenancy is the right default. It's the cheapest to operate, the easiest to run migrations against, and it scales further than founders expect. The objection is always "but isolation" — and Postgres has a strong answer. Row-Level Security (RLS) lets the database itself enforce that a query can only see its own tenant's rows. With Supabase , RLS is the native model: you set a policy once, and even a buggy query can't leak across tenants. Combined with a tenant_id\ on every table and an index that leads with it, this pattern comfortably serves large customer bases. One caution from hard experience: write RLS policies so helper functions run once per query, not once per row . A policy that re-evaluates a lookup for every row will quietly turn fast endpoints slow as tables grow. Wrap the check so the planner runs it as an init-plan. When to reach for stronger isolation Escalate deliberately, not reflexively: Regulatory or contractual isolation — a customer requires their data in a physically separate database. Noisy-neighbor risk — one whale tenant'
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Monorepo vs polyrepo
How you split your code into repositories seems like a plumbing decision, but it quietly shapes how your team collaborates, ships, and reasons about the system. A monorepo keeps everything in one repository; a polyrepo gives each service or app its own. Neither is universally right, and the loudest opinions online usually ignore your actual stage and team size. Here's how to think about it clearly. What a monorepo buys you A monorepo puts your web app, mobile app, backend, and shared libraries under one roof. The advantages are real, especially for smaller teams: Atomic changes. Update a shared type and every consumer in the same pull request. No cross-repo coordination dance. One source of truth for tooling. A single lint, format, and CI config instead of drift across a dozen repos. Effortless code sharing. Shared TypeScript packages are just imports, not published versions you have to bump and reinstall everywhere. Easy refactoring. You can find and fix every caller of a function because it's all in front of you. Tools like Turborepo and Nx make this practical by caching builds and only running work for the parts that actually changed. What a monorepo costs The trade-offs show up as you grow. Build and CI times can balloon without smart caching. Access control is coarser — it's harder to give a contractor one service without the whole codebase. And a naive setup rebuilds and tests everything on every change, which gets slow fast. Good tooling mitigates all of this, but you have to invest in it deliberately. What a polyrepo buys you Separate repositories give each service hard boundaries . A team owns its repo end to end, deploys on its own schedule, and can't accidentally reach into another team's internals. Access control is naturally granular, CI for each repo is small and fast, and the blast radius of a bad change is contained. The cost is coordination. A change that spans services becomes multiple pull requests across multiple repos that must land in the right
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Microservices vs monolith
Microservices have a marketing problem: they're associated with the engineering cultures of Netflix and Amazon, so ambitious teams assume adopting them is what serious companies do. But those companies moved to microservices to solve problems of enormous scale and huge headcount — problems you almost certainly don't have yet. For most products, splitting too early is one of the most expensive mistakes you can make. Here's the honest trade-off. What a monolith actually gives you A monolith is one deployable application. That simplicity is a feature, not a limitation, especially early: One codebase, one deploy. No orchestration, no service mesh, no distributed tracing just to understand a request. Simple debugging. A stack trace crosses your whole request. You're not correlating logs across five services to find one bug. Fast local development. Run the whole app on your laptop and iterate. Easy transactions. Data consistency is a database transaction, not a distributed saga you have to design and get right. The modern version isn't a big ball of mud. A modular monolith enforces clean internal boundaries — separate modules with clear interfaces — giving you much of the organization of microservices with none of the network overhead. What microservices actually cost Splitting into services doesn't remove complexity; it moves it from your code into the network, where it's harder to see and reason about. You inherit a long list of new problems: Distributed systems failure modes — partial failures, retries, timeouts, and eventual consistency become your daily reality. Data consistency across services — no more easy transactions; you're designing sagas and compensating actions. Operational overhead — every service needs deployment, monitoring, logging, and on-call. Slower local development and debugging — reproducing a bug can mean running half your architecture. For a small team, this overhead can consume the very velocity you were trying to gain. When microservices genuin
开发者
Design não se faz sozinho: Friends of Figma mudou como eu vejo design
Abertura Eu sempre participei de comunidades de tecnologia: grupos de estudo do Google,...
开源项目
Lovable reportedly in talks to double its valuation to $13.2B
The $300 million round is expected to be led by Menlo Ventures, Sifted reported.
AI 资讯
From Prompts to Pipelines: How I Use Agentic Coding as an Engineering Workflow
I am interested in agentic coding for the same reason I care about good engineering process in general: I want work to move forward in a way that is inspectable, repeatable, and resilient once the task gets messy. A lot of AI-assisted coding still feels like improvisation. You ask for something, get a result, adjust the prompt, try again, and hope the useful reasoning is still somewhere in the scrollback. That can work for tiny edits. It gets much less convincing when the task starts touching architecture, tests, review, or pull requests. What I want instead is a workflow where the model helps me think and execute, but inside a structure I can inspect afterwards. I want artifacts, gates, and something I can resume tomorrow without reconstructing the entire mental state from memory. That is why I use po8rewq/agentic-skills . It gives me a practical way to do agentic coding as an engineering workflow rather than as a long sequence of chat turns. A task moves through requirements, architecture, implementation, checks, review, and pull request creation. Each stage leaves something I can read, verify, and challenge. What makes this interesting to me The interesting part is not just that there is a CLI. Plenty of tools have a CLI. What matters to me is that it turns AI-assisted coding into a staged system: requirements force the task to become explicit architecture makes risks visible before code is written implementation happens against a plan instead of against a vague prompt checks and review happen as part of the flow, not as an afterthought runs are resumable, so interruptions do not destroy context That changes the feel of the work quite a bit. Instead of asking "what should I prompt next?", I am usually asking "what stage is this task in, and what should exist before I move on?" Where this really clicked for me was when I noticed I was spending less energy trying to preserve context in my head and more energy evaluating actual outputs. What the repository actually
AI 资讯
Stop writing a test-data builder for every class in .NET
If you've ever written test data by hand, you know the ritual: a PersonBuilder , an OrderBuilder , an AddressBuilder … one hand-written builder per class, each one a wall of WithX(...) methods you have to maintain forever. The Test Data Builder and Object Mother patterns are great — the boilerplate is not. XModelBuilder gives you a fluent builder for any C# class out of the box. No per-class builder required. It handles constructor parameters, init-only properties, read-only members, even private backing fields — via reflection, deterministically. Install dotnet add package XModelBuilder 30-second example You can use it fully standalone (no DI container) through a small static facade: using XModelBuilder.Default ; var order = For . Model < Order >() . With ( x => x . OrderDate , new DateTime ( 2026 , 7 , 1 )) . With ( x => x . Lines [ 0 ]. Product , "Widget" ) // deep paths + indexers just work . With ( x => x . Lines [ 0 ]. Quantity , 3 ) . Build (); No OrderBuilder , no OrderLineBuilder . The Lines[0].Product path drills into a nested collection element and sets it for you. Need a whole list? Create.Models<Order>(10) . Deterministic fakers, seeded once Random test data that changes every run is a debugging nightmare. XModelBuilder ships a seeded, dependency-free faker (and a Bogus integration if you prefer). Register it once: services . AddXModelBuilder () . AddXFaker ( seed : 12345 ); // reproducible values, every run Then let it fill in the noise while you set only what your test actually cares about: var order = xprovider . For < Order >() . With ( x => x . Id , p => p . XFake (). NewGuid ()) . With ( x => x . Customer . Name , p => p . Bogus (). Company . CompanyName ()) . With ( x => x . Lines [ 0 ]. Quantity , 3 ) . Build (); XFake().NewGuid("customer-acme") even gives you a stable GUID from a name — same key, same GUID, regardless of call order or parallelism. Deterministic by design. Build a whole list: BuildMany Need ten of something, each slightly differ
开源项目
Automating cross-repo documentation with GitHub Agentic Workflows
Explore how the Aspire team turns merged product changes into SME-reviewed docs pull requests, closing the gap between release and documentation. The post Automating cross-repo documentation with GitHub Agentic Workflows appeared first on The GitHub Blog .
AI 资讯
Messi and Ronaldo Are Building Tech Portfolios. Mo Salah Is Playing a Different Game
Lionel Messi and Cristiano Ronaldo are betting on AI, health tech, and startups. Mohamed Salah is taking a more traditional route beyond football.
AI 资讯
With EU backing, QuantumDiamonds aims to speed up chip manufacturing
Like its U.S. counterpart, the European Chips Act aims to foster the semiconductor industry — in part thanks to state subsidies. One of the beneficiaries is QuantumDiamonds, a German startup that applies a novel approach to inspecting chips.
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The FTC Settlement With John Deere Is a Huge Win for the Right-to-Repair Movement
After more than a decade of pushback, farmers and repair advocates have won access to equipment and services John Deere had long kept under its control.
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I Built a Self-Improving AI, and So Can You
Experiments in using AI to build AI show that the future doesn’t just belong to the frontier labs.
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Stratagems #9: Lena and P Watched Two AI Suppliers Fight. The Logs Said Neither Was Clean.
Watch the fires burning on the far shore. Don't cross until they've burned themselves out. — The 36...
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Epoch Duel: Cyberpunk LLM Alignment Battle
Have you ever wondered how AI engineers fine-tune and align large language models? Under the hood, they run Supervised Fine-Tuning (SFT), optimize parameters using direct preference gradients (DPO), filter out low-quality pre-training corpuses (Pruning), and mitigate catastrophic drifts. To help you visualize how LLM alignment and parameter optimization work in a highly strategic way, I built a cyberpunk card battler inspired by Gwent: 🤖 Epoch Duel: Cyberpunk LLM Alignment Battle Play in Fullscreen Mode (if the embed sizing is tight) 🛠️ Tune Your Model Parameters Your mission as an alignment engineer is to play optimizer cards to outscore the adversarial baseline AI across 3 training Epochs: ⚙️ Logic & Coding: Run SFT code snippets, compile theorem provers, and deploy Python scripts to build your coding benchmark scores. 📖 Language & Speech: Train on multilingual datasets and summarization corpuses to maximize reading comprehension. 🛡️ Safety & Alignment: Implement red-team safeguards, configure RLHF preference pairs, and run DPO tuning to protect your model's outputs. ⚡ regularizers & Drifts: Deploy Regularization cards like Gradient Clipping (Scorch) and Model Pruning to destroy anomalies, or exploit Anomalous Drifts to collapse the AI's rows. 🧬 Playable ML Concepts Explained Here is how the card battle mechanics map to production machine learning pipelines: 1. ✂️ Model Pruning (Weight Compression) In-Game: Playing the Model Pruning card triggers a glitchy dissolution animation that purges the lowest-value card from the targeted board row, cleaning up noise. 💾 The Real-World Counterpart Model Pruning removes unimportant weights (often those closest to zero) from a trained neural network. It shrinks the memory footprint of the model, allowing it to run faster on edge devices. ⚠️ How it affects LLMs By stripping out low-impact weights, pruning compresses models by 30-50% with minimal loss in benchmark accuracy, making deployment significantly cheaper. 2. 🔀 DPO vs RL