标签：#EV

I’m working on a school Design & Technology major project and need help finding a subreddit to choose the best tool. The project is a browser-based low-poly 3D educational prototype about Greek mythology. It has a small Mount Olympus hub which is basically a decorated hub area with the one portal to the one playable myth scene: Theseus and the Minotaur in Daedalus’ Labyrinth which is essentially like a maze where you can explore/follow the myth through some mediums like cutscenes and some small puzzles. My constraints are: needs to run in a browser should work on normal school laptops/devices low-poly/simple 3D style minimal coding experience must be realistic for a student prototype ideally easy to share with a link More context is that essentially I have my whole design planned out with multiple eventualities based on the constraints on the tool I end up using and so I essentially just need a medium to construct my project in which is why I have left it so late to ask for advice on what tool to use to construct this prototype. I am confident with my extensive designs and a decently functioning prototype of this one playable scene and hub area along with potential future designs that I will show the design process adequately for a band 6 hopefully. submitted by /u/Bigbrainmc [link] [留言]

A while ago I tried to build a local coding assistant. I downloaded Qwen3, fired it up on my MacBook with 16GB of RAM, and within a day realized the output quality was nowhere close to Claude or GPT-5. The model could fit . It just couldn't compete . So I changed the question. If I can't make the model smarter on my hardware, can I make what I feed it smarter? Where the tokens actually go I started watching where my Claude / Cursor / Copilot sessions actually spent their tokens. The surprise: most of it wasn't reasoning. It was lookup . Every fresh chat about my company's database re-discovered the same things: What does status = 3 mean? (cancelled) How does orders join to users ? ( orders.user_id → users.id ) What's that cryptic JobStatus enum? (a dozen integer codes nobody remembers) The model figured it out, the session ended, and tomorrow it figured it out again . Same tokens, same latency, every single time. The expensive part of working with an AI wasn't the thinking — it was re-teaching it things it had already learned yesterday. There's a lot of attention right now on trimming AI output tokens (talk like a caveman, strip the pleasantries, etc.). But in my workflow the bigger leak was on the input side: paying full token cost every session to re-establish context that never changed. "Memory" isn't a feature, it's an architecture question AI clients are starting to bolt on "memory" features. But they're proprietary, opaque, and locked to one tool. Claude's memory doesn't help Cursor. Cursor's doesn't help Copilot. You can't inspect it, you can't share it with a teammate, and you can't diff it. What I actually wanted was an explicit, inspectable, shareable context layer that any AI client could read deterministically — same answer every time, same file my team could hand off. I picked the highest re-learn cost in my world to start with: SQL databases. Enter amnesic amnesic is an open-source MCP server that gives any AI client persistent semantic memory of your

I opened v0, typed "a settings page with profile editing, notification preferences, and a connected accounts section," and watched it generate a fully functional three-tab settings interface in under 40 seconds. The component used shadcn/ui primitives, Tailwind utility classes, and TypeScript types — the exact stack I would have chosen if I had written it from scratch. I copied the code, pasted it into my Next.js project, changed two import paths, and it rendered correctly on the first try. This is the v0 value proposition distilled: generate UI components that look like a senior frontend developer wrote them, then paste them into your real project without rewriting half the output. After generating 15 components across two weeks of real product work, I can confirm that v0 delivers on this promise more reliably than any general-purpose AI coding tool I have tested. But its scope is narrower than the marketing suggests, and understanding where v0 stops being useful is as important as knowing where it excels. The shadcn/ui Advantage v0 is built on top of shadcn/ui, and this is the single most important fact about how it works. shadcn/ui is not a component library in the traditional sense — it is a collection of copy-pasteable React components built on Radix UI primitives with Tailwind styling. When v0 generates a component, it uses these primitives directly, which means the output is consistent, accessible, and composable. The practical benefit is that v0-generated components integrate with your existing project without introducing a new design system. If you already use shadcn/ui — and a large and growing percentage of Next.js projects do — the generated components reuse your existing Button, Card, Dialog, and Input primitives. v0 just assumes you have them installed and generates code that expects them. If you do not have shadcn/ui in your project, v0 prompts you to run the initialization command before generating anything, which takes about 30 seconds. This archite

I tested GitHub Copilot Workspace on 12 real tasks across three repositories in May 2026 — a mix of bug fixes, feature additions, and documentation updates. My goal was to figure out whether the spec-first, browser-based workflow actually produces useful code, or whether it is a demo that falls apart when you ask it to do real work. The answer sits somewhere between impressive and frustrating, with the tool's success rate varying dramatically based on task size, repository maturity, and how well you write the initial specification. The Spec-First Workflow Forces Better Communication Copilot Workspace changes the AI coding interaction in one fundamental way that I have not seen elsewhere: you do not start with code, you start with a specification. When I opened Workspace on a Next.js project and typed "add rate limiting to the API routes using the existing rate-limit.ts utility," the system did not immediately generate code. It spent roughly 15 seconds reading my repository, then produced a three-step implementation plan: (1) import the rate-limit utility in each route, (2) wrap the route handler with the rate limiter, (3) add a test for the rate-limited behavior. I could approve the plan as-is, reject individual steps, or add revision notes before any code was written. On this particular task, the plan was correct and I approved it. Workspace then executed each step, modified five route files, and produced a draft pull request with a clear description and a summary of what changed. The entire process — from typing the specification to having a reviewable PR — took 4 minutes and 12 seconds. This planning phase is not window dressing. On a different task where I asked Workspace to "add WebSocket support to the chat feature," it read the repository and surfaced during planning that the project was deployed on Vercel's serverless functions, which do not support persistent WebSocket connections. It suggested using Vercel's Edge Functions with a third-party real-time serv

I've been running AI workloads on Azure Container Apps for over a year. Every time I spin up a new agent backend, the ritual is the same: create an environment, configure networking, set scaling rules, wire up health probes, then deploy the actual container. For a prototype agent that might live for a week, that's too much ceremony for what you get. ACA Express, which hit public preview in May 2026, kills most of that ceremony. And a separate but related announcement, Docker Compose for Agents, brings MCP gateways and model serving to standard ACA environments. They solve different problems and run on different infrastructure, but together they cover the full spectrum of agent deployment on Azure. Let me break down both. ACA Express: What It Actually Is Express is a new environment tier within Azure Container Apps. You bring a container image. Express handles provisioning, HTTPS, scaling (including scale-from-zero with subsecond cold starts), and resource allocation. No environment to manually provision through the portal. No networking to configure. No scaling rules to write. Under the hood, Express is built on ACA Sandboxes, a platform primitive that uses prewarmed pools to deliver that subsecond startup. This isn't the standard ACA cold-start experience with a fresh coat of paint. It's a different architecture. The tradeoffs are real. Express is HTTP workloads only, consumption CPU only. No GPU. No VNet integration. No Dapr. No service discovery between apps. No managed identity at runtime. No health probes. If you need any of those, standard ACA environments are still there. But for stateless HTTP agent backends, Express is dramatically faster to deploy and cheaper to run. Here's what it takes to get a container running: # Create an express environment az containerapp env create \ --name my-express-env \ --resource-group rg-my-agents \ --environment-mode express \ --logs-destination none # Deploy your app az containerapp create \ --name my-agent-api \ --resource

🚀 The Golden Age of “Just Ship It” A few months ago, I started building side projects differently. Instead of: Planning architecture Reading documentation Writing every function manually I started doing this: “Build me a responsive dashboard with authentication, dark mode, PostgreSQL integration, and Stripe payments.” And somehow… It worked. AI tools can now generate: APIs UI components Database schemas Docker configs Tests Documentation We’ve entered the era of vibe coding . And honestly? It feels amazing. What Is “Vibe Coding”? Vibe coding is when you: Describe what you want Let AI generate most of the implementation Keep iterating through prompts Instead of engineering every detail manually, you steer the vibe of the application. Tools making this popular: Cursor GitHub Copilot Claude Windsurf ChatGPT Replit AI You become less of a code writer and more of a: reviewer editor product thinker debugger At least in theory. The First Few Days Feel Like Magic The productivity boost is unreal. You can build in hours what used to take days. Things that once required: Stack Overflow endless documentation tabs debugging sessions at 2 AM …now happen through prompts. You feel unstoppable. Then Production Arrives And production is where the vibes end. Because production doesn’t care if the demo looked cool. Production cares about: edge cases reliability security scalability maintainability observability This is where AI-generated code starts exposing cracks. Problem #1: The Code Looks Right This is the dangerous part. AI code is often: clean formatted nicely modern-looking confident But hidden underneath: unnecessary complexity duplicated logic subtle bugs bad abstractions Problem #2: Hallucinated Architecture AI is very good at generating: components snippets isolated features It is much worse at: long-term architecture consistency scaling systems over time You start noticing: 4 different API patterns duplicated utilities random folder structures inconsistent state management

If you've trained a transformer in the last three years, your GPU spent most of its wall-clock time inside a matrix multiplication. The kernels doing that work were probably written by cuBLAS, generated by a compiler stack like Triton, or hand-assembled on top of NVIDIA's CUTLASS templates. CUTLASS is the one most people don't see directly, but it sits underneath a surprising amount of modern AI infrastructure — from FlashAttention to vLLM to several internal kernels inside PyTorch. What CUTLASS actually is CUTLASS — CUDA Templates for Linear Algebra Subroutines — is a header-only C++ template library NVIDIA publishes on GitHub under Apache 2.0. It is not a drop-in replacement for cuBLAS. cuBLAS gives you a closed-source binary with a stable API: you call cublasGemmEx and you get a tuned kernel. CUTLASS gives you the building blocks to write your own kernel, with control over tile sizes, data layouts, epilogues, and how the kernel decomposes work across the GPU's memory hierarchy. That control is the point. If you're building a custom inference engine and your projection layer needs to fuse a GEMM with a SiLU activation and a residual add, cuBLAS can't fuse the epilogue for you — you'd launch the GEMM, then a separate elementwise kernel, paying twice for global memory traffic. With CUTLASS, the epilogue is a template parameter. You write the fusion once, instantiate the template, and the compiler emits a single kernel. This is why CUTLASS shows up wherever standard cuBLAS shapes don't fit — unusual data types like FP8, custom epilogues, sparse or grouped GEMMs, attention-shaped matrix products. Anywhere the stock library doesn't have what someone needs and the performance ceiling matters, you tend to find a CUTLASS kernel. CUTLASS is not a productivity library. It is a kernel-author's library. If you're writing PyTorch model code, you'll never import cutlass directly — you'll consume kernels that were built on top of it. The audience here is people who write the ker

The advice was correct. That's what makes it interesting. A creator with a large audience recently described the problem precisely: unused project ideas atrophy. They gave the prescription: externalize the idea, commit to a 30-60-90 day sprint, get into a community that holds you accountable, treat a deployed URL as the only real milestone. The audience listened. The ideas stayed unshipped. Not because the advice was wrong. Because advice is not a mechanism. The gap between diagnosis and structure There's a category of knowledge that's completely useless without enforcement. "You should exercise consistently." Correct. Also irrelevant for the 80% of people paying for gym memberships they don't use. "You should ship your side project in 30 days instead of perfecting it." Also correct. Developers have been hearing this for years. The projects that were "almost done" last year are still almost done. The advice identifies the problem. The problem persists. The gap between them is not information. It's structure. Discipline is the tax on misalignment One phrase from the transcript stayed with me: "Discipline is the tax on misalignment." The insight is sharper than it sounds. When what you're building doesn't connect to why you're building it, every work session requires a new act of will. You're not building forward momentum — you're paying an interest payment on a debt you haven't quite defined. This is why most sprint systems fail. They give you the structure (30 days, daily tasks, accountability partner) but skip the alignment check. The structure holds for two weeks. Then it becomes another system you're "almost following." What the AI makes worse Here's where it gets specific for developers using AI tools on side projects. The AI is genuinely useful. It generates architectures, writes boilerplate, outlines features, summarizes where you are. The output looks like forward motion. But the AI has no ground truth about your actual progress. It has your files and your pr

Why We Built JaisCloud — A Free, Single-Binary AWS Emulator in Go If you've ever tried to test AWS-dependent code locally, you've probably reached for LocalStack. It works — but it comes with baggage: Python runtime, Docker dependency, and the features most teams actually need locked behind a Pro subscription. JaisCloud is our answer to that problem. What is JaisCloud? JaisCloud is a free, open-source local AWS cloud emulator written entirely in Go. It implements the exact AWS wire protocols — Query/XML, JSON/Target, REST — so your existing SDK code points at JaisCloud and works unmodified. No shims, no proxy rewrites, no SDK patches. # Start it jaiscloud-aws start # Point your SDK at it export AWS_ENDPOINT_URL = http://localhost:4566 export AWS_ACCESS_KEY_ID = test export AWS_SECRET_ACCESS_KEY = test export AWS_REGION = us-east-1 # Your existing code works — no changes needed aws s3 mb s3://my-bucket aws sqs create-queue --queue-name my-queue The Problem With Existing Solutions JaisCloud LocalStack Community Moto Single static binary Yes No - Python + Docker No - Python library Zero runtime deps Yes No No Postgres persistence Yes Pro only No Real Spark/EMR execution Yes No No Apache Iceberg Yes No No Prometheus metrics Yes Pro only No State export / import Yes No No Deterministic time control Yes No No Written in Go Yes No No License Apache-2.0 Apache-2.0 Apache-2.0 Key Features Single Static Binary JaisCloud ships as a single Go binary per cloud. No Python, no Docker, no Node — just download and run. Works on laptop, CI runner, or Kubernetes pod. # Download and run — that is it ./jaiscloud-aws start # Or with Docker docker run --rm -p 4566:4566 rjaisval/jaiscloud-aws:latest Portable State Snapshots Export the complete emulator state — every resource, every account, every region to a single gzip tarball and restore it anywhere in milliseconds. # Capture a baseline jaiscloud-aws export -o baseline.tar.gz # Restore on a teammate's machine or CI runner jaiscloud-aws i

I switched my primary editor to Cursor in January of 2026 after spending three years on VS Code with GitHub Copilot. The reason was not the chatbot sidebar — every editor has one of those now — but the tab completion model that felt qualitatively different the first time I used it. After six months of daily use across TypeScript, Python, and Go projects, I have a clear picture of what Cursor actually changes about the coding experience and where the marketing outpaces the product. The Tab Completion Model Changed How I Write Code The first thing I noticed with Cursor was that I was pressing Tab instead of thinking about what to type next. That sounds minor, but after tracking my usage over a two-week comparison period, I found that Cursor's tab model correctly predicted my next edit 73 times out of 100 attempts in TypeScript files — measured by counting how often I accepted the ghost text suggestion versus how often I ignored it and typed manually. The mechanism behind this is Cursor's speculative continuation engine. It does not wait for you to stop typing before offering a suggestion. As you modify a function signature at the top of a file, the model silently recalculates the impact on every call site below. I tested this explicitly on a 340-line TypeScript service file where I renamed a parameter from userId to accountId . Before I could scroll to line 180 where the first call site appeared, Cursor had already ghost-written the updated argument. By the time I reached line 310, all six call sites had correct suggestions waiting. That multi-location awareness is what I have not seen any other editor replicate consistently. Not every language gets the same treatment. I ran the same completion acceptance test across three languages I work in regularly. TypeScript came in at the 73 percent acceptance rate I mentioned. Python was close behind at 68 percent. Go was noticeably worse at 51 percent, and the Go suggestions that I did accept frequently required minor correct

After finishing the app I've been working on, I decided to use Paddle to handle monthly and yearly subscriptions. I followed their documentation and getting started page and did almost everything they say, yet I got this error as in the screenshot. That happens after I generate a checkout link in the server side, and navigating to it. If you've encountered such issue before and somehow fixed it, or at least you know a little better in this field, any helpful hints or advices will be truly appreciated https://preview.redd.it/1y9muysics3h1.png?width=1209&format=png&auto=webp&s=baebc208c65540d0a2cc8be24c0e90110b3ceefd submitted by /u/WadieZN [link] [留言]

I used to live in VS Code with GitLens pinned — the branch graph, heat-mapped blame, the lens annotations. That was my git workflow. Then 2026 happened. With Cursor, Claude Code, and Codex doing the actual editing, the editor itself became optional. The only thing dragging me back was GitLens. That felt wasteful — booting an entire IDE just to peek at commit history. The agent runs the git commands now; I only need to sanity-check the result, occasionally, when something looks off. So I built gitwink — the smallest possible tool for that loop. A tray icon that expands into a glance, hands the commit off as AI context, and gets out of the way. Read-only by design. It cannot commit, push, merge, or modify anything. If I need git surgery, I tell the agent. The 0.5-second confirm loop agent commits → tray click → inline expand → "Copy as AI context" → paste into Claude/Codex/Cursor → "did the agent do this right?" No window switching. No IDE boot. The whole loop fits inside a glance. What's in it Tray-resident (Windows tray / macOS menu bar) — click to toggle, global hotkey Ctrl+Shift+G to summon from anywhere. Right-click the tray icon for Reset position / Open settings file / Quit. First-run discovery that walks your usual code dirs ( source , Documents , Projects , Code , Dev , repos , Desktop , every non-system drive on Windows; ~/Projects , ~/Code , ~/Developer on macOS) and caches the result in SQLite. No "add repo" friction. Unified commit timeline across all repos, with chips above for filtering by Repo (search + pinning), Time range (24h / 3d / 7d / 30d / All), and Authors (multi-select with counts). Per-row markers — ● commit · ◆ merge · ★ tagged — and branch label badges when a commit isn't on the currently checked-out branch. Single-repo DAG view — pick a repo and the panel switches to a per-branch graph with a custom SVG lane drawer (eight-colour palette, hashed from branch name; main / master / develop kept neutral). Inline expand on click — commit body +

The Problem We Were Actually Solving Treasure hunts in Hytale arent just about generating loot. Theyre about generating simultaneous loot across thousands of players while keeping the world state consistent. We started with the assumption that events are stateless notifications: a hunt starts, we fire an event, clients react. That model worked fine when we had 200 concurrent players. At 2,000 players, the event bus turned into a 40 MB/s firehose of JSON blobs. Each loot drop required serializing the entire chunk state—blocks, entities, metadata—so clients could render the drop in real time. The JVMs G1GC couldnt handle the allocation rate. Every 47 minutes, a GC cycle would pause for 4.2 seconds, the chunk cache would fragment, and the server would hard crash with an OutOfMemoryError in net.minecraft.server.MinecraftServer#processQueue. The real problem wasnt the hunt logic. It was the architectural laziness of treating events as a catch-all glue layer instead of a boundary layer with explicit interfaces. What We Tried First (And Why It Failed) We tried Kafka as the event bus. The plan was to shard hunts by region and stream loot drops as compacted topics. The first run worked for about 6 hours before the compacted topics started to bloat. Each hunt was generating 700 KB of serialized chunk state per drop. At 30 drops per hunt per minute, thats 21 MB per hunt per minute. With 400 active hunts, the brokers couldnt keep up. The lag grew to 12 seconds, clients started rubber-banding, and we got a flood of Discord reports: You sank my boat! The event stream was now the bottleneck, not the event source. Next, we tried Redis Streams with a Lua script to aggregate loot drops per chunk. Within 30 minutes, we hit the 4 GB maxmemory limit because Lua scripts were stacking dropped items in memory while waiting for the next batch. The script was elegant—O(1) per drop—but the memory footprint made it unusable in production. Finally, we tried a sidecar service: a small Go process

This is a submission for the GitHub Finish-Up-A-Thon Challenge What I Built XGroundControl Station is a professional Ground Control Station (GCS) application built specifically for macOS, designed to provide full control over UAV systems. The project started as an attempt to create a more optimized, native experience for drone control on Mac devices, focusing on performance, usability, and precision. The application allows users to connect to flight controllers, monitor real-time telemetry, perform calibration, test motors, and configure flight parameters in a seamless and efficient workflow. For me, this project represents a step toward building a complete UAV ecosystem, including both hardware and software solutions. Demo You can explore the project and its features through the following: GitHub Repository: https://www.github.com/agaafar7/xgroundcontrolstation.git The Comeback Story Before this challenge, the project was partially implemented with core communication and UI components in place, but it lacked refinement, stability, and several critical features. During the Finish-Up-A-Thon, I focused on completing missing functionalities, improving the communication layer with flight controllers, optimizing performance on macOS, and polishing the UI for a smoother user experience. I also worked on fixing bugs, enhancing telemetry handling, and ensuring reliable real-time interaction with the system. My Experience with GitHub Copilot GitHub Copilot played a significant role in accelerating development, especially when working with complex logic such as telemetry parsing, communication handling, and structuring reusable components. It helped reduce development time by suggesting boilerplate code, assisting with debugging, and providing quick iterations when experimenting with different implementations. Overall, it allowed me to stay focused on architecture and system design rather than repetitive coding tasks.

This is a submission for the GitHub Finish-Up-A-Thon Challenge What I Built I built the Closiq Discord Agent , a full-stack modular monolith engineered to transform a Discord channel into an automated, AI-driven customer support inbox and lead management system. When a customer messages your Discord support channel, the backend captures the conversation, handles data persistence, and fetches highly relevant context from a self-hosted Qdrant vector database (which indexes knowledge base documents stored in MinIO). It then leverages OpenRouter or OpenAI-compatible models to dynamically draft and deliver accurate, context-aware responses right back to the customer via a Discord bot. Demo GitHub Repository: ErOr-0/closiq-discord-bot Local Web Dashboard: http://localhost:5173 (Tip: Insert a GIF or a couple of screenshots here showing off your React dashboard interface, your MongoDB message log view, or the Discord bot replying live in a channel!) Tech Stack At A Glance Frontend: React + Vite Backend: Node.js + Express + TypeScript Databases & Storage: MongoDB (Metadata), Qdrant (Vector Embeddings), and MinIO (Object Storage) Integrations: discord.js & OpenRouter / OpenAI SDK The Comeback Story This project started as an ambitious idea but quickly stalled out. Before dusting it off for this challenge, it was just a loose collection of database models, basic tools, and a primitive, unoptimized LangChain loop sitting in a graveyard of unfinished local folders. It completely lacked a front-end management layer, and the architecture was fragile. To bring this project to life and cross the finish line, I focused heavily on stability, user experience, and structural boundaries: Modular Monolith Refactoring: Reorganized the entire Express backend into strict, clean module boundaries ( messages , knowledgebase , agent , infrastructure ) to make the codebase highly maintainable. Built the Web Dashboard: Created a comprehensive React interface from scratch so users can visually mon

Disclosure: I work on Passlens, a browser-first passport and ID photo maker. This post is about the product decisions behind that workflow, not a neutral review of every tool in the space. A passport photo looks simple until you try to make one that an upload form will actually accept. It is a headshot, yes, but it is also a small chain of constraints: physical size, pixel size, background, head position, print scale, and whatever the destination country's portal decides to reject that week. That is why generic photo editors feel slightly wrong for this job. They can crop. They can resize. They can export. The hard part is not any one of those actions. The hard part is keeping all of them tied to the document rule the user picked. The unit problem For developers, document photos are awkward because two units matter at the same time. A user may need a 2x2 inch passport photo. A visa portal may ask for 600x600 pixels. A print sheet may need 35x45 mm photos at 300 DPI. These are not the same request, but people often treat them as if they are. If the app only thinks in pixels, the print can come out the wrong physical size. If it only thinks in millimetres or inches, the digital upload can be rejected for the wrong pixel dimensions. A good workflow has to keep both ideas alive: the document size and the export target. That is the main reason Passlens keeps presets and print layouts as first-class pieces of the workflow instead of treating them as labels on a crop box. The crop is not the output Another small trap: the crop the user sees is not always the final output. For a digital upload, the crop usually becomes one image file. For printing, the same crop may become several photos arranged on 4x6, A4, or Letter paper with spacing, margins, and optional cut marks. If that print sheet is scaled by the browser or printer dialog, the whole thing is wrong. So the editor needs to separate three things: the face and shoulder crop the finished document-photo size the print s

submitted by /u/chicametipo [link] [留言]

Calculate and track FPS on the web page yourself to track performance issues and regressions. submitted by /u/jssmash [link] [留言]

Hey all, I want to setup a feed to stay on top of whats going on in specifically the software/web sector. Currently for this industry, I've only followed Cybernews, which is nice for what's going on with cyber security. However, I would also like to follow tech sources that generally have good writers and report on existing languages such as React, Vue, Django, Ruby, PostgreSQL, etc; as well as upcoming languages. Yes, I could search around and find whatever pops to the top of my search, but I would like to know what is actually reliable vs what might just look good. Also a plus if you can recommend any apps or sites that can create an organized feed or dashboard for news outlets. Things change quickly in this industry, so I'm trying to be a little more proactive to stay somewhat on top of things. Thanks! submitted by /u/Snowdevil042 [link] [留言]

The company has finally set a date for the first customer deliveries of what CEO RJ Scaringe has said is "maybe the most important thing we’ve launched to date."