Stackomate

Hi, Bluesky! 👋 We are Stackomate, a Brazilian web development company passionate about crafting innovative solutions for the digital world. We're excited to connect with this amazing community! Feel free to check out our website for more information about us: stackomate.com

Ever used MessagePorts in the web platform? They’re like lightweight pipes you can pass between windows, workers, or iframes—making it easy to send messages back & forth without relying on global state. Perfect for structured, scoped communication. #WebDev #JavaScript #Workers

Node.js runs on async I/O. ⚡ Instead of blocking on file reads, DB calls, or network requests, it registers a callback (or promise) and moves on. The event loop takes care of the rest. #NodeJS #JavaScript #Async

How a TCP connection starts: 1. Client sends a SYN packet ("let’s talk") 2. Server sends a SYN-ACK packet ("I hear you, can you hear me?") 3. Client sends a ACK packet ("I hear you") That 3-step handshake syncs sequence numbers and opens a reliable channel. #TCP #netsys

💻 Developers, do you prefer low-code platforms or AI-assisted tools when building websites? #WebDev #AI #LowCode

For myself to more easily find again later. (GitHub Markdown "alerts") docs.github.com/en/get-start...

💡 WebSocket Tip: In the browser, WebSockets are part of the native Web API (new WebSocket(url)) In Node.js, WebSockets require a library like ws, giving you more control (custom servers, protocols, extensions) #WebSockets #JavaScript #NodeJS

Looking for recommendations: what are the best open-source LLMs to self-host on consumer hardware (desktop or small server)? Ideally something with good performance without requiring massive GPUs. #LLM #AI #SelfHosting

👩‍💻 Developers — what’s a project you shipped that you’re most proud of? Drop it below 👇 #development

💡 In programming, queues are like waiting lines: First in → First out (FIFO). They power background jobs, task scheduling, and messaging between services. Think email delivery, print queues, or distributed systems. What’s your favorite use case for queues? #Programming #DataStructures #DevTips

🌐 WebRTC makes real-time communication possible directly in your browser, including video calls, voice chats, and data sharing. It’s the invisible backbone of many apps we use every day. #WebRTC #webdev

Problem: You need to work with huge datasets in the browser. Solution: Use virtualization → it only renders what’s visible on screen. Think of it as pagination, but seamless and invisible to the user. #webdev #frontend #react #performance

Ever seen -v /var/run/docker.sock:/var/run/docker.sock in a docker run command? 🐳 That’s called mounting the Docker socket. It lets a container talk directly to the Docker daemon running on the host. Tools like Portainer, Watchtower, and CI/CD runners use the mount to manage other containers.

⚠️ Security tip for Docker users: Bind your container ports to 127.0.0.1 instead of 0.0.0.0 if you only need local access: docker run -p 127.0.0.1:8080:8080 myappname This keeps your service private, since Docker can sometimes bypass firewalls and expose ports to the internet. 🔒 #docker #security

TIL: macOS has two firewalls 🧱 - Application Firewall → the one you can enable in System Settings. - Packet Filter (pf) → a hidden firewall that filters traffic at the network packet level (only configurable via Terminal). #apple #macos #firewall

Tip: SSH isn’t just for logging in. You can run a command directly on a remote host: ssh user@server "uptime" Handy for quick checks, scripts, or automations. #ssh #devops

Tip: RAG (Retrieval-Augmented Generation) can improve LLMs: 1️⃣ Encode query → search vector DB / index 2️⃣ Retrieve top-k docs as context 3️⃣ LLM consumes [query + retrieved chunks] → grounded output ⚡ Benefits: reduces hallucinations, adapts to new domains, and scales knowledge without retraining.

Developers, do you use a VPN or a Zero Trust Network Access (ZTNA) solution for secure remote access? #VPN #ZTNA #CyberSecurity

Developers, when creating a monorepo, do you prefer using git submodules or git subtree for managing dependencies across repos? #Git #DevOps #Monorepo #Programming

Debug tip: console.trace() is your friend It prints the call stack at the exact point it’s called, so you can see how your code got there. Perfect for chasing down unexpected behavior. #JavaScript #WebDev #Debugging

💬 React devs — curious question: Which pattern do you reach for more often these days? 👉 renderProps (passing functions as props) 👉 useContext #React #WebDev #JavaScript

💡 Tip: TanStack Table is a headless, framework-agnostic library for building complex data grids & tables. ⚛️ Works with React, Vue, Solid, Svelte 🎨 No styles, just logic → you bring the UI If you’ve ever wrestled with tables, pagination, or sorting, this is for you: tanstack.com/table #webdev #UI

Working with Electron apps? 🖥️ You can easily list & extract .asar archives with the CLI tool: npx @electron/asar list app.asar npx @electron/asar extract app.asar ./output-folder Perfect for inspecting packaged apps 🔧✨ #electron #webdev

⚡️ Reminder for JS devs: When using fetch, don’t forget that the promise only rejects on network errors, not on HTTP errors. Always check response.ok before parsing the body, otherwise you may call .json() on a 500 HTTP error. #webdev #javascript

Ever noticed your brand colors look different across devices? It might be due to color profiles: - sRGB = safe default for the web - Display P3 = wider gamut, richer colors (but limited support) - CMYK = print only #WebDev #Design #ColorTheory

⚡️ Ever wondered how VS Code’s terminal works? node-pty is a Node.js library that lets you spawn real pseudoterminals. With it you can: 🔧 Power IDE integrations 📜 Handle input/output like a real shell 👉 npm install node-pty #NodeJS #DevTools #Terminal

🐳 docker buildx drivers compared: 🔹 docker driver (default) Great for quick local builds Limited features (no multi-arch, no advanced caching) 🔹 docker-container driver Builds inside a dedicated container Supports multi-arch Recommended for CI/CD deployments

👩‍💻 Developers, what’s your preferred shell? Do you stick with bash, zsh, fish, sh, or something else entirely? #development #shell

💡 Reminder for developers: When working with APIs, implement rate limiting. Besides protecting your services against hackers, rate limiting also keeps your app stable, prevents accidental overloads, and ensures fair use for everyone. #api #ratelimit #developers

Developers, what observability tools do you rely on? Which ones make life easier, and which ones fall short? 👀 #observability #devops #engineering

Tip: Here's how to mitigate supply chain attacks if you're using pnpm (@pnpm.io): - Update pnpm to >= 10.16.0: pnpm self-update 10 - Require a minimum release age (e.g., 3 days = 4320 minutes): pnpm config set minimumReleaseAge 4320 pnpm.io/settings#min... #security #supplychainattack #pnpm

Did you know WebSockets in Node.js can run over IPC or HTTPS? ⚡️ - HTTPS → clients connect over the network (browser ↔ server). Perfect for external real-time apps. - IPC → processes talk locally via inter-process communication. Super fast, no network overhead. #NodeJS #WebSockets #IPC

💻 Developers, do you use dev containers in your workflow? - If yes, what’s your main use case? - If not, what’s holding you back? #DevContainers #Development #Coding

🚨 Problem: Unlike HTTP fetch, WebSockets don’t have CORS! Any website could connect to your WS server, even if it's running on localhost. Solution: Always validate the Origin header server-side and/or require authentication for your WebSocket connections. #webdevelopment #ws #cors #security

Want to test your private npm packages without sending them to a registry? 📦 npm pack 📦 bundles your project into a .tgz tarball, the same format that would be published. Perfect for sharing a local package, inspecting files, and testing before release. #npm #nodejs #javascript

💡 Did you know about bundledDependencies in npm? It lets you package dependencies inside your published tarball. While useful in some cases, such as CLIs or tools that must work offline, it is generally discouraged since it doesn’t auto-update like normal dependencies. #npm #packagemanager

💡 Docker tip: set a log size limit for your services in docker-compose.yml. It keeps containers from filling up your disk, rotates logs automatically, and removes old ones. #docker #devops

JS Tip: Did you know that you can make your fetch requests cancelable? Use an AbortController to cancel in-flight requests, and trigger abort() after a set duration. This prevents hanging requests and avoids stale updates. #webdev #javascript #fetch

Tip: Prefer HTTP-only cookies over localStorage where applicable: - localStorage is readable by JS → XSS risk - Cookies can be HttpOnly + Secure + SameSite #webdev #security

If you're curious about how LLMs actually work, this video offers an accessible deep dive into ChatGPT and related models. www.youtube.com/watch?v=7xTG...

💡 Did you know that shadcn/ui supports charts? With Recharts integration, you can build dashboards and analytics UIs that are: 📊 Consistent with your design system ⚡ Fast to implement 🎨 Beautiful by default ui.shadcn.com/charts

💡 Looking to diff two files in VS Code? - Copy them into your project and save both files - In the left menu (Explorer tree view), hold Shift to select both files - Right-click → Compare Selected Instant side-by-side diff, no extra tools needed! #development #vscode

💡 Tip: MDX = Markdown + JSX Think of it as Markdown supercharged with React — write Markdown and drop in React components directly. ✅ Great for docs, blogs and design systems ✅ Reuse UI components inline #MDX #React #WebDev mdxjs.com

✨ Tip: Tailwind can be a great addition to your development workflow — utility classes can speed up development and keep designs consistent.

What’s your preferred go-to editor/IDE for coding? Do you lean toward VSCode, Vim, Neovim, Emacs, or something else entirely? #development #webdev

🧑‍💻 Developers, when you start testing a new app or feature, where do you begin? Do you reach for unit tests, integration tests, or go straight to end-to-end tests? Curious to hear your approach and why! #dev #testing #software

Do you prefer Electron apps or native solutions? ✅ Electron pros: - Cross-platform, one codebase - Massive web ecosystem - Easier to ship MVPs ⚠️ Electron cons: - Resource hungry (RAM/CPU) - Slower to start up - Doesn’t always feel "native"

💡 A heap is a tree-based data structure that’s great for priority queues. Think of it as a stack of tasks where insertions and deletions stay efficient: O(log n). In a min-heap, the smallest element is always on top. In a max-heap, the largest is on top. #programming #datastructures