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Aerospace completely revolutionized my workflow after 15 years of using macOS the way Apple intended. I no longer hunt for apps and windows in Mission Control or drag them around spaces to organize. I can open as many windows as I need and have them all under my fingertips. And instead of swiping around to find one, I instantly teleport to where they are. This incredible software is technically aimed at advanced users. It’s installed from the command line and offers extensive configuration options. For basic use though, you don’t need to configure it at all, and if you have opened the Terminal application before and know what running a command means, you should be good to go. Rest assured, I will not show you how to configure Aerospace with Vim, or show you how to create an elaborate but useless dashboard! Just the essentials to get you started. How to set up Aerospace Aerospace is a menu bar application, but you can’t download it from an App Store or get it as a DMG file. You need a package manager. Go to the Homebrew website and follow the installation guide. Make sure to accurately follow the on-screen instructions. This may include any of the following: A prompt to enter your password. When you type passwords in Terminal, you will not see stars or anything. Just make sure you’re typing the correct one and hit Enter. A prompt to install XCode Command Line Tools . Somewhere around the end of the installation process, you may get a prompt to run some extra commands, which depend on your system. Make sure you run them as instructed. To test if you have correctly installed Homebrew, run which brew in Terminal. If you see a path printed out, like /opt/homebrew/bin/brew , you’re good to go. If not, something has gone wrong. Try searching for other, more focused guides on installing Homebrew. With Homebrew, you can install applications from the Terminal app using the brew command. For Aerospace, you would run the following command: brew install --cask nikitabobko/tap/ae

Hey DEV community! 👋 I built IMGVO — a free image tool that works entirely in your browser. What it does Convert JPG, PNG, WebP, AVIF, HEIC and more Compress images up to 90% without quality loss Crop, resize, rotate, watermark Works offline (PWA) Why I built it Most image tools upload your files to servers. I wanted something private and instant. Tech 100% vanilla JavaScript No backend, no server Works offline as PWA Privacy first No files uploaded to any server. Everything runs locally in your browser. 🆓 Free, no signup required. 👉 Try it: https://imgvo.com Would love your feedback! 🙏

Hello, I'm Shrijith Venkatramana. I'm building git-lrc, an AI code reviewer that runs on every commit. Star Us to help devs discover the project. Do give it a try and share your feedback for improving the product. Large Language Models have made it surprisingly easy to generate text. Building a reliable AI application, however, is a completely different problem. Once you move beyond a simple "send prompt, get response" demo, you quickly encounter real-world concerns: Prompt management Structured outputs Multi-step workflows Tool calling Observability Evaluation Model switching Production debugging Many teams end up creating custom frameworks around OpenAI, Anthropic, Gemini, or local models just to manage these concerns. This is where Genkit comes in. Originally developed by Google, Genkit provides a framework for building AI-powered applications with a focus on workflows, tooling, observability, evaluation, and production readiness. While most examples online focus on Node.js, Genkit now has growing support for Go, making it an interesting option for backend engineers who want AI capabilities without introducing an entirely separate application stack. In this article we'll build practical examples and explore how Genkit helps structure real-world AI systems. Why Genkit Exists Most AI applications evolve like this: Phase 1: response := callLLM ( prompt ) Everything seems simple. Phase 2: You need: Retry logic Prompt versioning JSON outputs Tool integrations Tracing Metrics Human review workflows Now your codebase starts accumulating AI-specific infrastructure. Genkit attempts to provide these building blocks from day one. Think of it as: "Spring Boot for AI workflows" rather than "an LLM SDK." Installing Genkit for Go Create a new project: mkdir genkit-demo cd genkit-demo go mod init github.com/example/genkit-demo Install Genkit: go get github.com/firebase/genkit/go/ai Depending on your provider, you'll also install provider plugins. For Gemini: go get github.com/fi

Introduction Excel is a spreadsheet application developed by Microsoft that helps users organize, analyze and visualize data. It is used by businesses, organizations, researchers and students worldwide because it makes working with data easier and more efficient. Business Decision Making One of the ways Excel is used in real-world data analysis is in supporting business decision-making. Companies collect data such as customer information, financial transactions and sales records. Excel helps in organizing and analyzing this data using tools such as formulas and PivotTables. This makes it easier to identify trends and patterns in business performance, such as which products to stock and when to restock them. For example, a supermarket can analyze the monthly sales in Excel to identify the best-selling products and ensure that they remain in stock. Marketing Performance Excel is also used to analyze marketing performance. Businesses use it to track data from marketing campaigns such as website visits, social media engagement and sales conversions. This information is organized using charts and reports, which help evaluate which strategies are producing the best results. This allows companies to allocate their resources more effectively and improve future campaigns based on data rather than assumptions. As a result, Excel plays an important role in helping businesses understand their customers and improve the effectiveness of their marketing efforts. Financial Reporting Excel is widely used in financial reporting. It helps businesses to organize and analyze financial statements such as income statements, cash flow reports and balance sheets. It is also used to record transactions, calculate totals, and generate summaries that show the financial health of the business. By using built-in formulas and functions, accountants can quickly compute profits, expenses, taxes and forecasts with a high level of accuracy. Excel also allows the creation of financial charts and dashb

I built AIPDFKit because I kept running into the same friction: needing to do something simple with a PDF -- redact some sensitive info, pull out a table, or convert a document to Markdown -- and every tool either required an account, put the good stuff behind a paywall, or made me wonder what was happening to my files afterward. PDFKit is my answer to that. PDFKit -- Free AI-Powered PDF Tools PDFKit is a free, browser-based PDF utility suite powered by AI, built for developers and technical professionals who need fast, reliable document processing without the friction of paid plans or mandatory accounts. Whether you're parsing data out of PDFs, sanitizing sensitive information, or converting documents into developer-friendly formats, PDFKit gets the job done in seconds. What it does AI-assisted PII redaction -- automatically detect and mask emails, phone numbers, names, and more Table extraction to Excel -- pull structured data out of PDFs without copying and pasting PDF to Markdown conversion -- especially useful for feeding document content into LLMs or RAG pipelines These aren't just format converters. The AI layer means the output is clean, structured, and actually ready to use. Privacy first No account creation required. PDFKit stores no user data and automatically deletes all uploaded files after one hour. For developers handling client documents or sensitive data pipelines, this is a meaningful differentiator over SaaS tools that retain files indefinitely. Who it's for Developers preprocessing PDFs before feeding them into RAG pipelines Anyone automating document workflows People who need to quickly extract structured data without spinning up a Python script Anyone dealing with sensitive documents who can't afford to have files sitting on someone else's servers It's the kind of utility you bookmark and reach for constantly. Built to be fast, free, and frictionless. Check it out: https://www.aipdfkit.com/ Would love to hear what features you'd find most usefu

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5 Principles of Survival for Software Engineers Adapted from Leon Business School's "5 Principles of Survival" Your stack won’t save you. Your principles will. In the wild, survival isn’t about having the best gear. In software, survival isn’t about having the absolute best framework. It’s about how you operate when production is on fire, the roadmap shifts overnight, and AI just turned your "moat" into a weekend hobby project. Here are 5 core principles that keep you alive in modern software engineering. 1. 🔥 Adapt or Perish Change is not optional; it is the price of survival. In the wild: The species that cannot adapt to winter dies. In software: The team that cannot adapt to change dies slowly at first, then all at once. "Localhost is for amateurs" used to be a strongly held belief. Now, Claude writes a full CRUD API in 30 seconds on localhost . "We’re a React shop" was a proud identity. Now, HTMX ships the same feature before your Webpack build even finishes. Your identity as an engineer cannot be tied to a specific tool. Your identity is solving problems . The syntax is temporary. Agreement on what to build is what actually matters. 🛠️ Survival Action Every quarter, deliberately kill one "we’ve always done it this way" rule in your workflow. 2. 🧭 Stay Calm Under Pressure Panic is the first casualty of poor preparation. In the wild: Panic burns critical calories and gets you lost. In software: Panic causes a git push --force to main on a Friday at 4:59 PM. Outages don’t kill companies. Panicked responses do. The team that has clear runbooks, relies on feature flags, and can execute a rollback in under 90 seconds stays calm. Why? Because they prepared when it was quiet. If your first step in incident response is opening X (Twitter) or complaining in a public Slack channel, you have already lost. 🛠️ Survival Action If you don't have a tested rollback plan, you don't have a deployment plan. Write it down before your next release. 3. 💡 Resourcefulness Over Resources

Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is...

When I started learning Data Science, I expected to spend my first week writing Python code, exploring machine learning models, and working with advanced tools. Instead, I spent most of my time in Excel. At first, it felt underwhelming—just rows, columns, and simple spreadsheets. But within a few days, I realized something important: Excel is not a basic tool at all. It is one of the most widely used tools in data analysis, business decision-making, and reporting. 📊 Real-World Uses of Excel Excel is widely used across industries for handling and analyzing data. Some of the most common uses include: Business Analysis - Tracking sales and identifying trend Accounting and Budgeting - Managing Expenses, Profits and Financial reports Marketing Analysis - Measuring campaigns performance and customer behavior Data Entry and Management - organizing large datasets efficiently Businesses rely on Excel because it helps turn raw data into meaningful insights for decision making. 🛠️ Key Excel Features I Learned In my first week, I explored several important Excel Features that help with data organization and analysis: Excel Interface Overview - I first explored how Excel is organized, including Ribbon, Worksheets, Cell, Row, Columns, and formula bar. this helped me understand how to navigate the tool before working with data Data Sorting - Organizing data by numbers, Text and Dates Filtering - Showing only relevant data based on condition Data Validation - Ensuring accurate and consistent data entry Freeze Panes - Keeping header Visible while scrolling through large datasets. These features make working with data much easier, faster and more structured. 🧮 Basic Excel Functions I learned I was also introduced to some basic Excel functions used in Data Analysis. Aggregate Functions - SUM - Add all values in a range - AVERAGE - Calculate the mean of a dataset - COUNT - Counts numerical entries in a dataset Conditional Functions - SUMIF () and SUMIFS()** - Add values that meets one

Inspired by Nir Eyal's "beliefs are tools" framework Beliefs are tools, not truths. Tech stacks are too. Pick the ones that work for you. Most "tech debt" is actually "belief debt". We hold onto frameworks, patterns, and processes long after they stop serving the product. To build great software, we need to introduce a core rule: If a tech belief or "best practice" doesn’t solve a real problem for you right now, it must be treated as false. Here is how to audit your tech beliefs using 5 filters. 1. ARE THEY USEFUL? The real question isn’t "Is this the best tech?" It’s "Does this serve the user?" Tools are tools. Keep the ones that ship. Bad belief (Treat as False): "We need Kubernetes because it’s the industry standard." Useful belief (True for Now): "A $5 VPS serves 10k users. We’ll use K8s when we have a scaling problem, not a resume problem." If your architecture choice doesn’t make the core loop faster, cheaper, or simpler for users, it’s not serving you. Delete it. 2. ARE THEY TESTED? A useful stack holds up when the world pushes back. Pay attention to production, not the trending blog posts. Bad belief (Treat as False): "Microservices are inherently more scalable"—said before you even have 2 concurrent users. Tested belief (True for Now): "Our monolith handles 50 req/s perfectly. We’ll split services only when latency exceeds 300ms in prod." Load test it. Dogfood it. If it only works in a conference slide deck, it’s a story, not a tool. 3. ARE THEY OPEN? A tech choice you can’t change has stopped being a tool and has become a cage. Hold opinions firmly, but hold implementations loosely. Bad belief (Treat as False): "We’re a React shop forever." Open belief (True for Now): "React serves us today. If HTMX lets us ship this feature in 2 days instead of 2 weeks, we’ll use HTMX." In a famous study on hope, Curt Richter’s rats swam for 60 hours when they believed rescue was coming. Your team will grind for years on a legacy stack if they believe it can actually be r

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Six months ago, I sat down with a YouTube playlist, a blank notebook, and one goal: learn Python. What I did not expect was how hard it would be, not the Python itself, but figuring out how to actually learn it. I started with a YouTube playlist. Simple enough. Except nobody tells you what to do after you watch a video. Do you rewatch it? Take notes? Jump straight to code? I had no system. I'd watch a concept, feel like I understood it, open VS Code, and stare at a blank file. That's when I realized I had fallen into passive learning. And passive learning in the age of AI is a particularly dangerous trap, because it's so easy to confuse activity with progress. I could watch a video, feel good. I could ask Claude to explain a concept, feel good. I could even ask AI to write code, read it, nod along, and feel like I'd learned something. I hadn't. I'd just consumed. There's a difference. The real moment of honesty came when I was stuck on a coding problem. My instinct, everyone's instinct now is to open ChatGPT or Claude immediately. And I knew, sitting there with the cursor blinking, that if I did that every single time I got stuck, I was building nothing. My brain would never develop the muscle of working through problems. I would be someone who can prompt AI to code, not someone who can think in code. And in a world where AI can already write decent code, the person who can't think independently isn't valuable. They're replaceable. So I had to build a system that forced me to actually learn. After a lot of trial and failure, I landed on a 5-phase checklist that I wrote out by hand and kept next to my laptop. Phase 1: is what I call First Contact — watch one focused video, then write a summary purely from memory, then discuss it with an LLM not to get answers but to pressure-test what I thought I understood. Phase 2: is Deep Understanding — read a written source, write proper notes, map the concept visually, and list every edge case and exception I can find. Phase 3:

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Most AI short-form video demos skip the boring part. They show a finished TikTok, Reel, or YouTube Short. Maybe they show the prompt. Maybe they show the generated script or the final render. But the hard part is not making one video. The hard part is making the fifteenth video without the whole system turning into a pile of one-off scripts, half-remembered FFmpeg commands, broken captions, inconsistent hooks, and manual upload steps. That is where I think the conversation around AI video automation gets more interesting. Not: Can an AI generate a Short? But: What workflow does an AI agent need to generate Shorts repeatedly? I was looking at a Terminal Skills use case for building an AI short video generator, and the useful part is not the fantasy of "push one button, print infinite content." The useful part is the stack. The real job is a pipeline A short-form video generator sounds like one tool. In practice, it is a pipeline: topic research -> script -> voiceover -> footage or visual generation -> subtitles -> assembly -> platform formatting -> upload -> analytics Each step has different failure modes. Topic research can produce generic ideas. Scripts can be too long. Voice can drift from the brand. Footage can mismatch the narration. Subtitles can land under platform UI. FFmpeg can export a technically valid file that a platform still hates. Uploads can succeed in the API but fail the actual publishing workflow. If you try to solve all of that with one giant prompt, the agent has to keep too much operational knowledge in its head. That is fragile. The better pattern is to split the workflow into skills. What a skill gives the agent A skill is not just a code snippet. For this kind of workflow, a useful skill tells the agent: when to use this capability what inputs are expected what output should exist afterward what validation is required when to stop instead of pretending success That last point matters. For media automation, "the command ran" is not enough. Th

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