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TL;DR Welcome back to Dev Opportunity Radar. This is a weekly series where I share opportunities,...

TL;DR Welcome back to Dev Opportunity Radar. This is a weekly series where I share opportunities,...

TL;DR Welcome back to Dev Opportunity Radar. This is a weekly series where I share opportunities,...

TL;DR Welcome back to Dev Opportunity Radar. This is a weekly series where I share opportunities,...

In this blog post, we will see how I use Qwen Code's slash commands and workflow strategies to build Achu my screenshot beautifier app without burning through tokens or losing context mid-session. If you haven't heard of Achu , it's a desktop app built with Electron + React + TypeScript. It does screenshot beautification, Privacy Guard (offline OCR redaction), Auto-Vibe (palette-extracted backgrounds), and an AI Bug Agent with GitHub integration. It's a side project I'm genuinely proud of, and Qwen Code has become my go-to agentic coding CLI for it. A developer shares their day-to-day workflow for using Qwen Code, an open-source agentic coding CLI, to build Achu, a desktop screenshot beautification app built with Electron, React, and TypeScript. The post covers how slash commands like /init, /plan, /compress, /remember, and /btw are used to manage context, reduce token costs, and maintain consistent output across sessions. The core approach centers on spec-driven planning through iterative /plan sessions before any code is written, combined with parallel subagents for independent tasks and strict context hygiene using /compress and /clear. Additional practices include pointing the model at library source code instead of documentation and using /remember to persist architectural decisions across sessions. This isn't a tutorial about what Qwen Code is. It's about how I actually use it day-to-day, the slash command tricks I rely on, and the discipline it takes to get real work done with an LLM in a terminal. It all started with Google Antigravity, but the 5 hours reset and weekly limits is killing my productivity and thinking flow. I had to switch to more affordable and open source model where I chose Qwen. Why Qwen Code? I've tried Claude Code, Gemini CLI, and a bunch of others. Qwen Code is open source, has excellent subagent support, a rich slash command system, and Qwen Max is genuinely strong at reasoning through complex TypeScript and Electron internals. My go-to

As developers, we compare files constantly — reviewing pull requests, checking config changes, spotting bugs between versions. But not all diff tools are created equal. Some require installation, some upload your files to remote servers, and some just don't support the formats you need. Here's a rundown of the best free file diff tools available in 2026, so you can pick the right one for your workflow. 1. FileDiffs — Best for Privacy & Format Support If you work with sensitive files or just don't want your data sitting on someone else's server, FileDiffs is the tool you need. What makes it stand out: Supports 60+ file formats — PDF, Word, Excel, code files, JSON, XML, CSV and more Runs entirely in your browser — client-side processing means your files never leave your device 100% private — zero data transfer, zero uploads, zero risk No install, no signup, no hassle — just open and compare It's the go-to tool when you need to compare files quickly without worrying about privacy or compatibility. 2. Meld — Best Desktop Diff Tool Meld is a classic open-source visual diff and merge tool for Linux, Windows, and macOS. It's great for comparing files, directories, and version-controlled projects. Best for: Developers who prefer a desktop app and work heavily with Git. 3. Beyond Compare — Best for Power Users Beyond Compare is a feature-rich diff tool with support for files, folders, FTP, and cloud storage. It's not free (paid after trial) but worth mentioning for its depth of features. Best for: Teams that need advanced folder sync and merge capabilities. 4. Diffchecker — Quick Online Diffs Diffchecker is a simple web-based diff tool for text and code. It's quick and easy but uploads your content to their servers and has limited format support compared to FileDiffs. Best for: Quick one-off text comparisons where privacy isn't a concern. 5. KDiff3 — Best for Three-Way Merges KDiff3 is a free, open-source diff and merge tool that supports three-way comparison. It's a bit dat

TL;DR Welcome back to Dev Opportunity Radar. This is a weekly series where I share opportunities,...

As developers, we often lose hours to repetitive tasks - formatting data, debugging auth tokens, or wrestling with encoding issues. The right set of utility tools can cut that overhead significantly. Here is a curated breakdown of the categories and tools worth keeping in your daily workflow in 2026. JSON and Data Formatting Tools Working with raw, minified API responses is a real productivity killer. A browser-based JSON formatter with real-time validation and proper indentation helps you parse and debug responses in seconds - without sending your data to third-party servers. Similarly, XML is far from dead; SOAP APIs and enterprise integrations still rely on it, so a solid XML formatter with XPath support is worth having around. On the frontend, a CSS minifier that handles dead code removal and selector optimization can meaningfully reduce your page load times. Data Conversion Utilities Modern stacks often have to bridge the gap between formats. A JSON-to-XML converter is critical when integrating with legacy systems, but look for one that handles arrays and special characters correctly. CSV-to-JSON converters help structure flat export data from spreadsheets or databases into something your application can consume. And if your deployment pipeline involves YAML config files, a formatter that catches indentation errors before they break your CI/CD run is essential. Encoding and Security Helpers Base64 encoding comes up constantly - from embedding images in CSS to building HTTP Basic Auth headers. A reliable encoder/decoder handles all these cases without fuss. URL encoding matters too; unencoded special characters in query strings cause subtle API bugs that are surprisingly hard to track down. For authentication debugging, a JWT decoder lets you inspect token payloads without needing to verify the signature - ideal for local development and troubleshooting. Code Generation and Color Utilities Distributed systems need collision-resistant unique IDs - a UUID generato

Two weeks ago I shared a collection of 6 financial calculators. The response was incredible, so I kept building. Today, fi-calc.com has 25 completely free calculators covering every major personal finance need: 🏠 Housing • Mortgage Calculator (full PITI + amortization schedule + pie chart) • Rent vs Buy Calculator • House Affordability Calculator • Refinance Calculator 💰 Investing & Retirement • Compound Interest Calculator • Investment Return Calculator • Future Value & Present Value Calculators • ROI Calculator • Retirement Savings Calculator • 401(k) Calculator • FIRE Calculator (Financial Independence) 💳 Debt & Loans • Loan Comparison Calculator • Auto Loan Calculator • Student Loan Calculator • Credit Card Payoff Calculator • Debt Payoff Calculator (Avalanche method) 📊 Everyday Finance • Budget Planner (50/30/20 rule) • Savings Goal Calculator • Inflation Calculator • Salary & Take-Home Pay Calculator • Net Worth Calculator • Currency Converter (15+ currencies) • CD Calculator • Sales Tax Calculator ✨ Tech Stack • Pure vanilla HTML/CSS/JS — no frameworks • Chart.js for animated interactive charts • Responsive design (mobile-friendly) • All calculations run client-side in your browser • No data collection, no accounts, no cookies 🔗 Give it a try: fi-calc.com The entire site is free and open. I built it because I was tired of calculator sites with paywalls, signup walls, and bloated ad experiences. Would love feedback from the community! What other calculators should I build next?

Old School RuneScape has some of the most punishing—and rewarding—boss fights in any MMORPG. But unlike modern games that hand-hold you through a linear storyline, OSRS drops you into a massive open world with dozens of bosses and almost no guidance on which ones you should actually fight at your current level. If you've ever asked yourself: "I have 70 Attack—now what? Where do I even start with bossing?"—this guide is for you. The reality is that boss progression in OSRS isn't just about combat level. It's about unlocking content , learning mechanics , building gear on a budget , and scaling difficulty at the right pace . Rush into Vorkath at combat 90 with Tier 30 gear, and you'll bleed GP on deaths. Wait too long, and you'll miss out on millions of GP/hour that could have accelerated your account. This roadmap is designed to take you from your first boss kill to endgame PvM—with exact combat level ranges, gear checkpoints, EXP/hour benchmarks, and the reasoning behind every step. Table of Contents Why Boss Progression Matters The Three Pillars of Boss Readiness Phase 1: Pre-Boss Foundation (Combat 1–60) Phase 2: Your First Boss Kills (Combat 60–75) Phase 3: Mid-Game Bossing (Combat 75–90) Phase 4: Late Mid-Game Unlocks (Combat 90–105) Phase 5: Endgame PvM (Combat 105–126) Gear Progression Pathway Common Progression Mistakes (And How to Avoid Them) Conclusion: Your Bossing Journey Starts Now Why Boss Progression Matters Most OSRS players approach bossing backwards. They see a max-level player at Vorkath making 2M GP/hour, and they want that. So they grind combat to 80, buy some mid-tier gear, and head straight to Vorkath. Result? They die twice, spend 500K on gear repairs and supplies, and walk away thinking bossing isn't worth it. The problem isn't the boss. It's the progression . Bossing in OSRS is a skill, just like any other. Every boss teaches you a specific mechanic: prayer flicking, movement, eating under pressure, or managing multiple enemies. If you skip

TL;DR Welcome back to Dev Opportunity Radar. This is a weekly series where I share opportunities,...

TL;DR I've missed a lot of opportunities simply because I didn't know they existed. So every...

Over the past few years, my workflow as an engineer has changed a lot. I went from the occasional...