#Developer Tools.
Developer tools tutorials covering IDEs, plugins, productivity extensions, and essential development software.
Files.md & AGENTS.md: Emerging Standard for AI Context (2026)
Learn how FILES.md and AGENTS.md standardize repository context, architectural rules, and project memory for AI coding agents like Claude Code, Cursor, and Windsurf.
How to Train a Local LLM on CPU Only (2026 Fact Check & Guide)
Fact check: Yes, you can fine-tune small language models on CPU without a GPU. Learn how to train LoRA adapters locally using llama.cpp and Hugging Face PEFT.
10 MCP Servers Every Developer Should Know in 2026
The best MCP servers for GitHub, databases, Slack, browsers, and more. Official references, community-maintained servers, and custom builds — tested across Claude Code, Cursor, and Windsurf.
The Trust Crisis in AI Coding: 84% Use It, 3% Trust It
84% of developers use AI coding tools but only 3% highly trust the output. Why trust is so low, real examples of failures, and how to build a healthy skepticism into your workflow.
Best AI Code Review Tools in 2026: Comparison & Guide
Compare CodeRabbit, GitHub Copilot Code Review, Amazon CodeGuru, Qodo, and GitLab Duo. Pricing, accuracy benchmarks, integration depth, and which to use for your team.
Aider: The Open-Source Claude Code Alternative You Should Know (2026)
Aider is the closest open-source equivalent to Claude Code — 45K GitHub stars, works with any model, auto-commits to Git. Complete setup guide with architect mode, model comparison, and workflow tips.
uv Cheat Sheet: The Fast Python Package Manager (2026)
Complete uv reference — install packages, manage projects, run scripts, pin Python versions, and migrate from pip, poetry, and pyenv with working commands.
Warp Terminal Cheat Sheet: Shortcuts, Workflows & AI Features
Complete Warp reference — block-based terminal, command palette, workflow commands, AI autocomplete, custom themes, and team features in 2026.
React Hooks Cheat Sheet: All Hooks with React 19
Complete React Hooks reference — useState, useEffect, useMemo, useCallback, custom hooks, and React 19's new use(), useOptimistic, and useActionState.
Terraform Cheat Sheet: IaC Commands, HCL & State
Complete Terraform reference — init, plan, apply, state, modules, variables, outputs, workspaces, and OpenTofu equivalents for infrastructure as code in 2026.
Ollama Cheat Sheet: Local LLMs, Models, API & Integration (2026)
Complete Ollama reference — pull and run local LLMs, API endpoints, Python/JS integration, multimodal models, model management, and GPU setup in 2026.
Homebrew Cheat Sheet: Every Command macOS Devs Need
Complete Homebrew reference for macOS and Linux — install, update, cask, services, Brewfile, troubleshooting, and pinning versions with working commands.
mise Cheat Sheet: Unified Runtime & Tool Manager (2026)
Complete mise reference — install and switch Node, Python, Rust, Go versions, manage tools, activate via shell, Docker, and CI/CD with working commands.
GitHub Actions Cheat Sheet: Workflows, Jobs & Recipes
Complete GitHub Actions reference — triggers, jobs, secrets, matrix builds, caching, artifacts, and real-world recipes for CI/CD pipelines in 2026.
Cursor AI Editor Cheat Sheet: Features, Shortcuts & Workflows
Complete Cursor reference — composer, context menus, rules for AI, Tab autocomplete, debugger integration, and workflows for pair programming in 2026.
FFmpeg Cheat Sheet: Convert, Compress & Edit Video
Task-first FFmpeg reference — convert formats, compress for web, trim clips, extract audio, create GIFs, and batch-process video with working commands.
Figma Shortcuts Cheat Sheet: Design, Dev Mode & Proto
Every Figma keyboard shortcut for Mac and Windows — design tools, Auto Layout, components, prototyping, Dev Mode handoff, and vector editing in one place.
Next.js App Router Cheat Sheet (Next.js 15, 2026)
Complete Next.js App Router reference — file conventions, Server vs Client Components, data fetching, Server Actions, metadata, and Pages Router migration table.
Claude Code + Ollama: Free Local AI Coding Setup (2026)
Run Claude Code with a local Ollama model instead of Anthropic's API. Step-by-step setup, recommended models, env vars, and troubleshooting.
TOON Format for LLMs: The Token-Efficient Alternative to JSON
A complete guide to Token-Oriented Object Notation — why JSON wastes tokens, how TOON fixes it, real-world examples, benchmarks, and practical implementation in Python and TypeScript.
Micro Editor: The Modern Terminal Editor for Everyone
Get started with Micro — a modern terminal editor with mouse support, syntax highlighting, and familiar shortcuts. Easier than vi, more powerful than nano.
Master Your Workflow: Anatomy of the .claude Folder
Complete deep-dive into Claude Code's control center. Master CLAUDE.md, rules, skills, agents, settings.json, and the global ~/.claude/ directory with step-by-step tutorials and framework-agnostic examples.
OpenClaw Alternatives 2026: Stop Risking Your Production Credentials
Compare 20+ OpenClaw alternatives including NanoClaw, ZeroClaw, and Claude Code. Find the right AI agent based on security, memory, and build speed.
How to Exit Emacs: Save, Quit, and Force Close
Complete guide to exiting GNU Emacs — save changes, quit without saving, force quit, cancel operations, and handle common stuck scenarios.
How to Exit Nano: Save, Quit, and Force Close
Complete guide to exiting Nano editor — save changes, quit without saving, force quit, and handle common stuck scenarios with clear examples.
How to Exit vi and Vim: Save, Quit, and Force Close
Complete guide to exiting vi/vim — save changes, quit without saving, force quit, and handle common stuck scenarios with clear examples.
TypeScript Utility Types: Pick, Omit, Partial & Deep Dive
Master TypeScript's built-in utility types like Pick, Omit, and Partial. Learn real production patterns for Required, Record, and function-derived types.
Python Type Hints: A Practical Guide for Real Codebases
Use Python type hints effectively with annotations, generics, and Pydantic. Learn to avoid common production gotchas and master tools like mypy and pyright.
Building a Design System: Tokens, Components & Docs
Learn how to build a scalable design system using design tokens, component API patterns, and effective documentation strategies for modern frontend teams.
CSS Grid vs Flexbox: When to Use Which
A practical guide to choosing between CSS Grid and Flexbox — with real layout examples, decision rules, common mistakes, and browser support notes for 2026.
How to Install and Use nvm (Node Version Manager)
Install nvm on macOS, Linux, and WSL, manage multiple Node.js versions, set defaults, and use .nvmrc for per-project version pinning.
11 VS Code Alternatives Worth Trying in 2026
Discover top VS Code alternatives for 2026. Explore AI-native editors like Cursor and Windsurf, high-performance picks like Zed, and privacy-focused VSCodium.
How to Use Gemma 4 with Claude Code via Ollama (April 2026)
Set up Gemma 4 locally with Ollama and wire it into Claude Code. Learn correct env vars, model tags, and context window config for April 2026.
Zsh + Oh My Zsh: The Ultimate Terminal Setup Guide
Transform your terminal with Zsh and Oh My Zsh — themes, plugins, aliases, and productivity hacks. From boring bash to powerful command line.
TypeScript Generics: Advanced Real-World Design Patterns
Master TypeScript generics with practical examples. Learn constraints, conditional types, mapped types, and advanced patterns for robust production code.
How to Audit What Data Your Apps Are Sending
Learn to audit app network traffic on macOS, Linux, and mobile. Use mitmproxy, Wireshark, and Charles Proxy to see exactly what data your apps are sending.
SSH Config & Aliases: The Developer's Connection Kit
Master SSH configuration — host aliases, jump hosts, key management, port forwarding, and secure connections. Save time with ~/.ssh/config automation.
Git Rebase vs Merge: When to Use Each (With Visual Guide)
Master Git rebase and merge — understand when to use each, avoid common pitfalls, and keep your Git history clean. Visual explanations and practical workflows.
Docker Compose Cheat Sheet: Services, Volumes & Production
A complete Docker Compose guide covering service definitions, volumes, networks, and health checks. Includes production-ready templates and CLI commands.
VS Code Shortcuts for Developers: The Complete Cheatsheet
Master VS Code keyboard shortcuts — editing, navigation, debugging, Git integration, and custom keybindings. Work faster with the editor you already use.
How to Use Mailgun SMTP Server for Sending Emails
Setup Mailgun SMTP for transactional emails. Includes domain verification, credential setup, and code examples for PHP, Python, and Node.js applications.
Markdown Cheat Sheet: Syntax, Tables, and Extended Features
Complete Markdown reference — headings, lists, links, images, tables, code blocks, task lists, footnotes, and GitHub Flavored Markdown (GFM) extensions.
Nginx Cheat Sheet: Config, Routing, SSL & Performance (2026)
Complete Nginx reference for server blocks, location matching, proxy_pass, SSL/TLS, gzip, rate limiting, and production-ready config templates.
Qwen Coder Cheatsheet (2026 Edition): Running Local Agents
Master Alibaba's open-weights Qwen Coder models. Essential commands for Ollama integration, local execution, and private agentic workflows.
How to Use Yahoo Mail SMTP Server for Sending Email
Yahoo Mail SMTP settings, App Password setup, and code examples for PHP, Python, and Node.js — configure any email client or app to send through Yahoo in 2026.
Claude Code Cheatsheet: 16 Commands That Do the Heavy Lifting
The top 16 Claude Code slash commands power users rely on, including /init, /plan, /agents, and /loop. Master these commands with real-world coding scenarios.
OpenAI Codex & Agents Cheatsheet (2026 Edition)
Master the OpenAI Agents SDK and Codex API. Essential code snippets for function calling, strict JSON schemas, and reliable code generation.
SQL Cheat Sheet: Queries, Joins, Aggregates & CTEs
The ultimate SQL reference for SELECT syntax, JOINs, subqueries, and window functions. Master CTEs, transactions, and constraints for any relational database.
Gemini CLI & Code Assist Cheatsheet (2026 Edition)
Master Google's Gemini CLI. Essential commands for multi-modal prompts, Google Cloud integration, and context window management.
Claude Code CLI Cheatsheet (2026 Edition)
Master Anthropic's terminal-native agent. Essential commands, context flags, permission hooks, and workflow tricks for the Claude Code CLI.
Intro to Vercel Agent Skills: Replace Messy System Prompts
Explore Vercel's Agent Skills ecosystem. Replace messy, copy-pasted system prompts with structured, version-controlled Markdown files for better AI agents.
How to Use SendGrid SMTP Server for Sending Email
SendGrid SMTP settings, API key setup, and code examples for PHP, Python, and Node.js — send transactional email through Twilio SendGrid in 2026.
How to Use Zoho Mail SMTP Server for Sending Email
Zoho Mail SMTP settings for free and paid plans — server address, ports, app-specific password setup, and PHP, Python, and Node.js code examples for 2026.
Vibe Coding Explained: What It Is and How to Actually Ship
Vibe coding is how most prototypes get built in 2026. Here's what it actually is, where it breaks, and the 5-phase framework that gets things shipped.
Cursor vs Claude Code in 2026: Which One Should You Use?
Cursor and Claude Code are the two dominant AI coding tools in 2026. Here is the honest comparison of which fits your workflow.
Context Window Full? 9 Tricks to Get More Out of Every AI Session
Running into AI context limits? Use these 9 practical tricks to stay under the limit and keep your AI accurate and responsive during long development sessions.
MCP vs Function Calling: What's the Actual Difference?
MCP and function calling both let AI models use tools. But they work very differently. Here's the comparison.
How to Use Gmail SMTP Server for Sending Email
Gmail SMTP settings, ports, and App Password setup — configure any app, script, or email client to send mail through Gmail in 2026.
jq Cheat Sheet: JSON Filtering, Transformation & CLI Syntax (2026)
Complete jq reference covering JSON formatting, property extraction, array slicing, object construction, conditional filtering, and slurp mode.
Python 3 Cheat Sheet: Syntax, Data Structures & Best Practices (2026)
Complete Python 3 reference covering primitives, lists, dicts, sets, control flow, functions, classes, File I/O, exceptions, and standard libraries.
How to Install Docker on Ubuntu, macOS and Windows
Step-by-step guide to installing Docker Desktop or Engine on Ubuntu, macOS, and Windows. Learn post-install setup and how to run your first container.
Git Cheat Sheet: Every Command You Actually Need (2026)
Complete modern Git reference covering configuration, staging, switching branches, worktrees, interactive rebasing, stashing, and undoing mistakes.
cURL Command-Line Cheat Sheet: HTTP Requests & API Testing (2026)
Complete cURL reference covering GET/POST requests, custom headers, authentication, file downloads, SSL debugging, and HTTP/3 testing.
Tmux Cheat Sheet: Sessions, Panes, Windows & Config (2026)
Complete Tmux reference covering session management, window switching, pane splits, TPM plugin manager, and modern .tmux.conf configurations.
Docker & Docker Compose Cheat Sheet: Images, Containers & CLI (2026)
Complete Docker reference covering Dockerfile syntax, container management, volume persistence, networking, Compose V2, and multi-stage builds.
Linux & Bash Cheat Sheet: Terminal Commands & Scripting (2026)
Complete Linux & Bash reference covering navigation, file manipulation, permissions, processes, networking, cron jobs, SSH, pipes, and shell scripting.
How to Set Up SSH Keys for GitHub (All Platforms)
Generate SSH keys for GitHub on Ubuntu, macOS, and Windows. Learn to add keys to your account, manage multiple profiles, and troubleshoot connection issues.
How to Write a Production Dockerfile for Node.js
Build small, fast, production-ready Docker images for Node.js — layer caching, multi-stage builds, non-root user, health checks, and .dockerignore explained.
Run PostgreSQL Locally with Docker in Under 2 Minutes
Learn to run PostgreSQL locally using Docker. Includes persistent volumes, docker-compose setup, GUI client access, and essential dump or restore commands.
How to Set Up a .env File and Stop Leaking Secrets
Learn how to set up .env files in Node.js, Python, and Docker. Avoid common mistakes that expose API keys and manage your secrets safely in production.
How to Install Python on Ubuntu, macOS and Windows
Learn how to install Python 3 on Ubuntu, macOS, and Windows using pyenv and Homebrew. Includes setup for pip, virtual environments, and version switching.
How to Install VS Code on Ubuntu, macOS and Windows
Install Visual Studio Code on any OS using apt, Snap, Homebrew, or winget — with the essential extensions every developer should add first.
Python Virtual Environments: venv, uv, and When to Use Each
Keep Python projects isolated with virtual environments. Learn how to set up venv and uv, manage dependencies, and choose the right tool for your 2026 workflow.
How to Install Git on Ubuntu, macOS and Windows
Install Git on any operating system — apt, Homebrew, or the official installer — plus first-time configuration, SSH setup, and verifying your install.
How to Install Node.js on Ubuntu, macOS and Windows
Step-by-step guide to installing Node.js on Ubuntu, macOS, and Windows. Learn to use nvm and Homebrew for easy version switching and SDK management.
Vim Cheat Sheet: Modes, Navigation, Editing & Config (2026)
Complete Vim & Neovim reference covering modal editing, navigation, search-replace, text objects, split panes, tabs, marks, macros, and starter configs.
Git Worktree Guide: Work on Multiple Branches Simultaneously
Stop stashing mid-feature for hotfixes. Learn how to use Git worktree to check out multiple branches into separate folders with real-world workflow examples.
How to Debug a Slow SQL Query in PostgreSQL
Step-by-step: find slow queries with pg_stat_statements, read EXPLAIN ANALYZE output, identify missing indexes, fix N+1 queries, and diagnose lock contention.
SSH & GPG Cheat Sheet: Keys, Tunnels & Signed Commits
Complete SSH and GPG reference — key generation, ssh-agent, config file aliases, port forwarding, database tunneling, GPG signing, and signed git commits.
TypeScript Cheat Sheet: Types, Generics & Utilities
The essential TypeScript reference for primitive types, generics, and utility types. Learn type guards, mapped types, and optimal tsconfig configurations.
PostgreSQL Cheat Sheet: SQL, Indexes, EXPLAIN & psql
Complete PostgreSQL reference — psql commands, CRUD queries, joins, indexes, EXPLAIN ANALYZE, CTEs, window functions, JSONB operators, and admin queries.
Regex Cheat Sheet: Patterns, Groups & Real-World Examples
Master regular expressions with this guide to anchors, groups, lookaheads, and quantifiers. Includes real-world patterns for emails, URLs, and passwords.
OpenAI API Cheat Sheet: GPT-4o, Tools & Assistants
Master the OpenAI API with this guide to GPT-4o, function calling, structured outputs, and Assistants. Includes DALL-E 3, Whisper, and embedding examples.
Gemini API Cheat Sheet: 2.5 Pro, Vision & Tools
Master Google Gemini API for 2.5 Pro and Flash models. Guide to vision, JSON output, function calling, Search grounding, and the Gemini CLI tool.
Tailwind CSS v4 Cheat Sheet: Layout, Flex & Grid
Complete Tailwind CSS v4 reference for layout, spacing, and typography. Master flexbox, grid, responsive design, and dark mode with this essential guide.
How to Set Up WSL2 for Windows Developers
WSL2 setup for Windows developers. Learn how to install Linux on Windows, configure Docker and VS Code, and optimize performance for a seamless experience.
Claude API Cheat Sheet: SDK, CLI, MCP & Prompting
Complete Claude reference — Anthropic API, model IDs, Messages API params, Claude Code CLI commands, MCP setup, tool use, prompt caching, and Batch API.
I Deleted My Code with git reset --hard. git reflog Saved It.
True story: running git reset --hard on the wrong branch wiped a week of work. Here is how git reflog recovered it all.
Claude vs ChatGPT for Developers: An Honest Look
A real developer's honest take on when Claude works better than ChatGPT, when it doesn't, and what actually matters.
Claude vs Gemini 2.5 for Coding: Honest Comparison
Hands-on comparison of Claude Sonnet 4.6 vs Gemini 2.5 Pro for real coding tasks. See which AI model wins for debugging, refactoring, code generation, and repository analysis in daily engineering workflows.
Claude Code vs Cursor: Which One Actually Helps You Ship?
A real comparison of Claude Code and Cursor from a developer who uses both — what each one is actually good at, and where they frustrate you.
How Junior Engineers Should Actually Use Claude Code
Not a shortcut — a safety net. How to use Claude Code to learn faster, catch mistakes early, and ship better code.
I Used Claude to Review My Code for a Week. Here Is What It Caught.
A week-long experiment using Claude as a daily code reviewer on a real Node.js project — bugs found, security issues caught, and what actually changed.
Kubernetes Cheat Sheet: Every kubectl Command You Need (2026)
Complete Kubernetes reference with copy-paste kubectl commands for pods, deployments, services, namespaces, config, scaling, logs, exec, and troubleshooting.
Docker Desktop Was Killing My Laptop. Here Is What Fixed It.
Is Docker Desktop killing your laptop? Fix high RAM usage and fan noise with memory caps, layer caching, and optimized dev images for better performance.
How to Set Up CI/CD with GitHub Actions (Complete Guide)
Learn to build CI/CD pipelines with GitHub Actions. Step-by-step guide to testing, building, and deploying apps with secure secret management.
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