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The Manifest.

More posts from The Manifest, paginated so the main blog stays lighter and faster to load.

Cheatsheet 8 min read

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.

Vishnu
Vishnu
Cheatsheet 5 min read

Regex Cheat Sheet: Patterns, Groups & Real Examples

Complete regular expressions reference — anchors, character classes, quantifiers, named groups, lookaheads, lookbehinds, and real-world patterns for email, URL, and passwords.

Vishnu
Vishnu
PHP 27 min read

PHP - LinkedIn Skill Assessments Quizzes with Answers

In this article, you will find LinkedIn Assessment, Questions and Answers for PHP.

Darsh Jariwala
Darsh Jariwala
Cheatsheet 9 min read

Linux & Bash Cheat Sheet: Commands Every Dev Needs

Complete Linux and Bash reference — file operations, permissions, processes, grep, find, networking, pipes, cron jobs, SSH, and shell scripting.

Vishnu
Vishnu
Cheatsheet 6 min read

OpenAI API Cheat Sheet: GPT-4o, Tools & Assistants

Complete OpenAI reference — GPT-4o and o-series models, chat completions, function calling, structured output, Assistants API, embeddings, DALL-E 3, and Whisper.

Vishnu
Vishnu
Cheatsheet 6 min read

Gemini API Cheat Sheet: 2.5 Pro, Vision & Grounding

Complete Google Gemini reference — Gemini 2.5 Pro and Flash models, generateContent, streaming, vision, JSON output, function calling, Search grounding, and Gemini CLI.

Vishnu
Vishnu
Cheatsheet 6 min read

Tailwind CSS Cheat Sheet: Every Class You Actually Use

Complete Tailwind CSS v4 reference covering layout, flexbox, grid, spacing, typography, colors, borders, shadows, responsive prefixes, and dark mode — all in one place.

Vishnu
Vishnu
WSL2 7 min read

How to Set Up WSL2 for Windows Developers

WSL2 gives you a real Linux environment on Windows — same terminal, same tools, same commands as a Linux server. Here's how to install it, configure it, and make it actually useful.

Vishnu
Vishnu
Cheatsheet 7 min read

curl Cheat Sheet: API Testing, Auth & File Upload

Complete curl reference — GET and POST requests, headers, authentication, file upload, response inspection, timing breakdown, webhook testing, and scripting patterns.

Vishnu
Vishnu
Cheatsheet 8 min read

Docker Cheat Sheet: Images, Containers, Compose & More

Complete Docker reference — pulling images, running containers, volumes, networks, exec, logs, Docker Compose commands, Dockerfile tips, and disk cleanup.

Vishnu
Vishnu
Cheatsheet 7 min read

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.

Vishnu
Vishnu
AI 4 min read

What You Should Never Paste Into AI Tools at Work

A practical security guide for teams using ChatGPT and other AI tools without accidentally leaking secrets, contracts, or customer data.

Vishnu
Vishnu
AI 4 min read

How to Spot AI-Generated Phishing Before You Click

Generative AI has made phishing emails cleaner and more believable. This guide shows the practical signs that still give them away.

Vishnu
Vishnu
AI 4 min read

Prompt Injection, Explained for Normal People

Prompt injection sounds technical, but the core idea is simple: attackers hide instructions inside content and try to make an AI system obey them.

Vishnu
Vishnu
AI 4 min read

How to Evaluate AI Security Tools Without Buying the Marketing

A practical guide to evaluating AI security products so teams can separate useful controls from vague dashboards and inflated claims.

Vishnu
Vishnu
AI 4 min read

How to Red-Team Your Own Chatbot Before Users Do

A practical starting guide for teams that want to test their chatbot for jailbreaks, prompt injection, unsafe outputs, and data leakage before launch.

Vishnu
Vishnu
AI 4 min read

An AI Security Checklist for Small Teams Shipping Fast

A practical AI security checklist for small teams that want to move quickly without ignoring prompts, data exposure, tools, and basic safeguards.

Vishnu
Vishnu
AI 4 min read

Fight AI with AI: How to Use the Malwarebytes ChatGPT App to Catch Phishing Scams

Scammers now use generative AI to produce convincing phishing messages. Here is how the Malwarebytes app inside ChatGPT can help you investigate delivery scams, bank alerts, and suspicious links faster.

Vishnu
Vishnu
UX 6 min read

UX Laws Every Designer Should Know

This article, list UX laws every designer should know. Including Fitts’s Law, Jacob's Law, Hick's Law, Miller's Law, Parkinson's Law, Tesler's Law and few others.

Aayushi Gajjar
Aayushi Gajjar
AI 8 min read

Manifest: The Perplexity 'Computer' Framework for Market Intelligence

Deconstructing the 8 high-precision prompt sequences that transform Perplexity Computer into an autonomous investment research engine.

Vishnu
Vishnu

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