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The Manifest.

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

Python Virtual Environments: venv, uv, and When to Use Each
Python 7 min read

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.

Vishnu
Vishnu
How to Install Git on Ubuntu, macOS and Windows
HowTo 4 min read

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.

Vishnu
Vishnu
How to Install Node.js on Ubuntu, macOS and Windows
HowTo 4 min read

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.

Vishnu
Vishnu
Vim Cheat Sheet: Modes, Navigation, Editing & Config
Cheatsheet 8 min read

Vim Cheat Sheet: Modes, Navigation, Editing & Config

Complete Vim reference covering modes, movement, editing commands, search and replace, visual mode, split panes, macros, text objects, and a starter .vimrc.

Vishnu
Vishnu
How to Exit Vim, Vi, and Nano (Step by Step)
HowTo 4 min read

How to Exit Vim, Vi, and Nano (Step by Step)

Stuck in Vim? Here is exactly how to save and exit, quit without saving, and force-quit Vim, Vi, and Nano — with every command you need and why they work.

Vishnu
Vishnu
Git Worktree Guide: Work on Multiple Branches Simultaneously
Git 8 min read

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.

Vishnu
Vishnu
How to Debug a Slow SQL Query in PostgreSQL
HowTo 6 min read

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.

Vishnu
Vishnu
How to Get Your Dart Version from the Command Line
Dart 3 min read

How to Get Your Dart Version from the Command Line

Learn the quick way to check your Dart SDK version on Windows, macOS, or Linux using the `dart --version` command.

Leo
Leo
Unsigned Columns in Laravel Migrations
Laravel 7 min read

Unsigned Columns in Laravel Migrations

Master Laravel 12 migrations with unsigned columns. Learn foreignId(), unsignedBigInteger(), and best practices for foreign key constraints in modern PHP applications.

Jena
Jena
SSH & GPG Cheat Sheet: Keys, Tunnels & Signed Commits
Cheatsheet 7 min read

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.

Vishnu
Vishnu
TypeScript Cheat Sheet: Types, Generics & Utilities
Cheatsheet 8 min read

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.

Vishnu
Vishnu
PostgreSQL Cheat Sheet: SQL, Indexes, EXPLAIN & psql
Cheatsheet 9 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
Regex Cheat Sheet: Patterns, Groups & Real-World Examples
Cheatsheet 5 min read

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.

Vishnu
Vishnu
PHP - LinkedIn Skill Assessments Quizzes with Answers
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
Linux & Bash Cheat Sheet: Commands Every Dev Needs
Cheatsheet 10 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
OpenAI API Cheat Sheet: GPT-4o, Tools & Assistants
Cheatsheet 6 min read

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.

Vishnu
Vishnu
Gemini API Cheat Sheet: 2.5 Pro, Vision & Tools
Cheatsheet 7 min read

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.

Vishnu
Vishnu
Tailwind CSS v4 Cheat Sheet: Layout, Flex & Grid
Cheatsheet 6 min read

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.

Vishnu
Vishnu
How to Set Up WSL2 for Windows Developers
WSL2 7 min read

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.

Vishnu
Vishnu
curl Cheat Sheet: API Testing, Auth & File Uploads
Cheatsheet 7 min read

curl Cheat Sheet: API Testing, Auth & File Uploads

Master curl for API testing. This reference covers GET/POST requests, auth, file uploads, timing breakdowns, and scripting patterns for developers.

Vishnu
Vishnu

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