Backend
Server-side development, APIs, and database management
PythonINTERMEDIATEFastAPI
Essential FastAPI reference covering routes, request validation, Pydantic models, dependencies, authentication, file uploads, middleware, database integration, and project structure.
TypeScriptINTERMEDIATETypeScript
TypeScript cheat sheet covering types, interfaces, generics, utility types, type guards, and advanced type system features with examples.
PrismaINTERMEDIATEPrisma ORM
Prisma ORM cheat sheet covering schema definition, relations, CRUD queries, migrations, and database management with code examples.
SQLBEGINNERSQL
Comprehensive SQL reference covering SELECT, joins, aggregation, CASE expressions, NULL handling, string/date functions, window functions, DDL, transactions, and more.
PythonINTERMEDIATEDjango
Django cheat sheet covering models, views, templates, ORM queries, URL routing, forms, and deployment patterns with code examples.
GoINTERMEDIATEGo
Go (Golang) cheat sheet covering syntax, goroutines, channels, interfaces, error handling, and concurrency patterns with examples.
PythonINTERMEDIATEPython
Essential Python reference covering syntax, data structures, functions, OOP, comprehensions, type hints, virtual environments, and the standard library.
PHPINTERMEDIATELaravel
Laravel cheat sheet with Eloquent ORM, routing, Blade templates, middleware, authentication, and Artisan commands with code examples.
JavaScriptINTERMEDIATEAsync JavaScript
Async JavaScript cheat sheet covering Promises, async/await, error handling, Promise.all, race conditions, and concurrency patterns.
Node.jsINTERMEDIATENode.js Core Modules
Node.js core modules cheat sheet covering fs, http, path, crypto, streams, events, and process with practical code examples.
RustADVANCEDRust
Comprehensive Rust reference covering ownership, borrowing, structs, enums, traits, generics, error handling, async/await, concurrency, macros, and more.
n8nINTERMEDIATEn8n
n8n workflow automation cheat sheet with nodes, expressions, triggers, code patterns, error handling, and self-hosting deployment tips.
Node.jsINTERMEDIATEExpress.js
Express.js cheat sheet with routing, middleware, request handling, error handling, and REST API patterns with Node.js code examples.
PythonINTERMEDIATEFlask
Flask cheat sheet covering routes, templates, blueprints, request handling, and REST API patterns with Python code examples.
HTTPBEGINNERHTTP Methods
HTTP methods cheat sheet covering GET, POST, PUT, PATCH, DELETE with idempotency rules, request body syntax, and REST API examples.
HonoINTERMEDIATEHono
Hono cheat sheet covering routing, middleware, context API, validation, RPC client, and deployment to Cloudflare Workers and Bun.
SupabaseINTERMEDIATESupabase
Supabase cheat sheet covering PostgreSQL queries, Auth, Storage, Realtime subscriptions, Edge Functions, and client SDK examples.
PostgreSQLADVANCEDPostgreSQL Advanced Features
Advanced PostgreSQL cheat sheet with JSONB operations, window functions, CTEs, indexing strategies, and performance tuning examples.
PHPBEGINNERPHP
PHP 8+ cheat sheet covering modern syntax, types, enums, match expressions, named arguments, and web development best practices.
Node.jsINTERMEDIATEExpress.js REST API
Express REST API cheat sheet covering routing, middleware, database integration, authentication, error handling, and testing patterns.
HTTPBEGINNERHTTP Status Codes
HTTP status codes cheat sheet — complete reference for 1xx through 5xx codes with meanings, use cases, and API response examples.
GraphQLINTERMEDIATEGraphQL
GraphQL cheat sheet with query syntax, mutations, subscriptions, schema types, resolvers, and API design patterns with code examples.
BunINTERMEDIATEBun
Complete reference for Bun — the all-in-one JavaScript/TypeScript runtime, package manager, bundler, and test runner
MySQLADVANCEDMySQL Advanced Features
Advanced MySQL cheat sheet covering query optimization, transactions, stored procedures, JSON functions, and window function examples.
Drizzle ORMINTERMEDIATEDrizzle ORM
Drizzle ORM cheat sheet with schema definition, queries, relations, migrations, and TypeScript-first database management examples.
SvelteINTERMEDIATESvelteKit
SvelteKit cheat sheet with routing, load functions, form actions, server-side rendering, and full-stack patterns with code examples.
RubyINTERMEDIATERuby on Rails
Ruby on Rails cheat sheet with MVC architecture, Active Record, routing, migrations, controllers, and deployment code examples.