Config Formats
6 cheatsheets covering env, dotenv, Environment Variables, config, .env and more
JSON, YAML, TOML, INI each have their own syntax traps. This category collects syntax and common snippets for the major config formats — copy while you write. Indentation, quotes and comment markers are the usual YAML/TOML gotchas; glance twice before pasting.
Env Vars Cheatsheet - .env Config & dotenv Usage
An environment-variable reference for Node/Python/frontend developers writing .env and integrating dotenv, covering variable definition, shell and per-language reading, dotenv usage, multi-environment file organization, and security pitfalls such as secret leakage.
.dockerignore Cheatsheet - Docker Build Context Ignore Rules
For developers shipping with Docker and slimming images: explains .dockerignore glob matching, ignoring files and directories, differences from .gitignore, build-context slimming tips and common pitfalls. A correct ignore file sharply shrinks the context sent to the daemon.
YAML Cheatsheet - YAML Syntax Reference
A YAML syntax reference for developers who write Docker Compose, Kubernetes and GitHub Actions configs, covering basic syntax, data types, lists, dicts, multiline strings, anchors and explicit type tags. Consult section by section while validating indentation and common write errors.
JSON Cheatsheet
A JSON reference for frontend/backend developers who handle API payloads and JSON config, covering data types, objects, arrays, nesting, common API response patterns, and validation/formatting commands. Consult section by section when a key quotation, comma or nested brace causes an error.
TOML Cheatsheet - TOML Configuration Reference
A TOML reference for developers writing Rust/Cargo, Hugo and Python pyproject.toml config, covering basic types, date-time, strings, arrays and tables, arrays of tables, and a Cargo.toml example. Section-by-section lookup helps avoid type and structure ambiguity.
INI Cheatsheet - INI Configuration Reference
An INI reference for developers working with Windows config, PHP php.ini, Git config and Python configparser files, covering basic syntax, data types, common real-world sections and cross-parser pitfalls.