Configuration
Configuration related cheatsheet collection - 4 quick reference guides. Find fast, copy directly. The essential online command reference for developers and SRE.
Fish Shell Cheatsheet - Shell Config
A Fish Shell reference covering its syntax differences from Bash, variables and functions, out-of-the-box autocompletion, aliases, and theme configuration.
Nginx Cheatsheet - Nginx Configuration & Command Reference
An Nginx configuration handbook for backend, DevOps, and frontend-integration engineers, covering nginx -t/-s reload syntax validation and hot reload, location matching priority, proxy_pass reverse proxies, access/error log troubleshooting, and the common causes of 502/504.
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.