ADR Tools : A command-line tool for working with Architecture Decision Records (ADRs).
how2 : stackoverflow from the terminal.
how2 finds the simplest way to do something in a unix shell. It's like man, but you can query it in natural language.
docopt : Command-line interface description language
PsySH : A runtime developer console, interactive debugger and REPL for PHP. PsySH can be used as an interactive debugger, much like JavaScript's debugger sta...
docopt : Command-line interface description language. docopt helps you define interface for your command-line app, and automatically generate parser for it.
The TLDR pages are a community effort to simplify the beloved man pages with practical examples.