just is a handy way to save and run project-specific commands stored in a file called justfile. It's designed as a modern replacement for make, offering significant improvements while avoiding the complexity and quirks of traditional build systems.

Key Features:

Command runner, not a build system – Avoids make's complexity without needing .PHONY recipes
Clear error reporting – Syntax errors are reported with source context for easy debugging
Cross-platform support – Works on Linux, macOS, Windows, and other Unix-like systems with no additional dependencies
Recipe parameters – Accept command-line arguments in your recipes
Static error resolution – Unknown recipes and circular dependencies are caught before execution
.env file loading – Automatically populate environment variables from .env files
Multiple languages – Write recipes in Python, Node.js, or any programming language using shebangs
Recipe dependencies – Recipes can depend on other recipes for organized task management
Shell completion – Available for most popular shells across different platforms
Interactive selection – Pairs with fzf for choosing recipes interactively
Module system – Share task collections across repositories with modules and imports
Flexible invocation – Run just from any subdirectory, not just where the justfile is located