justfile
Installation
SKILL.md
Just Command Runner Skill
just is a command runner (not a build system) that saves and runs project-specific commands
in a file called justfile. It uses make-inspired syntax but is simpler, more portable, and
avoids make's idiosyncrasies like .PHONY, tab sensitivity issues, and implicit rules.
When to Use Just vs Make
| Scenario | Tool |
|---|---|
| Project task automation (build, test, deploy, lint) | just |
| Actual file-based build dependencies (compile .c to .o) | make |
| Cross-platform command runner | just |
| Legacy projects already deep in make | make (or migrate) |