In some of my first emails to this list, I wrote about `just` and `run` files.
Both allow you to write project-specific aliases and commands. For example, instead of running `docker compose exec php phpunit`, you run `just test` or `run test`.
While `just` uses a simple Makefile-like syntax, it requires its own program, so it needs to be installed.
While I have it installed locally, I've had instances where CI pipelines have failed because they can't download and install `just` and not because of an error in my code.
## Here's the thing
A `run` script is a file of Bash functions.
Because it's written in Bash, it runs anywhere without installing additional dependencies.
If a CI pipeline fails, which is less often, it's due to a failure within my code and not because of a download error.