In our projects, I had a simple script named do.sh to quickly define and run tasks. I don’t remember why we didn’t use Makefile, but it had similar functionality. It’s just a BASH script: you can define environment variables, add functions and easily run other CLI commands. We wanted to be able to do that without having an extra dependency, so we could tell the developers, “Just download the script and run the command sh do.sh setup.” That’s it! It was much better than writing all the steps and other instructions in the README.md file.