./bin/setup

Regardless of programming language or project type, a nice pattern for working on a project is:

git clone git@github.com:organization/project.git
cd project
./bin/setup

Regardless of the bin/setup file's contents, a developer should be able to clone the project and run one command to start contributing.

Example:

#!/bin/sh
# Set up Rails app after cloning codebase.
set -ex

# Install Ruby dependencies
gem install bundler --conservative
bundle check || bundle install

# Install JavaScript dependencies
bin/yarn

# Set up database
bin/rails db:setup