Go here: https://gorails.com/setup, choose your OS's version and following instructions to install Ruby, Rails and MySQL.
Download source code and open terminal inside it:
$ cd it3_jungle_boys
First, rename database.yml.example to database.yml
$ mv config/database.yml.example config/database.yml
Then install library:
$ bundle install
Log in to MySQL as the root user:
$ mysql -u root -p
Type the MySQL root password, and then press Enter.
In MySQL tool create new user.(replace 'username' and 'password' to whatever you want):
mysql> GRANT ALL PRIVILEGES ON *.* TO 'username'@'localhost' IDENTIFIED BY 'password';
Type \q to exit the mysql program.
To log in to MySQL as the user you just created, type the following command:
$ mysql -u username -p
Type the user's password, and then press Enter.
To create a database, type the following command.
mysql> CREATE DATABASE itnihongo3_development;
Type \q to exit the mysql program.
Update MySQL username, password to database.yml (line 16, 17)
Create database's tables using migration:
$ rails db:migrate
Seed some data to database:
$ rails db:seed
Finally, run rails server:
$ rails server
Open browser and go to address: "localhost:3000"
Hope you enjoy it!