 
1. Install Brew & Git
| 1 | # Brew | 
2. Install and Setup MySQL (5.7.19)
| 1 | brew install mysql | 
| 1 | mysql.server start # start mysql server | 
| 1 | CREATE DATABASE redmine CHARACTER SET utf8mb4; | 
3. Download and Setup Redmine (3.4.2)
- redmine-3.4.2.tar.gz (md5: 2980b80e9acc81c01c06adb86eb4f37d) 
- Copy - config/database.yml.exampleto- config/database.ymland edit this file in order to configure your database settings for- productionenvironment.
| 1 | production: | 
4. Run Bundle
| 1 | sudo gem install bundler | 
Trouble Shooting:
(1) mysql2 0.4.9
| 1 | An error occurred while installing mysql2 (0.4.9), and Bundler cannot continue. | 
Solution:
| 1 | xcode-select --install | 
(2) rmagick 2.16.0
| 1 | Fetching rmagick 2.16.0 | 
Solution:
| 1 | brew install imagemagick@6 | 
5. Start Redmine
| 1 | mysql.server restart |