From pow to puma-dev on macOS keeping .dev domains

installation.sh

# Why:
# 1) Chrome 63 (Dec 8) breaks .dev domains by forcing HTTPS: https://ma.ttias.be/chrome-force-dev-domains-https-via-preloaded-hsts/
# 2) Pow is at EOL, superceded by puma-dev (see http://pow.cx/manual, 6 Version History, 0.6.0, Dec 8 2017)

# Uninstall pow
curl get.pow.cx/uninstall.sh | sh

# If you use powder, you can remove it as well
gem uninstall powder

# Go to codebase
cd ~/path/to/codebase

# Install puma itself if you don't already have it
# gem install puma
# or if in Gemfile:
bundle install

# Install puma-dev and configure it correctly for macOS
brew install puma/puma/puma-dev
sudo puma-dev -setup
puma-dev -install

# Link code (assumes you've `cd` into your codebase dir and you want it named the same)
puma-dev link

# If receiving SSL warning on Chrome on macOS Sierra:
# (Source: https://github.com/puma/puma-dev/issues/84)
#
# 1. Open KeyChain Access
# 2. Move puma-dev CA cert from 'login' into System keychain
# 3. Right click and open 'Get Info'
# 4. Under "Trust", set appropriate settings: https://user-images.githubusercontent.com/72493/33744602-a4aec5f0-db77-11e7-842d-fa97b16ee95d.png
# 5. Restart browser