See https://github.com/samvera/hyrax#prerequisites
brew install redis sqlite fits imagemagick ffmpeg
bundle install
bin/rake db:setup
bin/wrap
bin/rails hyrax:default_admin_set:create
bin/rails s
In the Rails console:
admin = Role.create(name: "admin")
admin.users << User.find_by_user_key( "your_admin_users_email@fake.email.org" )
admin.save