https://www.twilio.com/en-us/blog/archive/2017/marketing-notifications-ruby-sinatra
We demonstrate opt-in marketing messages using SMS and MMSes using Ruby and Sinatra with the Twilio Ruby SDK.
mms marketingruby sinatrasmsnotificationstwilio
https://www.meetup.com/topics/sinatra-ruby-framework/
Find Meetup events so you can do more of what matters to you. Or create your own group and meet people near you who share your interests.
sinatrarubyframeworkgroupsmeetup