Join the #CallforCode 2019 Global Challenge Virtual Hackathon, June 20-21. Learn how to plan & develop a natural disaster preparedness application, & get the chance to win $200K! https://t.co/5TLReTVqbd https://t.co/dHILtaUW8i

Join the #CallforCode 2019 Global Challenge Virtual Hackathon, June 20-21. Learn how to plan & develop a natural disaster preparedness application, & get the chance to win $200K! https://t.co/5TLReTVqbd pic.twitter.com/dHILtaUW8i

— ☁suɐɥ ɟǝoq☁ (@HansB001) June 20, 2019

from Twitter https://twitter.com/HansB001