Filmed at https://2019.dotjs.io on December 5-6, 2019 in Paris. More talks on https://dotconferences.com/talks Data centers produce about 3% of the world's greenhouse gases and this is set to treble in the next 10 years. When building apps, we focus on minimizing costs, time to market, bugs, bundle size, application speed, SEO, but we spend almost no effort trying to minimize the damage our applications are making to the environment. Asim discusses how to build a green sustainable web application with NestJS and Serverless.