Waldemar Hummer, Co-Founder & CTO of LocalStack, joins Corey on Screaming in the Cloud to discuss how LocalStack changed Corey’s mind on the futility of mocking clouds locally. Waldemar reveals why LocalStack appeals to both enterprise companies and digital nomads, and explains how both see improvements in their cost predictability as a result. Waldemar also discusses how LocalStack is an open-source company first and foremost, and how they’re working with their community to evolve their licensing model. Corey and Waldemar chat about the rising demand for esoteric services, and Waldemar explains how accommodating that has led to an increase of adoption from the big data space. About WaldemarWaldemar is Co-Founder and CTO of LocalStack, where he and his team are building the world-leading platform for local cloud development, based on the hugely popular open source framework with 45k+ stars on Github. Prior to founding LocalStack, Waldemar has held several engineering and management roles at startups as well as large international companies, including Atlassian (Sydney), IBM (New York), and Zurich Insurance. He holds a PhD in Computer Science from TU Vienna.Links Referenced:
LocalStack website: https://localstack.cloud/

LocalStack Slack channel: https://slack.localstack.cloud

LocalStack Discourse forum: https://discuss.localstack.cloud

LocalStack GitHub repository: https://github.com/localstack/localstack

TranscriptAnnouncer: Hello, and welcome to Screaming in the Cloud with your host, Chief Cloud Economist at The Duckbill Group, Corey Quinn. This weekly show features conversations with people doing interesting work in the world of cloud, thoughtful commentary on the state of the technical world, and ridiculous titles for which Corey refuses to apologize. This is Screaming in the Cloud.Corey: Welcome to Screaming in the Cloud. I’m Corey Quinn. Until a bit over a year ago or so, I had a loud and some would say fairly obnoxious opinion around the futility of mocking cloud services locally. This is not to be confused with mocking cloud services on the internet, which is what I do in lieu of having a real personality. And then one day I stopped espousing that opinion, or frankly, any opinion at all. And I’m glad to be able to talk at long last about why that is. My guest today is Waldemar Hummer, CTO and co-founder at LocalStack. Waldemar, it is great to talk to you.Waldemar: Hey, Corey. It’s so great to be on the show. Thank you so much for having me. We’re big fans of what you do at The Duckbill Group and Last Week in AWS. So really, you know, glad to be here with you today and have this conversation.Corey: It is not uncommon for me to have strong opinions that I espouse—politely to be clear; I’ll make fun of companies and not people as a general rule—but sometimes I find that I’ve not seen the full picture and I no longer stand by an opinion I once held. And you’re one of my favorite examples of this because, over the course of a 45-minute call with you and one of your business partners, I went from, “What you’re doing is a hilarious misstep and will never work,” to, “Okay, and do you have room for another investor?” And in the interest of full disclosure, the answer to that was yes, and I became one of your angel investors. It’s not exactly common for me to do that kind of a hard pivot. And I kind of suspect I’m not the only person who currently holds the opinion that I used to hold, so let’s talk a little bit about that. At the very beginning, what is LocalStack and what does it you would say that you folks do?Waldemar: So LocalStack, in a nutshell, is a cloud emulator that runs on your local machine. It’s basically like a sandbox environment where you can develop your applications locally. We have currently a range of around 60, 70 services that we provide, things like Lambda Functions, DynamoDB, SQS, like, all the major AWS services. And to your point, it is indeed a pretty large undertaking to actually implement the clo