> Markdown version of [/videos?event=world-congress-2025&page=131](https://www.wearedevelopers.com/videos?event=world-congress-2025&page=131). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Videos 2243 videos · 24305 moments · 1256.1 hours of content ## All videos ### From 0 to 1.000.000: How to build a serverless raffle service for hyperscale Synchronous serverless APIs fail during extreme traffic spikes. Learn how a store-first architecture decoupling API Gateway and SQS effortlessly scales past 100,000 requests per second without upfront provisioning. - **Speakers:** Marco Plaul, Martin Sakowski - **Event:** World Congress 2023 - **Published:** October 23, 2023 - **Duration:** 30:03 - [Watch](https://www.wearedevelopers.com/videos/793-from-0-to-1-000-000-how-to-build-a-serverless-raffle-service-for-hyperscale) ### Bridging the Gap Tired of constant friction between UX designers and frontend engineers? Discover how a unified design system bridged the gap at IONOS, eliminating rework and accelerating deployment. - **Speakers:** Philipp Kremer - **Event:** World Congress 2023 - **Published:** October 23, 2023 - **Duration:** 6:16 - [Watch](https://www.wearedevelopers.com/videos/794-bridging-the-gap) ### Racism fuels users experiences : why you should understand the strength of biased narratives. Why do medical algorithms miss late-stage melanomas on dark skin? Discover how UX and engineering teams can dismantle biased narratives and design profoundly inclusive software. - **Speakers:** Marcy Charollois - **Event:** World Congress 2023 - **Published:** October 23, 2023 - **Duration:** 29:59 - [Watch](https://www.wearedevelopers.com/videos/795-racism-fuels-users-experiences-why-you-should-understand-the-strength-of-biased-narratives) ### tRPC: API schemas are pure overhead API schemas and code-generation pipelines are pure overhead. Discover how tRPC uses native TypeScript inference to deliver instant, end-to-end type safety from your database to your UI. - **Speakers:** Giorgio Boa - **Event:** World Congress 2023 - **Published:** October 23, 2023 - **Duration:** 27:00 - [Watch](https://www.wearedevelopers.com/videos/796-trpc-api-schemas-are-pure-overhead) ### Cloud as the new mainframe: why the cloud hype does not reflect the dev reality Is your shift to the cloud secretly killing your inner dev loop? Learn why remote execution acts like a 1960s mainframe and how local emulation reclaims developer productivity. - **Speakers:** Gerta Sheganaku, Waldemar Hummer - **Event:** World Congress 2023 - **Published:** October 23, 2023 - **Duration:** 23:00 - [Watch](https://www.wearedevelopers.com/videos/797-cloud-as-the-new-mainframe-why-the-cloud-hype-does-not-reflect-the-dev-reality) ### Continuous Documentation for Your Code Clean code cannot document its own business logic. Learn how embedding continuous documentation into your PR process keeps your codebase alive, accessible, and deeply collaborative. - **Speakers:** Anastasiia Tymoshchuk - **Event:** World Congress 2023 - **Published:** October 23, 2023 - **Duration:** 20:19 - [Watch](https://www.wearedevelopers.com/videos/798-continuous-documentation-for-your-code) ### From Bedside Beeps to Interoperable Bytes – Getting your medical devices ready to talk the IEEE 11073 language Are disjointed medical devices creating critical bottlenecks in your operating rooms? Discover how to leverage Python and IEEE 11073 standards to build a secure, interoperable clinical network. - **Speakers:** Richard Bieck - **Event:** WeAreDevelopers LIVE - **Published:** October 20, 2023 - **Duration:** 59:17 - [Watch](https://www.wearedevelopers.com/videos/771-from-bedside-beeps-to-interoperable-bytes-getting-your-medical-devices-ready-to-talk-the-ieee-11073-language) ### Cracking Cholera’s Code: Victorian Insights for Today’s Technologist In 1854, acting on flawed cholera theories resulted in disastrous interventions. Discover how validating assumptions prevents your engineering team from building expensive software that merely digitizes broken processes. - **Speakers:** Simon Copsey - **Event:** WeAreDevelopers LIVE - **Published:** October 20, 2023 - **Duration:** 53:30 - [Watch](https://www.wearedevelopers.com/videos/772-cracking-cholera-s-code-victorian-insights-for-today-s-technologist) ### Techies vs. Suits: Decoding the Distinct Paths to Startup Success in Europe and the US Technical founders often kill their startups by obsessing over pristine architecture instead of customer problems. Stop over-engineering and learn to aggressively validate market demand before writing any code. - **Speakers:** Mali M. Baum, Felix Häusler, Thomas Bachem - **Event:** World Congress 2023 - **Published:** October 15, 2023 - **Duration:** 33:58 - [Watch](https://www.wearedevelopers.com/videos/826-techies-vs-suits-decoding-the-distinct-paths-to-startup-success-in-europe-and-the-us) ### Migrating half a million users to a new payment service provider Faced with a strict 3.5-month deadline, engineers bypassed risky big-bang releases for fine-grained code routing. Discover how they safely migrated half a million payment users using Kotlin. - **Speakers:** Sebastian Hans - **Event:** WeAreDevelopers LIVE - **Published:** October 6, 2023 - **Duration:** 1:57:12 - [Watch](https://www.wearedevelopers.com/videos/730-migrating-half-a-million-users-to-a-new-payment-service-provider) ### A deep dive into ARC the Kubernetes operator to scale self-hosted runners Stop wasting cluster capacity on idle CI/CD pipelines. Discover how the ARC Kubernetes operator securely scales self-hosted GitHub Actions runners to peak demand and down to zero. - **Speakers:** Bassem Dghaidi - **Event:** WeAreDevelopers LIVE - **Published:** October 6, 2023 - **Duration:** 58:19 - [Watch](https://www.wearedevelopers.com/videos/731-a-deep-dive-into-arc-the-kubernetes-operator-to-scale-self-hosted-runners) ### Kubernetes dev is fun, but setup and ops isn't! See a fun PaaS alternative to push any code, ipynbs or even just data! Tired of wrestling with complex Kubernetes operations? Discover a seamless PaaS alternative that lets you skip the configuration and instantly push code, Jupyter notebooks, or raw data. - **Speakers:** Maurice Brinkmann - **Event:** WeAreDevelopers LIVE - **Published:** October 6, 2023 - **Duration:** 56:15 - [Watch](https://www.wearedevelopers.com/videos/732-kubernetes-dev-is-fun-but-setup-and-ops-isn-t-see-a-fun-paas-alternative-to-push-any-code-ipynbs-or-even-just-data) [Next page](https://www.wearedevelopers.com/videos?page=132)