The Changelog: Software Development, Open Source

Microsoft finally opens the source of WSL, Paolo Scanferla describes an inherent trade-off in TypeScript’s type system, Alberto Fortin is taking a step back from heavy LLM use while coding, a pseudonymous hacker spent two weeks coding from their Android phone, and NLWeb might become the HTML of the open agentic web. View the newsletter [https://changelog.com/news/145/email] Join the discussion [https://changelog.zulipchat.com/#narrow/stream/455469-news] Changelog++ [https://changelog.com/++] members support our work, get closer to the metal, and make the ads disappear. Join today! Sponsors: * Retool [https://retool.com/changelog] – The low-code platform for developers to build internal tools — Some of the best teams out there trust Retool…Brex, Coinbase, Plaid, Doordash, LegalGenius, Amazon, Allbirds, Peloton, and so many more – the developers at these teams trust Retool as the platform to build their internal tools. Try it free at retool.com/changelog [https://retool.com/changelog] Featuring: * Jerod Santo – GitHub [https://github.com/jerodsanto], LinkedIn [https://www.linkedin.com/in/jerodsanto], Mastodon [https://changelog.social/@jerod], X [https://x.com/jerodsanto]

Welcome back to #define, our game of obscure jargon, fake definitions, and expert tomfoolery. We’ve gathered some awesome friends, new and old, to see who has the best vocabulary and who can trick the everyone else into thinking that they do. Join the discussion [https://changelog.zulipchat.com/#narrow/stream/455613-friends] Changelog++ [https://changelog.com/++] members save 7 minutes on this episode because they made the ads disappear. Join today! Sponsors: * Heroku [https://www.heroku.com/changelogpodcast] – The Next Generation of Heroku “Fir” is coming soon — Fir is built on a foundation of cloud native technologies and open source standards, ensuring portability, interoperability, and a vibrant ecosystem for your applications. Cloud Native for everyone, for the next decade and beyond. * Retool [https://retool.com/changelog] – The low-code platform for developers to build internal tools — Some of the best teams out there trust Retool…Brex, Coinbase, Plaid, Doordash, LegalGenius, Amazon, Allbirds, Peloton, and so many more – the developers at these teams trust Retool as the platform to build their internal tools. Try it free at retool.com/changelog [https://retool.com/changelog] * Outshift by Cisco [https://agntcy.org] – AGNTCY is an open source collective building the Internet of Agents. It’s a collaboration layer where AI agents can communicate, discover each other, and work across frameworks. For developers, this means standardized agent discovery tools, seamless protocols for inter-agent communication, and modular components to compose and scale multi-agent workflows. Featuring: * Angelica Hill – GitHub [https://github.com/angelicahill], LinkedIn [https://www.linkedin.com/in/angelica-h-9ba1a3a5], X [https://x.com/Angelica_Hill] * Matthew Sanabria – Website [https://matthewsanabria.dev], GitHub [https://github.com/sudomateo], LinkedIn [https://www.linkedin.com/in/sudomateo], Mastodon [https://mastodon.online/@sudomateo], X [https://x.com/sudomateo] * John Henry Müller – GitHub [https://github.com/johnhenrymuller], LinkedIn [https://www.linkedin.com/in/johnhenrymuller], Bluesky [https://bsky.app/profile/johnhenrymuller.com], Mastodon [https://mastodon.social/@johnhenrymuller] * Breakmaster Cylinder – Website [https://www.personbproductions.com/], X [https://x.com/brkmstrcylinder] * Jerod Santo – GitHub [https://github.com/jerodsanto], LinkedIn [https://www.linkedin.com/in/jerodsanto], Mastodon [https://changelog.social/@jerod], X [https://x.com/jerodsanto] * Adam Stacoviak – Website [https://adamstacoviak.com/], GitHub [https://github.com/adamstac], LinkedIn [https://www.linkedin.com/in/adamstacoviak], Mastodon [https://changelog.social/@adam], X [https://x.com/adamstac] Show Notes: * He Who Gets Slapped (1924) [https://www.imdb.com/title/tt0014972/] * He Who Gets Changelog Beats (2025) [https://changelog.com/beats] Something missing or broken? PRs welcome! [https://github.com/thechangelog/show-notes/blob/master/friends/changelog--friends-93.md]

Derek Collison — creator of NATS and Co-founder & CEO of Synadia — joins the show to dive into the origins, design, and evolution of NATS, a high-performance, open-source messaging system built for modern cloud-native systems and part of the CNCF. Derek shares the story behind NATS, what makes it unique, and unpacks the recent tensions between Synadia and the CNCF over the future of the project. Join the discussion [https://changelog.zulipchat.com/#narrow/stream/456187-interviews] Changelog++ [https://changelog.com/++] members save 8 minutes on this episode because they made the ads disappear. Join today! Sponsors: * Heroku [https://www.heroku.com/changelogpodcast] – The Next Generation of Heroku “Fir” is coming soon — Fir is built on a foundation of cloud native technologies and open source standards, ensuring portability, interoperability, and a vibrant ecosystem for your applications. Cloud Native for everyone, for the next decade and beyond. * Retool [https://retool.com/changelog] – The low-code platform for developers to build internal tools — Some of the best teams out there trust Retool…Brex, Coinbase, Plaid, Doordash, LegalGenius, Amazon, Allbirds, Peloton, and so many more – the developers at these teams trust Retool as the platform to build their internal tools. Try it free at retool.com/changelog [https://retool.com/changelog] * Outshift by Cisco [https://agntcy.org] – AGNTCY is an open source collective building the Internet of Agents. It’s a collaboration layer where AI agents can communicate, discover each other, and work across frameworks. For developers, this means standardized agent discovery tools, seamless protocols for inter-agent communication, and modular components to compose and scale multi-agent workflows. Featuring: * Derek Collison – GitHub [https://github.com/derekcollison], X [https://x.com/derekcollison] * Adam Stacoviak – Website [https://adamstacoviak.com/], GitHub [https://github.com/adamstac], LinkedIn [https://www.linkedin.com/in/adamstacoviak], Mastodon [https://changelog.social/@adam], X [https://x.com/adamstac] * Jerod Santo – GitHub [https://github.com/jerodsanto], LinkedIn [https://www.linkedin.com/in/jerodsanto], Mastodon [https://changelog.social/@jerod], X [https://x.com/jerodsanto] Show Notes: * NATS.io [https://nats.io] * Protecting NATS and the integrity of open source: CNCF’s commitment to the community [https://www.cncf.io/blog/2025/05/01/protecting-nats-and-the-integrity-of-open-source-cncfs-commitment-to-the-community/] * CNCF and Synadia Align on Securing the Future of the NATS.io Project [https://www.cncf.io/announcements/2025/05/01/cncf-and-synadia-align-on-securing-the-future-of-the-nats-io-project/] * Synadia and the NATS project [https://www.synadia.com/blog/nats-server-next-steps] Something missing or broken? PRs welcome! [https://github.com/thechangelog/show-notes/blob/master/podcast/the-changelog-641.md]

Rasmus Holm takes a critical look at MCP, Stefan Judis shares a new term he learned from Scott Hanselman, Raf beautifully describes the curse of knowing how, Void is an open source Cursor alternative & React Jam is back for its 6th online game jam. View the newsletter [https://changelog.com/news/144/email] Join the discussion [https://changelog.zulipchat.com/#narrow/stream/455469-news] Changelog++ [https://changelog.com/++] members support our work, get closer to the metal, and make the ads disappear. Join today! Sponsors: * Heroku [https://www.heroku.com/changelogpodcast] – The Next Generation of Heroku “Fir” is coming soon — Fir is built on a foundation of cloud native technologies and open source standards, ensuring portability, interoperability, and a vibrant ecosystem for your applications. Cloud Native for everyone, for the next decade and beyond. Featuring: * Jerod Santo – GitHub [https://github.com/jerodsanto], LinkedIn [https://www.linkedin.com/in/jerodsanto], Mastodon [https://changelog.social/@jerod], X [https://x.com/jerodsanto]

Kaizen 19 [https://github.com/thechangelog/changelog.com/discussions/544] has arrived! Gerhard has been laser-focused on making Jerod’s pipe dream a reality by putting all of his efforts into Pipely [https://github.com/thechangelog/pipely]. Has it been a big waste of time or has this epic side quest morphed into a main quest?! Join the discussion [https://changelog.zulipchat.com/#narrow/stream/455613-friends] Changelog++ [https://changelog.com/++] members save 9 minutes on this episode because they made the ads disappear. Join today! Sponsors: * Depot [https://depot.dev] – 10x faster builds? Yes please. Build faster. Waste less time. Accelerate Docker image builds, and GitHub Actions workflows. Easily integrate with your existing CI provider and dev workflows to save hours of build time. * Heroku [https://www.heroku.com/changelogpodcast] – The Next Generation of Heroku “Fir” is coming soon — Fir is built on a foundation of cloud native technologies and open source standards, ensuring portability, interoperability, and a vibrant ecosystem for your applications. Cloud Native for everyone, for the next decade and beyond. * Retool [https://retool.com/changelog] – The low-code platform for developers to build internal tools — Some of the best teams out there trust Retool…Brex, Coinbase, Plaid, Doordash, LegalGenius, Amazon, Allbirds, Peloton, and so many more – the developers at these teams trust Retool as the platform to build their internal tools. Try it free at retool.com/changelog [https://retool.com/changelog] Featuring: * Gerhard Lazu – Website [https://gerhard.io], GitHub [https://github.com/gerhard], LinkedIn [https://www.linkedin.com/in/gerhardlazu], X [https://x.com/gerhardlazu] * Jerod Santo – GitHub [https://github.com/jerodsanto], LinkedIn [https://www.linkedin.com/in/jerodsanto], Mastodon [https://changelog.social/@jerod], X [https://x.com/jerodsanto] * Adam Stacoviak – Website [https://adamstacoviak.com/], GitHub [https://github.com/adamstac], LinkedIn [https://www.linkedin.com/in/adamstacoviak], Mastodon [https://changelog.social/@adam], X [https://x.com/adamstac] Show Notes: * Discussion #544: 🎧 Kaizen 19 [https://github.com/thechangelog/changelog.com/discussions/544] * httpstat: curl statistics made simple [https://github.com/reorx/httpstat] * Making DNSimple with Anthony Eden [https://changelog.com/podcast/637] * Our Slack is dead. Long live Zulip! [https://changelog.com/posts/our-slack-is-dead-long-live-zulip] * flyradar: Manage your Fly.io resources in style [https://github.com/furkankly/flyradar] * oha: HTTP load generator, inspired by rakyll/hey [https://github.com/hatoo/oha] * Testing Varnish with varnishtest [https://www.varnish-software.com/developers/tutorials/testing-varnish-varnishtest/] * Hurl - Run and Test HTTP Requests [https://hurl.dev/] * Varnish Software Enterprise [https://www.varnish-software.com/products/varnish-enterprise/] Something missing or broken? PRs welcome! [https://github.com/thechangelog/show-notes/blob/master/friends/changelog--friends-92.md]