
devtools.fm: Developer Tools, Open Source, Software Development
By Andrew Lisowski, Justin Bennett
We love talking to the creators front-end frameworks (React, Solid, Svelte, Vue, Angular, etc), JavaScript and TypeScript runtimes (Node, Deno, Bun), Languages (Unison, Elixor, Rust, Zig), web tech (WASM, Web Containers, WebGPU, WebGL), database providers (Turso, Planetscale, Supabase, EdgeDB), and platforms (SST, AWS, Vercel, Netlify, Fly.io).


Bobby Grayson - Deciduous
This week we're joined by Bobby Grayson, a longtime Elixir developer and the creator of Deciduous, a decision graph that gives LLMs a living memory.Deciduous stores goals, options, and outcomes in a SQLite-backed graph that agents like Claude Code can query as they work, so they remember why decisions were made instead of repeating past mistakes.We talk about how it slots invisibly into an agent workflow, how teams share decision graphs, the surprising authors using it to organize their books, and where coding is headed in the next five years.
Scott Lanoue - CoMail
This week we're joined by Scott Lanoue, the creator of CoMail, a cooperative email service built on the AT Protocol.Getting a self-hosted mail server to actually land in the inbox is a months-long slog of warming IPs and building domain reputation, so CoMail pools that reputation across everyone sending through a shared relay.
We talk about how atproto identity lets CoMail vend out trust instead of spam scores, what it means to store your mail in your own PDS with spaces, and why a co-op might be a better shape than a startup for a protocol with no moats.

Scott Lanoue - CoMail
This week we're joined by Scott Lanoue, the creator of CoMail, a cooperative email service built on the AT Protocol.Getting a self-hosted mail server to actually land in the inbox is a months-long slog of warming IPs and building domain reputation, so CoMail pools that reputation across everyone sending through a shared relay.
We talk about how atproto identity lets CoMail vend out trust instead of spam scores, what it means to store your mail in your own PDS with spaces, and why a co-op might be a better shape than a startup for a protocol with no moats.

Jacob Miller - DiffUI
This week we're joined by Jacob Miller, founder of DiffUI, an AI-driven UI design tool. DiffUi uses diffusion models to generate UI designs, and then uses a large language model to convert the designs to code. Jacob is a design systems expert and has a lot of experience with design systems, and that's baked right into the product.
Jacob Beckerman - Macro
This week we're joined by Jacob Beckerman, the founder and CEO of Macro. Macro is a tool to cut through the noise. It's a workspace built for engineers. And it's one place for all your emails, your tasks, your chat, and your documents. We talk about the creation of Macro, and the future of the company.
- Macro: https://macro.com
- Docs: https://docs.macro.com
- GitHub: https://github.com/jbecke
- X: https://x.com/j_becke
- LinkedIn: https://linkedin.com/in/jbecke

Jacob Beckerman - Macro
This week we're joined by Jacob Beckerman, the founder and CEO of Macro. Macro is a tool to cut through the noise. It's a workspace built for engineers. And it's one place for all your emails, your tasks, your chat, and your documents. We talk about the creation of Macro, and the future of the company.
- Macro: https://macro.com
- Docs: https://docs.macro.com
- GitHub: https://github.com/jbecke
- X: https://x.com/j_becke
- LinkedIn: https://linkedin.com/in/jbecke

Rita Kozlov and Steve Faulkner - Cloudflare
This week we're joined by Rita Kozlov and Steve Faulkner, the co-founders of Cloudflare. The big news of the day is that Cloudflare has acquired Vite. This is a big deal for the JavaScript ecosystem and for the future of developer tools. We talk about the acquisition and what it means for Cloudflare and project.
Rita Kozlov and Steve Faulkner - Cloudflare
This week we're joined by Rita Kozlov and Steve Faulkner, the co-founders of Cloudflare. The big news of the day is that Cloudflare has acquired Vite. This is a big deal for the JavaScript ecosystem and for the future of developer tools. We talk about the acquisition and what it means for Cloudflare and project.

Jeff Dickey - Mise, HK, Fnox, and Aube
This week we're joined by Jeff Dickey, the creator of HK, Fnox, Aube, and Mise.We talk about the creation of these tools and what led him to work on them full time with his new company, en.dev.After that we dive into the future of these tools and what's next for Jeff.
Jeff Dickey - Mise, HK, Fnox, and Aube
This week we're joined by Jeff Dickey, the creator of HK, Fnox, Aube, and Mise.We talk about the creation of these tools and what led him to work on them full time with his new company, en.dev.After that we dive into the future of these tools and what's next for Jeff.
Sam Goodwin - Alchemy
This week we're joined by Sam Goodwin, the creator of Alchemy. Alchemy is a tool that allows you to create and manage your infrastructure as code. The current state of the art is built on all the tech debt of the past 10 years, Alchemy is a new approach to infrastructure as code that is more aligned with the modern web.

Sam Goodwin - Alchemy
This week we're joined by Sam Goodwin, the creator of Alchemy. Alchemy is a tool that allows you to create and manage your infrastructure as code. The current state of the art is built on all the tech debt of the past 10 years, Alchemy is a new approach to infrastructure as code that is more aligned with the modern web.
Elio Struyf - Front Matter CMS, Demo Time
This week we're joined by Elio Struyf, the creator of Front Matter CMS and Demo Time.We talk about the origins of Front Matter CMS, the challenges of building a CMS, and the future of CMSs.We also dive into Demo Time, and how it can be used to create perfect demos for talks and presentations.
- GitHub: github.com/estruyf
- Website: eliostruyf.com
- Bluesky: @eliostruyf.com

Elio Struyf - Front Matter CMS, Demo Time
This week we're joined by Elio Struyf, the creator of Front Matter CMS and Demo Time.We talk about the origins of Front Matter CMS, the challenges of building a CMS, and the future of CMSs.We also dive into Demo Time, and how it can be used to create perfect demos for talks and presentations.
- GitHub: github.com/estruyf
- Website: eliostruyf.com
- Bluesky: @eliostruyf.com

Alem Tuzlak - Tanstack Dev Tools and Tanstack AI
This week we're joined by Alem Tuzlak, the creator of Tanstack Dev Tools and maintainer of Tanstack AI. We talk about the creation of Tanstack Dev Tools and what led him to work on it. After that we dive into Tanstack AI and how it differs from other AI libraries.
- GitHub https://github.com/AlemTuzlak
- Bluesky https://bsky.app/profile/alem.forge42.dev
- LinkedIn https://www.linkedin.com/in/alem-tuzlak/
- YouTube https://www.youtube.com/@alemtuzlak
- TanStack AI https://tanstack.com/ai/latest
- TanStack Devtools https://tanstack.com/devtools/latest

Paolo Ricciuti - Svelte, TMCP
This week we're joined by Paolo Ricciuti, a Svelte maintainer and the creator of TMCP.We talk about his journey into the world of software development, his work on Svelte, and his new project TMCP.There has been a lot of changes in the Svelte ecosystem since we last talked to Rich, so we're excited to hear about the new features and improvements in Svelte 5!
- Website: https://ricciuti.me
- GitHub: https://github.com/paoloricciuti
- Bluesky: https://bsky.app/profile/paolo.ricciuti.me
- SvelteLab: https://sveltelab.dev
- TMCP: https://github.com/paoloricciuti/tmcp
- sveltekit-search-params: https://github.com/paoloricciuti/sveltekit-search-params
- Speaking: https://ricciuti.me/speaking
- Mainmatter: https://mainmatter.com
Paolo Ricciuti - Svelte, TMCP
This week we're joined by Paolo Ricciuti, a Svelte maintainer and the creator of TMCP. We talk about his journey into the world of software development, his work on Svelte, and his new project TMCP. There has been a lot of changes in the Svelte ecosystem since we last talked to Rich, so we're excited to hear about the new features and improvements in Svelte 5!
- Website: https://ricciuti.me
- GitHub: https://github.com/paoloricciuti
- Bluesky: https://bsky.app/profile/paolo.ricciuti.me
- SvelteLab: https://sveltelab.dev
- TMCP: https://github.com/paoloricciuti/tmcp
- sveltekit-search-params: https://github.com/paoloricciuti/sveltekit-search-params
- Speaking: https://ricciuti.me/speaking
- Mainmatter: https://mainmatter.com

Mark Erikson - Redux, Replay.io
This week we're joined by Mark Erikson, the lead maintainer of Redux and the founder of Replay.io. We talk about his journey into the world of software development, his work on Redux, and all the cool stuff he's been doing at Replay.io.
- https://www.linkedin.com/in/markerikson/
- https://blog.isquaredsoftware.com/hire-me/
- https://bsky.app/profile/acemarke.dev
- https://github.com/markerikson
Mark Erikson - Redux, Replay.io
This week we're joined by Mark Erikson, the lead maintainer of Redux and the founder of Replay.io. We talk about his journey into the world of software development, his work on Redux, and all the cool stuff he's been doing at Replay.io.

Ben Curtis - Honeybadger, Breakwater
This week we're joined by Ben Curtis, the founder and CEO of Honeybadger and creator of Breakwater. Ben has been a pillar of the Ruby community for over 20 years, and has been a driving force behind many of the tools and frameworks that we use today. We talk about his journey into the world of software development, his work on Honeybadger, and his new project Breakwater.
Ben Curtis - Honeybadger, Breakwater
This week we're joined by Ben Curtis, the founder and CEO of Honeybadger and creator of Breakwater. Ben has been a pillar of the Ruby community for over 20 years, and has been a driving force behind many of the tools and frameworks that we use today. We talk about his journey into the world of software development, his work on Honeybadger, and his new project Breakwater.
Jamon Holmgren - Infinite Red, Into the Dawn
This week we're joined by Jamon Holmgren, the founder and CEO of Infinite Red.Infinite Red is a software consultancy that specializes in building React Native apps.We talk about his early days of coding, starting a consultancy, remote culture at Infinite Red, React Native, community and Chain React, and building his new game Into the Dawn.

Jamon Holmgren - Infinite Red, Into the Dawn
This week we're joined by Jamon Holmgren, the founder and CEO of Infinite Red. Infinite Red is a software consultancy that specializes in building React Native apps. We talk about his early days of coding, starting a consultancy, remote culture at Infinite Red, React Native, community and Chain React, and building his new game Into the Dawn.

Joel Griffith - Browserless
This week we're joined by Joel Griffith, the founder and CEO of Browserless. Browserless is a browser automation service that allows you to run headless browsers in the cloud. We talk about the challenges of running headless browsers at scale, the use cases for browser automation, and the future of browser automation. We also discuss the BrowserQL feature, which allows you to query the web using a SQL-like language.
- Website: browserless.io
- Documentation: docs.browserless.io
- GitHub: github.com/browserless/browserless (12.3k stars)
- GitHub (Personal): github.com/joelgriffith
- Twitter/X: @browserless
- LinkedIn: Joel Griffith
Joel Griffith - Browserless
This week we're joined by Joel Griffith, the founder and CEO of Browserless. Browserless is a browser automation service that allows you to run headless browsers in the cloud. We talk about the challenges of running headless browsers at scale, the use cases for browser automation, and the future of browser automation. We also discuss the BrowserQL feature, which allows you to query the web using a SQL-like language.
- Website: browserless.io
- Documentation: docs.browserless.io
- GitHub: github.com/browserless/browserless (12.3k stars)
- GitHub (Personal): github.com/joelgriffith
- Twitter/X: @browserless
- LinkedIn: Joel Griffith

Dana Lawson - Netlify
This week we're joined by Dana Lawson, CTO at Netlify. We talk about her journey from the US Army to leading engineering teams at companies like GitHub, New Relic, and now Netlify. We discuss Netlify's evolution from JAMstack to AI-powered developer tools, including Agent Runners and their MCP server. We also explore the concept of "Agent Experience" (AX) as a new paradigm alongside UX and DX, and how hiring practices are evolving in the age of AI.
- Netlify: https://www.netlify.com/
- Agent Experience Hub: https://www.netlify.com/agent-experience/
- agentexperience.ax: https://agentexperience.ax/
- Agent Runners: https://www.netlify.com/platform/agent-runners/
- Netlify MCP Server: https://docs.netlify.com/build/build-with-ai/netlify-mcp-server/
- Dana on LinkedIn: https://www.linkedin.com/in/dglawson/
- Dana's LeadDev Profile: https://leaddev.com/community/dana-lawson
- Dana's UXDX Profile: https://uxdx.com/profile/dana-lawson/
Dana Lawson - Netlify
This week we're joined by Dana Lawson, CTO at Netlify. We talk about her journey from the US Army to leading engineering teams at companies like GitHub, New Relic, and now Netlify. We discuss Netlify's evolution from JAMstack to AI-powered developer tools, including Agent Runners and their MCP server. We also explore the concept of "Agent Experience" (AX) as a new paradigm alongside UX and DX, and how hiring practices are evolving in the age of AI.
- Netlify: https://www.netlify.com/
- Agent Experience Hub: https://www.netlify.com/agent-experience/
- agentexperience.ax: https://agentexperience.ax/
- Agent Runners: https://www.netlify.com/platform/agent-runners/
- Netlify MCP Server: https://docs.netlify.com/build/build-with-ai/netlify-mcp-server/
- Dana on LinkedIn: https://www.linkedin.com/in/dglawson/
- Dana's LeadDev Profile: https://leaddev.com/community/dana-lawson
- Dana's UXDX Profile: https://uxdx.com/profile/dana-lawson/
Fabian Hiller - Valibot, Standard Schema, Formish
This week we're joined by Fabian Hiller, the creator of Valibot, Standard Schema, and Formish. We talk about the birth of Valibot, the collaboration between all the schema libraries on Standard Schema, and the new Formish library. We also discuss the future of developer tools and AI integration.
- GitHub: https://github.com/fabian-hiller
- Bluesky: https://bsky.app/profile/fabianhiller.com
- LinkedIn: https://www.linkedin.com/in/fabianhiller/
- Valibot — https://valibot.dev/
- Standard Schema — https://standardschema.dev/
- Formisch — https://formisch.dev/

Fabian Hiller - Valibot, Standard Schema, Formisch
This week we're joined by Fabian Hiller, the creator of Valibot, Standard Schema, and Formish. We talk about the birth of Valibot, the collaboration between all the schema libraries on Standard Schema, and the new Formish library. We also discuss the future of developer tools and AI integration.
- GitHub: https://github.com/fabian-hiller
- Bluesky: https://bsky.app/profile/fabianhiller.com
- LinkedIn: https://www.linkedin.com/in/fabianhiller/
- Valibot — https://valibot.dev/
- Standard Schema — https://standardschema.dev/
- Formisch — https://formisch.dev/
Salma Alam-Naylor - Nordcraft
This week we're joined by Salma Alam-Naylor, the Head of Developer Education at Nordcraft. Salma shares her journey from music teacher to developer, her discovery of the developer education space in 2020, and the challenges and opportunities she's faced in her role. We discuss the importance of visual editors in web development, the illusion of complexity in development, and the future of web development. Salma also introduces Nordcraft, a visual web framework that allows you to build websites with a GUI.

Salma Alam-Naylor - Nordcraft
This week we're joined by Salma Alam-Naylor, the Head of Developer Education at Nordcraft. Salma shares her journey from music teacher to developer, her discovery of the developer education space in 2020, and the challenges and opportunities she's faced in her role. We discuss the importance of visual editors in web development, the illusion of complexity in development, and the future of web development. Salma also introduces Nordcraft, a visual web framework that allows you to build websites with a GUI.
Peter van Hardenberg - Ink and Switch, Automerge
This week we're joined by Peter van Hardenberg (PVH), director of the Ink and Switch research lab and co-author of the seminal Local First Software paper.Peter shares the origin story of local-first software, from his realization on a San Francisco train to his work at Heroku and beyond.We dive deep into Automerge, Ink and Switch's local-first sync engine built on CRDTs (Conflict-Free Replicated Data Types), exploring how it enables real-time collaboration while keeping data on your computer.We discuss the technical challenges of building distributed systems, the philosophy behind local-first software, and how projects like Key Hive are pushing the boundaries of decentralized data access.Peter also shares his vision for the future of computing, where software ownership and interoperability become fundamental principles rather than afterthoughts.

Peter van Hardenberg - Ink and Switch, Automerge
This week we're joined by Peter van Hardenberg (PVH), director of the Ink and Switch research lab and co-author of the seminal Local First Software paper.Peter shares the origin story of local-first software, from his realization on a San Francisco train to his work at Heroku and beyond.We dive deep into Automerge, Ink and Switch's local-first sync engine built on CRDTs (Conflict-Free Replicated Data Types), exploring how it enables real-time collaboration while keeping data on your computer.We discuss the technical challenges of building distributed systems, the philosophy behind local-first software, and how projects like Key Hive are pushing the boundaries of decentralized data access.Peter also shares his vision for the future of computing, where software ownership and interoperability become fundamental principles rather than afterthoughts.

Jeppe Reinhold - Storybook Modernization
This week we have Jeppe Reinhold, a core contributor to Storybook working at Chromatic. Jeppe shares how Storybook has evolved from a slow, complex tool to a fast, modern development environment through major architectural changes like Vite integration, ESM migration, and dependency reduction. We talk about the Component Story Format evolution, framework agnosticism challenges, local testing improvements with vitest integration, and how Storybook is integrating with AI and LLMs through MCP servers to help coding agents understand and use component libraries.
Jeppe Reinhold - Storybook Modernization
This week we have Jeppe Reinhold, a core contributor to Storybook working at Chromatic. Jeppe shares how Storybook has evolved from a slow, complex tool to a fast, modern development environment through major architectural changes like Vite integration, ESM migration, and dependency reduction. We talk about the Component Story Format evolution, framework agnosticism challenges, local testing improvements with vitest integration, and how Storybook is integrating with AI and LLMs through MCP servers to help coding agents understand and use component libraries.

Mike Samuel - Temper
Join us as we chat with Mike Samuel, an engineer who was at google for 17 years and built the original version of google calendar. He's now the founder and CEO of Temper, a programming language specifically design for translating logic into other programming languages.

Eric Seidel - Flutter, Shorebird
This week we have Eric Seidel, co-creator of Flutter and founder of Shorebird. Eric shares his journey from building WebKit at Apple and Chrome at Google to creating Flutter, a multi-platform UI framework that compiles to native code. We talk about the technical challenges of browser engines, why the web couldn't deliver high-quality mobile apps, and how Shorebird is solving Flutter's code push problem to enable instant app updates without app store approval.
Eric Seidel - Flutter, Shorebird
This week we have Eric Seidel, co-creator of Flutter and founder of Shorebird. Eric shares his journey from building WebKit at Apple and Chrome at Google to creating Flutter, a multi-platform UI framework that compiles to native code. We talk about the technical challenges of browser engines, why the web couldn't deliver high-quality mobile apps, and how Shorebird is solving Flutter's code push problem to enable instant app updates without app store approval.

Oliver Medhurst - Porffor - JavaScript Ahead of Time Compiler
This week we have Oliver Medhurst, the creator of Porffor. Porffor is a JavaScript ahead of time compiler that compiles JavaScript to WebAssembly. We talk about the technical details of how it works, and the future of JavaScript engines.
Oliver Medhurst - Porffor - JavaScript Ahead of Time Compiler
This week we have Oliver Medhurst, the creator of Porffor. Porffor is a JavaScript ahead of time compiler that compiles JavaScript to WebAssembly. We talk about the technical details of how it works, and the future of JavaScript engines.

Gabriel Nordeborn - Rescript
This week we talk to Gabriel Nordeborn, a core member of the Rescript team. Rescript is a langauge that compiles to JS but has some serious superpowers. Whether it is it's awesome pattern matching, or greate react integartoin there is a lot to love. Come learn about it with us.
https://rescript-lang.org/
https://github.com/zth
https://x.com/___zth___
Gabriel Nordeborn - Rescript
This week we talk to Gabriel Nordeborn, a core member of the Rescript team. Rescript is a langauge that compiles to JS but has some serious superpowers. Whether it is it's awesome pattern matching, or greate react integartoin there is a lot to love. Come learn about it with us.
https://rescript-lang.org/
https://github.com/zth
https://x.com/___zth___

Nathan Flurry - Rivet - The Future of Serverless is Stateful
This week we talk to Nathan Flurry, co-founder of Rivet, a platform for building stateful serverless applications. Rivet started as a platform for building multiplayer games, but has since evolved to be a general purpose computing platform. They're actors are a first class primitive that makes it easy to build stateful serverless applications.
- Rivet GitHub: https://github.com/rivet-gg/rivet
- RivetKit: https://github.com/rivet-gg/rivetkit
- Documentation: https://rivet.gg/docs
- Nathan's Twitter/X: https://x.com/NathanFlurry
- Nathan's GitHub: https://github.com/NathanFlurry
- Y Combinator Profile: https://ycombinator.com/companies/rivet
Nathan Flurry - Rivet - The Future of Serverless is Stateful
This week we talk to Nathan Flurry, co-founder of Rivet, a platform for building stateful serverless applications. Rivet started as a platform for building multiplayer games, but has since evolved to be a general purpose computing platform. They're actors are a first class primitive that makes it easy to build stateful serverless applications.
- Rivet GitHub: https://github.com/rivet-gg/rivet
- RivetKit: https://github.com/rivet-gg/rivetkit
- Documentation: https://rivet.gg/docs
- Nathan's Twitter/X: https://x.com/NathanFlurry
- Nathan's GitHub: https://github.com/NathanFlurry
- Y Combinator Profile: https://ycombinator.com/companies/rivet

Zoltan Kochan - PNPM and the Future of Package Management
This week we talk to Zoltan Kochan, the lead maintainer of PNPM, a package manager for JavaScript. PNPM revolutionized the way we install dependencies in the JavaScript ecosystem with it's speed and focus on DX. Come join us as we talk about the origins of PNPM, the technical details of how it works, and the future of package management.
Zoltan Kochan - PNPM and the Future of Package Management
This week we talk to Zoltan Kochan, the creator of PNPM, a package manager for JavaScript. PNPM revolutionized the way we install dependencies in the JavaScript ecosystem with it's speed and focus on DX. Come join us as we talk about the origins of PNPM, the technical details of how it works, and the future of package management.

Oleg Isonen, Bogdan Chadkin - Webstudio
This week we talk to Oleg Isonen and Bogdan Chadkin, the people behind Webstudio. Webstudio is an open source visual builder for the web, aiming to right the wrongs of the current visual builder landscape for a more collaborative and accessible experience.
Oleg Isonen, Bogdan Chadkin - Webstudio
This week we talk to Oleg Isonen and Bogdan Chadkin, the people behind Webstudio. Webstudio is an open source visual builder for the web, aiming to right the wrongs of the current visual builder landscape for a more collaborative and accessible experience.

François Best
This week we talk to Francois Best, the creator of Nuqs, a library for managing URL state in React. We talk about the origins of Nuqs, the challenges of managing URL state, and the future of the library.
Francois Best - Nuqs and URL State Management
This week we talk to Francois Best, the creator of Nuqs, a library for managing URL state in React. We talk about the origins of Nuqs, the challenges of managing URL state, and the future of the library.