devtools.fm: Developer Tools, Open Source, Software Development

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.
https://comail.at/
https://scottlanoue.com/
https://bsky.app/profile/scottlanoue.com
https://tangled.org/scottlanoue.com/atmosphere-mail

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.
https://x.com/pwnies
https://diffui.ai

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

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.
https://www.cloudflare.com/
https://workers.cloudflare.com/
https://blog.cloudflare.com/
https://x.com/rita3ko

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.
Previous episode: https://www.devtools.fm/episode/129

https://jdx.dev/

https://en.dev/

https://github.com/jdx

https://jdx.dev/posts/2026-04-17-going-full-time-on-open-source/

https://github.com/endevco/aube

https://github.com/jdx/hk

https://github.com/jdx/fnox