Dev Propulsion Labs

Resend founder Zeno Rocha reveals how he built an $18M Series A email API company by obsessing over brand, giving away React Email for free, and rejecting the "ship crap fast" mentality. He shares why seeking rejection accelerates sales, how zero-ego hiring beats talent, and why most dev tools fail by hiding behind GitHub stars instead of charging money.Episode notes: https://evilmartians.com/events/podcast-zeno-rocha-resendFollow us on X: https://x.com/dpl_podRecorded at Chroma. Vector, full-text, regex, and metadata search. Develop locally and scale to petabytes in the cloud backed by object storage. Serverless search and retrieval that is fast, cheap, and reliable. https://www.trychroma.comEvil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtoolsLinks:Resend: https://resend.com/Zeno Rocha on X: https://x.com/zenorochaEvil Martians on X: https://x.com/evilmartiansVictoria Melnikova on X: https://x.com/vmelnikova_en

Jeff Huber, Co-founder and CEO of Chroma, shares insights from his decade in applied machine learning. He discusses how small, opinionated teams with low egos create the best developer tools, emphasizing that consensus stifles innovation. Jeff critiques the RAG approach, introduces the concept of context engineering, and outlines Chroma’s strategy of keeping their core open source while monetizing complementary services. He also highlights the importance of design, company culture, and the mission to democratize AI-powered services.

Sarah Wooders, CTO and co-founder of Letta AI, dives into the intriguing world of stateful AI agents. She compares current LLMs to forgetting characters in 'Memento,' emphasizing their lack of memory. Discussing the AI landscape, she suggests 2025 mirrors the early internet's potential. Wooders critiques the distinction between true agents and mere marketing hype, while also stressing the necessity for better standardization in AI protocols. Open-source tools, she argues, are vital for fostering genuine advancements in AI capabilities.

Join us for an incredible conversation with Adam Frankl - author, advisor, investor, and the final boss of development marketing. In this episode, we dive deep into the biggest challenges facing developer tool startups in 2025 and how to overcome them.On the AI boom opportunity:2025 has gotta be the best year ever for starting a developer tool startup because there is so much chaos, and that's what makes this exciting.The #1 mistake founders make:Problem not product. Become an expert on the problem. Talk about the problem. Write about the problem... Too many founders they wanna talk about the product. They want to demo the product... And quite frankly, no one is interested.Why you need to be obsessed:You have to pick a problem that the problem also picks you. It's the type of problem that you just can't sleep at night because you're thinking about it... You know when the problem is the right problem because it seizes a hold of your brain.The social media strategy that works:Your mechanistic goal is you wanna be posting about this problem every day. Because you want to be the authority on this problem. Authority author, it's the same root. To be an authority, you have to write.On enterprise sales in 2025:Budgets are being cleared for AI investments, and this is astonishing... top executives are basically clearing budget line items say we're gonna invest in AI.Why San Francisco matters:The reason you come to Silicon Valley is the best customers are here. And you're not gonna be closing these tech 100 companies if you are in Tokyo or Lisbon.The game-changing AI workflow:Make a recording. Make a transcript... And then use an LLM to anonymize but consolidate transcripts. And that can be extraordinarily powerful.Links:- Adam's book: "Developer Facing Startup" (Amazon #1 bestseller): https://www.amazon.com/Developer-Facing-Startup-market-developer-facing/dp/B0D4KGHQML- Alchemist Accelerator: https://www.alchemistaccelerator.com/- Evil Martians on X: https://x.com/evilmartians- Victoria Melnikova on X: https://x.com/vmelnikova_enEvil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtools#DeveloperTools #StartupMarketing #AI #Enterprise #SanFrancisco #DevTools

Jason Bosco, CEO and co-founder of TypeSense, shares how he and his co-founder built a profitable search engine serving 10 billion searches monthly without taking VC funding. From Dollar Shave Club VP of Engineering to bootstrapped founder, Jason reveals the unconventional path to building sustainable developer tools.Key insights from this episode:"If it is hard for you as a founder to convince someone to pay you, it's never gonna get easier from there." Find what people are willing to pay for early - don't build first and monetize later."We're opinionated and we want search to work out of the box right from the get-go." TypeSense chose simplicity over configurability, targeting 80% of use cases with zero-config search versus Elasticsearch's thousands of parameters."We don't want the gamble on TypeSense the company to end up affecting TypeSense the product." Jason explains why they chose profitability over VC funding to build a multi-generational product without the pressure of 10x returns."Doing dev tools in closed source is like playing it on hard mode." Open source creates better feedback loops with developers, leading to faster product iteration and stronger community adoption.Links:- TypeSense: https://typesense.org/- TypeSense Cloud: https://cloud.typesense.org/- Jason Bosco on X: https://x.com/jasonbosco- Evil Martians on X: https://x.com/evilmartians- Victoria Melnikova on X: https://x.com/vmelnikova_enEvil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtools

Anna Veronika Dorogush, founder and CEO of Recraft, reveals how she built one of the world's leading AI image generation platforms by solving real professional design problems instead of chasing AI hype. Some key insights:"My whole back-end team is medalists and finalists of World Championship in programming." Strong people attract strong people, creating a talent density that enables a small team to compete with giants."We are just focused on producing the best models in image generation space for designers, for professional use cases." While others built general AI image generators, Recraft targeted designers' specific needs: brand consistency, style control, and professional workflows. "That's the major differentiator between ourselves and other AI native tools is we are building our technology from scratch in-house. And that allows us to solve for professional tasks." Training proprietary models in-house allows solving for your users' exact problems (controlling styles, brand colors, fonts)."At the first stage, think investors mostly are evaluating founders and founding teams. After that, investors are evaluating product market fit and retention and later, monetization starts to be very important. We've raised three rounds so far and on every one of those rounds, different things were considered very important." Links:Recraft: https://www.recraft.ai/Anna Veronika on X: https://x.com/avwritingEvil Martians on X: https://x.com/evilmartiansVictoria Melnikova on X: https://x.com/vmelnikova_enEvil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtools

Evil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtoolsLinks:- tambo ai: https://tambo.co/- Michael Magán on X: https://x.com/mrmagan_- Evil Martians on X: https://x.com/evilmartians- Victoria Melnikova on X: https://x.com/vmelnikova_en

José Valim, the creator of Elixir and founder of Dashbit, shares insights from his journey in developing a beloved programming language. He discusses how prioritizing personal curiosity over market trends led to genuine community engagement. Valim emphasizes decentralization in the Elixir ecosystem, enabling diverse innovation. He also highlights the importance of transparent marketing through clear trade-offs. Currently, he's focused on Tidewave, aiming to create intuitive AI tools that enhance web development experiences.

Adam Wenchel has been building AI infrastructure since before it was cool. As CEO and co-founder of Arthur AI, he's spent six years solving the "last mile problem" - getting AI from impressive demos to reliable production systems. In this conversation, we dive deep into why Adam open sources million-dollar tools, how his enterprise experience at Capital One shaped his approach to developer empathy, and his provocative prediction that we'll soon need fewer developers but better "code bot coaches."What we cover:- Why the gap between 90% demo accuracy and 99% production reliability is make-or-break for AI adoption- The strategic decision to open source Arthur Shield and Bench instead of keeping them proprietary- How working inside a 50,000-person company taught him to build better developer tools- Whether AI will eliminate junior developers (and why the answer isn't what you think)- The future of software development: from 50-person teams to 5 expert coaches- What makes the perfect developer tool (hint: simplicity + a sprinkle of cleverness)Adam's journey from acquiring a 5-person startup to Capital One to building Arthur offers rare insights into both enterprise AI deployment and the evolving landscape of developer productivity. If you're building AI tools, selling to enterprises, or wondering how to future-proof your development career, this conversation is packed with actionable wisdom.Links:- Website: https://www.arthur.ai/- GitHub: https://github.com/arthur-ai/arthur-engine- Adam Wenchel on X: https://x.com/apwenchel- Evil Martians on X: https://x.com/evilmartians- Victoria Melnikova on X: https://x.com/vmelnikova_en

In this discussion, Sam Bhagwat, co-founder of Gatsby and CEO of Mastra AI, shares insights on AI tools and developer frameworks. He reflects on his experience with YC and identifies gaps in the AI landscape that his TypeScript framework addresses. Sam emphasizes the importance of community and iterative development in tech, along with the philosophical angles of licensing. He also touches on the concept of vibe coding, balancing creativity with technical precision, inviting developers to engage with Mastra as they navigate the evolving AI ecosystem.