Dev Propulsion Labs

Evil Martians

Dev Propulsion Labs is a podcast about the business of developer tools. Hosts from the Evil Martians team interview prominent dev tools founders with the goal of sharing knowledge in the maturing developer tool and commercial open source industry.

  1. Jason Bosco on building a profitable search engine serving 10 billion searches without VC funding

    AUG 19

    Jason Bosco on building a profitable search engine serving 10 billion searches without VC funding

    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_en Evil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtools

    37 min
  2. Anna Veronika Dorogush on why having high-density talent on the team is crucial for Recraft

    JUL 31

    Anna Veronika Dorogush on why having high-density talent on the team is crucial for Recraft

    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/avwriting Evil Martians on X: https://x.com/evilmartians Victoria Melnikova on X: https://x.com/vmelnikova_en Evil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtools

    40 min
  3. José Valim on feeding desire to learn, healthy Elixir ecosystem and the future of AI tooling

    JUN 30

    José Valim on feeding desire to learn, healthy Elixir ecosystem and the future of AI tooling

    José Valim, creator of Elixir and founder of Dashbit, shares how he built one of the most loved programming languages by following curiosity over market trends. Key insights for devtool founders: - Build for yourself first - José's "selfish" approach of creating tools he actually wants to use led to authentic adoption and marketing. When you can explain genuine technical trade-offs instead of chasing trends, developers listen. - Decentralize early - Without Google/Apple-level resources, Elixir succeeded by empowering the community to own different domains (web, ML, embedded) rather than centralizing control. - Make pivotal technical bets - Targeting the battle-tested Erlang VM and enabling the Phoenix framework were key architectural decisions that paid off long-term. - Marketing = explaining trade-offs - Skip the sales pitch. Show developers exactly what they get and what they give up. José's rule: "If all we have is opinions, I prefer mine." - Enable ecosystem growth - Dashbit's consulting reveals adoption friction points, which feed back into language improvements and new open-source projects. Current focus: José is building Tidewave, exploring higher-level AI development tools that understand web frameworks, not just code. Companies using Elixir: Discord, Remote, Supabase, Fly.io, Apple, Toyota, BBC, PepsiCo, Mozilla Evil Martians is the go-to agency for early-stage developer tools startups: https://evilmartians.com/devtools Links: - Elixir: https://elixir-lang.org/ - Tidewave: https://tidewave.ai/ - Livebook: https://livebook.dev/ - José Valim on X: https://x.com/josevalim - Evil Martians on X: https://x.com/evilmartians - Victoria Melnikova on X: https://x.com/vmelnikova_en

    37 min
  4. Adam Wenchel, CEO at Arthur AI, on building AI guardrails, the last mile problem, and coaching code bots

    JUN 24

    Adam Wenchel, CEO at Arthur AI, on building AI guardrails, the last mile problem, and coaching code bots

    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

    24 min
  5. Sam Bhagwat on Gatsby and Mastra, YC and tapping into your inner child

    MAY 20

    Sam Bhagwat on Gatsby and Mastra, YC and tapping into your inner child

    In this episode of Dev Propulsion Labs, we sit down with Sam Bhagwat, the dev tools visionary who co-founded Gatsby and is now transforming AI development with Mastra - the TypeScript framework that's rapidly gaining adoption among serious AI developers. After selling Gatsby to Netlify, Sam identified a critical gap in AI tooling that was forcing developers to build complex infrastructure themselves. Now, his YC-backed framework is helping startups and enterprises build production-grade AI agents with far less overhead. You'll discover: - The pivotal moment Sam realized existing AI tools weren't solving the right problems - Strategic insights from his YC Winter 2025 experience that accelerated Mastra's growth - Why TypeScript-first is the right approach for building maintainable AI applications - The thoughtful licensing strategy that balances open-source principles with business sustainability - What current AI frameworks are missing and how Mastra addresses these limitations For founders and technical leaders building in the AI space, this conversation offers valuable perspective on navigating the rapidly evolving agent ecosystem while creating a sustainable developer tools business. Links: - Dev Propulsion Labs podcast: https://evilmartians.com/devpropulsionlabs - Try Mastra: npm create mastra@latest - Website: https://mastra.ai - GitHub: https://github.com/mastra-ai/mastra - Book: "Principles of Building AI Agents" on Amazon https://www.amazon.com/Principles-Building-Agents-Sam-Bhagwat/dp/B0DYH5GHDD - Sam Bhagwat Twitter: https://twitter.com/calcsam - Victoria Melnikova Twitter: https://twitter.com/vmelnikova_en Best comment on YouTube will be rewarded with a free copy of Sam's book

    28 min

Ratings & Reviews

5
out of 5
2 Ratings

About

Dev Propulsion Labs is a podcast about the business of developer tools. Hosts from the Evil Martians team interview prominent dev tools founders with the goal of sharing knowledge in the maturing developer tool and commercial open source industry.