Marc Seitz is the founder of Papermark, an open-source alternative to DocSend that helps startups share documents more securely and affordably. With a background spanning physics, hackathons, and startup building—from co-founding HackerBay to launching Intel Ignite Europe—Marc brings deep insights into open source innovation, founder culture, and the evolving intersection of AI and software development.In this episode, he discusses how open source is reshaping enterprise software, the “hackathon mentality” that drives rapid iteration, and why transparency and community are becoming core competitive advantages in tech. Marc also shares his perspective on building Papermark, navigating licensing, handling community pull requests, and how AI is transforming open source collaboration.In Today’s Episode We Discuss:00:01 Introduction and Guest Overview00:28 From Physics to Software01:41 Discovering the Physics-to-Software Path03:06 The Appeal of Instant Feedback in Coding04:36 Founding HackerBay05:15 The Rise of Dropout Culture in Startups06:14 Lessons from Early Experiments07:25 The Hackathon Mentality10:30 The Aha Moment for Papermark11:39 Building an Open-Source Data Room13:53 Why Founders Embrace Open Source14:49 Open Source vs Proprietary Software15:26 Selling to Enterprises and Data Sovereignty17:14 Transparency and Trust Through Open Source19:04 Who Uses Papermark20:59 Licensing Models and AGPL Explained22:27 Enforcing Open-Source Licenses23:33 Legal and Ethical Issues in Open Source24:50 Enterprise Adoption and Pricing25:31 Papermark’s Growth and Free Tier28:15 Competing with Incumbents29:22 Community Contributions and AI Integration30:45 AI and the Future of Open Source Collaboration33:43 Control vs Convenience in Software36:13 Surprising Community Pull Requests38:22 Managing Product Bloat and Feature Creep40:32 The Role of Maintainers and Contributors42:04 Leveraging Community and Capital Efficiency43:55 Building Publicly and Growing a Developer Community46:01 AI, RAG, and Secure Document Search47:15 Is Data Ever Truly Secure?48:32 Transparency and Audit Logs in M&A50:31 Evolution of Data Rooms and Compliance51:02 Adding e-Signatures and Future Roadmap51:49 The Future of Open Source SoftwareSubscribe on Spotify: https://open.spotify.com/show/6Ga6v0YUsHotLhjap67uu5Subscribe on Apple Podcasts: https://podcasts.apple.com/us/podcast/ignite-conversations-on-startups-venture-capital-tech/id1709248824Follow Marc Seitz on LinkedIn: https://www.linkedin.com/in/marcseitz/ Follow Marc Seitz on X: https://x.com/mfts0Follow Team Ignite on X: https://x.com/teamignitevcFollow Brian on X: https://x.com/brianrbellFollow Brian on Linkedin: https://www.linkedin.com/in/bblinkedin/Visit Our Website: https://www.teamignite.venturesSubscribe to Our Newsletter: https://insights.teamignite.ventures/👂🎧 Watch, listen, and follow on your favorite platform: https://tr.ee/S2ayrbx_fL 🙏 Join the conversation on your favorite social network: https://linktr.ee/theignitepodcast🔥 Club Ignite is booking fast — our next gathering of top founders, investors, and operators will be our biggest yet. Apply now before spots fill: https://teamignite.decilehub.com/e/club-ignite-25

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