I am scared but excited

TL;DR

Open-sourcing your business is becoming essential because AI agents prefer OSS tools, customers self-customize instead of churning, and community R&D replaces expensive internal feature development.

Key Points

• 1.The traditional SaaS moat is collapsing. Companies like Salesforce win by accumulating thousands of features where any given customer uses ~5%, making competition impossible — but AI agents now let customers build missing features themselves, destroying that lock-in.
• 2.Competitors cloning, self-hosting, and security exploits are real open-source risks. Cal.com is being flooded with exploit attempts due to its open codebase, and T3 Chat hasn't been open-sourced yet because a two-and-a-half-person team could lose millions of dollars in seconds from a vulnerability.
• 3.Vercel's success proves modular 'plug in with code' beats plugin systems. Rather than building every feature, Vercel hosts your code and lets you integrate Supabase, Convex, Cloudflare, etc. yourself — a model applicable beyond infrastructure to application software.
• 4.T3 Code's fork rate reveals a fundamental shift in user behavior. With 42K installs and 16K weekly users, T3 Code has 1,500 forks — 10% of weekly users — with people like Emanuel building split-chat, queuing systems, and TMUX integration on top of the open codebase.
• 5.Mitchell Hashimoto's 'building block economy' article confirms the thesis. LibGhosty, the library powering Ghosty's terminal layer, gained multiple million daily users in 2 months versus Ghosty's 1 million daily users over 18 months, proving building blocks outgrow mainline apps.
• 6.AI agents actively prefer open, installable, free software over closed commercial tools. Independent research shows models repeatedly choose open alternatives under diverse conditions, and Claude Code recommends Vercel 100% of the time for JS deployments and Zustand 65% of the time for state management.
• 7.The commercialization answer lies in stickiness through self-forking, not feature lock-in. The proposed model: customers fork the open-source frontend, customize it freely, but continue paying for the managed backend infrastructure — seen in Theo's own Loom alternative 'Lawn' being forked by creators like Snazzy Labs.
• 8.The 'patch.md' concept is Theo's unreleased idea for self-healing software forks. Instead of just editing code, every customization also writes intent to a patch.md file; when upstream updates break a fork, an agent reads patch.md and automatically reapplies the user's changes to the new version.
• 9.Open source creates a compounding flywheel Theo is betting his portfolio on. More community → agents recommend it more → more customers → more outsourced R&D from forks → better mainline software, a cycle Theo calls his highest-conviction investment thesis with personal financial stakes.