David Singleton, former CTO of Stripe, has launched Dreamer, a consumer-focused platform for discovering, building, and using AI agents and agentic applications. Co-founded with Hugo Barra, the startup emerged from stealth this month after operating as /dev/agents in 2024. Dreamer centers on a personal "Sidekick" AI agent that helps users customize experiences through natural language, effectively functioning as "an agent that builds agents." The platform distinguishes itself through its full-stack technical approach, shipping proprietary SDKs, logging systems, databases, prompt management tools, serverless functions, and virtual machine infrastructure. Unlike competitors that restrict technology choices, Dreamer allows developers to deploy arbitrary code, reducing friction for tool builders. The company is actively building its ecosystem through financial incentives, including hiring Builders in Residence and offering $10,000 cash prizes for the best tools developed on the platform, demonstrating awareness of the four-sided network effects critical to agent platforms. Dreamer's launch represents a significant move by veteran technologists to democratize AI agent development beyond technical users, positioning the platform as an alternative to existing website builders and low-code application platforms.