We've built Daytona on a robust tech stack, primarily using TypeScript for 90% of our codebase and Go for 10%, mainly for workspace internals. Our repository is structured as a monorepo with Nx, which has significantly increased developer velocity. We've also made extensive use of off-the-shelf products like Helm charts and Terraform to simplify deployments. Additionally, we have strict lint rules, clean development workflows, and open-source documentation using Astro and Markdown. Specifically, we're using Next.js and React for our server-side and front-end applications, respectively. Our IDE-specific components are developed separately from the core repository and catered to unique requirements of each IDE.