Worked on the QwikDev/qwik repository to deliver Deno package manager support for production builds, enabling seamless Deno-based workflows previously blocked by manifest and static site generation issues. Addressed production build failures by ensuring client manifests are correctly passed to server builds and that static site generation operates under Deno. Unified runtime paths by routing Deno to the Node SSG module, achieving parity with Bun, and removed obsolete static generation stubs. Refactored the Vite plugin’s compatibility gating to include Deno across all environments. This work was implemented using TypeScript and full stack development skills, focusing on cross-runtime compatibility and maintainability.