I need a full-stack developer to rebuild the core experience of “Vibe Coding” for both web and mobile. The goal is to replicate the existing product’s look, feel, and workflow without adding any new functionality at this stage. The build must include: • User Authentication – secure sign-up, login, and profile management. • Code Editor – an in-browser editor with syntax highlighting and real-time preview that works equally well in the mobile app. • Community Forum – thread creation, replies, and basic moderation tools. The web version should run smoothly in modern browsers, while the mobile version should be packaged for iOS and Android with the same feature set and shared data layer. Acceptance criteria • All three features operate reliably on both platforms. • UI/UX matches the reference product closely. • Single codebase where possible, cleanly structured and documented so future enhancements are straightforward. If you have experience building cross-platform apps with technologies such as React, React Native, Flutter, or similar, please let me know—though I’m open to whichever stack you prefer as long as it meets the goals above.