Lobsters·44wNext.js 15.1+ is unusable outside of Vercel
Next.js 15.1+ introduces metadata streaming that breaks SEO for non-Vercel deployments by requiring JavaScript execution to render metadata tags instead of including them in the HTML head. This change forces developers into Vercel's ecosystem, as other hosting providers struggle with incomplete OpenNext adapters. The situation worsens with security vulnerabilities in older versions, creating a dilemma between functionality and security. Static builds are also affected, requiring crawler detection logic just to serve basic metadata.