Next.js 16+ and Turbopack — incremental bundling, FS caching, dev speed, and when to use Turbopack vs webpack.
Install
npx skills add affaan-m/ECC --skill nextjs-turbopacknpx skills add affaan-m/ECC --skill nextjs-turbopack -a claude-code -gnpx skills add affaan-m/ECC --skill nextjs-turbopack -a codex -ggemini skills install https://github.com/affaan-m/ECC.git --path .cursor/skills/nextjs-turbopackgh skill install affaan-m/ECC nextjs-turbopackgit clone --depth 1 https://github.com/affaan-m/ECC /tmp/affaan-m__ECC
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/affaan-m__ECC/.cursor/skills/nextjs-turbopack ~/.claude/skills/nextjs-turbopack # Claude Code
cp -R /tmp/affaan-m__ECC/.cursor/skills/nextjs-turbopack ~/.agents/skills/nextjs-turbopack # Codex, Cursor, Gemini CLI, Copilot, OpenCode