I take great pride in maintaining that this error message works nicely with every major release of Eleventy and doesn’t dump a weird stack trace for folks running old Node.

~/Code/eleventy-base-blog (main ✘)✹ ᐅ node --version v12.22.10 ~/Code/eleventy-base-blog (main ✘)✹ ᐅ npx @11ty/eleventy Eleventy requires Node 18. You will need to upgrade Node to use Eleventy!