Static Site Generation (SSG)

Test 1:This timestamp 👉 2023-06-01T21:10:43.915Z should be when the `npx open-next build` was run, not when the page is refreshed. Hence, this time should not change on refresh.js

Test 2:Check your browser's developer console. the request might show cache MISS on first load. Subsequent refreshes should shows cache HIT.