The app in the article is a relatively simple demo app. These are the build times and sizes from a real relatively large react SPA I help maintain dist/asset

The app in the article is a relatively simple demo app. These are the build times and sizes from a real relatively large react SPA I help maintain dist/assets/app.css 98.33 kB │ gzip: 17.69 kB dist/assets/app.js 1,050.14 kB │ gzip: 244.88 kB built in 15.41s At these sizes, an islands/resumable based approach can trim a ton of loading time on mobile