Deploy your own SWR project with Vercel.

Download the example:

curl https://codeload.github.com/vercel/swr/tar.gz/master | tar -xz --strip=2 swr-master/examples/storage-tab-sync
cd storage-tab-sync

Install it and run:

yarn
yarn dev
# or
npm install
npm run dev

Deploy it to the cloud with now (download)

now

Show how you could use SWR to synchronize localStorage values between tabs.