To create a new project using this template, run:
$ npm create cloudflare@latest -- --template https://github.com/zhelezkov/solana-action-templates/cloudflare-workers-template
To test your project, run:
npm run dev
And then open Dialect interstitial website: https://dial.to/?action=solana-action:http://localhost:8787. It'll use your local web server, so you can develop and test almost in realtime.
You can use cloudflare workers to deploy, it's free and has a generous free tier:
npm run deploy
Read more: https://developers.cloudflare.com/workers/