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Velo is a full-stack development platform that empowers you to rapidly build, manage and deploy professional web apps. Web modules are exclusive to Velo and enable you to write functions that run server-side in the backend. With web modules you can import functions from backend into files or scripts in page code or public files. Velo handles all the client-server communication required to enable this access. See the advanced tip below if you want to know how this communication is handled. You can import a web module function into another module in your client-side code.