That’s not quite the right way to put it. Client and Server have different roles, yes. That does not mean they have to be written using different languages. Jav

That’s not quite the right way to put it. Client and Server have different roles, yes. That does not mean they have to be written using different languages. JavaScript on the server (in Node or Deno) is perfectly fine and scales reasonably well. If we take a step back from the most well-known client-server system (the World Wide Web) and look at other examples, we’ll find that client and server are often developed together, in a single language and similar architecture.