I agree with your goal. Have you looked into Elixir/Phoenix? Phoenix is a great server-side web framework, and with the recent addition of Phoenix LiveView you

I agree with your goal. Have you looked into Elixir/Phoenix? Phoenix is a great server-side web framework, and with the recent addition of Phoenix LiveView you can do really nice rich client side stuff, but all written server-side in Elixir. LiveView is an alternate architecture to intercooler.js but with the same goal. There is a standard JS bundle that goes to the client that opens a websocket to the server. You annotate HTML tags (like intercooler) and then handle the events on the server. This is all abstracted away though so you end up writing a controller that looks a lot like a normal server side rendered page.