I've been very impressed, so far, with Datastar , a tiny JavaScript library for front-end work; I've been switching a personal side-project from using Svelte for it's UI to Datastar, and as amazing as Svelte is, Datastar has impressed me more. Datastar's essential concept is for the client to shift virtually all logic and all markup rendering back to the server; event handlers can succinctly call server endpoints, which return markup, and the markup is morphed into the running DOM. This makes the server-side is the system of record. Datastar has a nice DSL, based on data-* attributes, allowing you to do nearly anything you need to do in the client, declaratively. Alternately, the server can start an SSE (server sent event) stream and send down markup to morph into the DOM, or JavaScript to execute, over any period of time. For example, my project has a long running process and it was a snap to create a modal progress dialog and keep it updated as the server-side process looped through its inputs.…