Top 4 serverside open source projects

Chart.js on the server in Node.js

Jquery DataTables with Asp.Net Core server side multi column sorting and searching Demo Project.

Code examples and slides from my 2021 talk Server-Side is Dead! Long Live Server-Side (+ HTMX), presented at DjangoCon and Code Code Code

Envalid is a framework agnostic and fluent server side form validation package for PHP