Elixir - Dynamic, functional language designed for building scalable and maintainable applications
Glimmer - Fast and light-weight UI components for the web
Rust - A safe, concurrent, practical language
Preact.js - Preact is a fast 3kB alternative to React with the same modern API. Components & Virtual DOM.
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Svelte - Cybernetically enhanced web apps