<sig-nal> is a zero-dependencies Web Component for Server-Side Rendering with Signals (SSRS) in 1410 bytes (minified + Brotli-11-compressed).

Here is a live demo.
This software is in beta, but already used in production.
No build needed, 27 lines of static HTML, 3.1 kB. Compares favourably to Fresh framework by Deno and others! Try it out!

The wellknown DBMonster benchmark from 2015, reimagined <sig-nal>-style, runs crazy fast here!