977: We built a CSS Challenge platform
09 February 2026

977: We built a CSS Challenge platform

Syntax - Tasty Web Development Treats

About
Scott and Wes break down how they built SynHax, the real-time CSS Battle app powering the upcoming Mad CSS tournament. From SvelteKit and Zero to diffing algorithms, sync conflicts, and a last-minute hackweek glow-up, this one’s a deep dive into shipping ambitious web apps fast.


Show Notes



00:00 Welcome to Syntax!


00:50 March Mad CSS Tournament.


03:19 Brought to you by Sentry.io.


03:59 What the heck is a CSS Battle?


05:34 The tech stack.


06:30 Svelte Kit.


06:44 Zero Sync.

Zero Docs


Zero Svelte.





07:32 Drizzle.


07:58 Supabase.


08:23 Graffiti.


10:45 Sync Server.


12:10 Cloudflare Workers.


12:23 Local File System.





13:26 How Zero Works.


13:48 Zero Sync Client.


15:39 API server.





19:34 Dealing with states and conflicts.


24:25 The Hackweek Project.


25:29 The Diffing Algorithm.


35:22 The bugs.



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