Watch movies in sync with a partner using a vibe-coded Chrome extension
A developer vibe-coded a Chrome extension that keeps video playback perfectly in sync between him and his girlfriend through a WebSocket server.
Source
@sahilxdev on X · 2026-10-19
Written in our own words. Credit to the original author. Link checked 2026-10-22.
What they did
A developer vibe-coded a Chrome extension that keeps video playback perfectly in sync between him and his girlfriend through a WebSocket server.
Result (as claimed)
They've used it for movie nights for three months.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Write a one-page brief
Describe the app in plain words: who it is for, the 3 core screens or actions, and what "done" looks like.
Start the project with your agent
Open Chrome and paste the brief. Ask it to propose a stack and a file plan before writing code.
Build one slice at a time
Ship the smallest working flow first, run it, then add features one by one. Commit after each working step.
Test it like a user
Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.
Check security and ship
Keep keys in environment variables, check auth and database rules, then deploy and share the link.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Watch movies in sync with a partner using a vibe-coded Chrome extension What the original author did: A developer vibe-coded a Chrome extension that keeps video playback perfectly in sync between him and his girlfriend through a WebSocket server. Reported result (as claimed by the author): They've used it for movie nights for three months. Source: https://x.com/sahilxdev/status/2112199644268916990 Tools they used: Chrome, WebSockets, AI coding agent Category: Vibe coding & apps Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Watch movies in sync with a partner using a vibe-coded Chrome extension What the original author did: A developer vibe-coded a Chrome extension that keeps video playback perfectly in sync between him and his girlfriend through a WebSocket server. Reported result (as claimed by the author): They've used it for movie nights for three months. Source: https://x.com/sahilxdev/status/2112199644268916990 Tools they used: Chrome, WebSockets, AI coding agent Category: Vibe coding & apps Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Watch movies in sync with a partner using a vibe-coded Chrome extension What the original author did: A developer vibe-coded a Chrome extension that keeps video playback perfectly in sync between him and his girlfriend through a WebSocket server. Reported result (as claimed by the author): They've used it for movie nights for three months. Source: https://x.com/sahilxdev/status/2112199644268916990 Tools they used: Chrome, WebSockets, AI coding agent Category: Vibe coding & apps Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
The Daily 5
Get five new use cases tomorrow morning
Free. Real sources. Unsubscribe any time.
Guides for this use case
How to build a Chrome extension with AI · How to vibe code an app with Claude Code · How to make faceless YouTube videos with AI
Related use cases
Vibe-code a Chrome extension in a weekend and publish it to the Web Store
A builder vibe-coded a Chrome extension over one weekend and published it on the Chrome Web Store.
Vibe-code a Chrome extension that mutes ads on HBO Max
A viewer tired of political ads vibe-coded a Chrome extension that automatically mutes ad breaks on HBO Max.
Vibe-code a Chrome extension that skips ads on streaming sites
A user vibe-coded a Chrome extension that skips ads on Netflix, HBO Max, Disney+ and other streaming sites.
Vibe-code an open-source BIM app that saves natively to IFC
BimCraft is a free, open-source, vibe-coded BIM authoring app for building design. It's in alpha, but unlike most tools it uses the open IFC format as its native file format.