---
id: TASK-3
title: Add live viewer counter to stream page
status: Done
assignee: []
created_date: '2026-02-22 00:28'
labels: []
dependencies: []
priority: medium
---

## Description

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Heartbeat-based viewer tracking via archive-worker Flask endpoints. Page sends POST /api/viewers/heartbeat every 5s, displays count with pulsing red dot. Nginx proxies /api/ to archive-worker.
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