SMRTR TechJun 24, 2026Hacker News

Building a LoFi Radio

SMRTR summary

A software engineer who grew fond of lo-fi music while studying in college built a fully functional internet radio station from scratch to share his personal playlist. The station streams synchronized MP3 audio to all listeners using a precision timer that sends audio frames every 26 milliseconds, with a buffer to handle choppy connections. A companion tool called Shelf keeps the playlist synced across Spotify and YouTube Music automatically.

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