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Image: u/InTheTreetop on Reddit · A four-lane mix laid out on the Mixtopia timeline

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Mixtopia: a timeline mix editor for Linux to replace Mixmeister

A trance DJ with no programming background built a timeline mix and mashup editor for Linux with Claude Code to replace the discontinued Mixmeister Fusion.

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Credits

  • Reddit poster InTheTreetop Source ↗
  • Repository account ThingsWeShouldSay Source ↗

Earliest dated source: 11 Nov 2026

Code ↗

The full story

Mixtopia is a timeline mix and mashup editor for Linux, built over about a month with Claude Code by a trance DJ with no programming background who could find nothing to replace MixMeister Fusion after moving to Linux.

Songs go onto a multi-lane timeline, where it detects each one's tempo and first beat and stretches it to the project tempo without changing pitch. Transitions are drawn by hand as volume, EQ and filter lines. It can loop and chop songs, detect and correct keys, and export MP3 or FLAC.

It is free, offline and AGPL-3.0, shipped as a single AppImage. The maker uses it daily but isn't planning further development.

How it was done

Tools

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: Mixtopia: A Timeline Music Mix and Mashup Editor for Linux / Mixmeister ReplacementForum threadreddit.com
    Reddit poster: InTheTreetopPosted 11 Nov 2026

    The DJ's post in r/ClaudeCode.

  • The code: github.comCode or repositorygithub.com
    Repository account: ThingsWeShouldSay

    The editor's source code and README.

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