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OpenSimulator server ported to Rust and Zig

A 90-day port of the OpenSimulator virtual-world server to Rust and Zig, mostly written with Claude Opus 4.6.

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Credits

  • Reddit poster Tdm_787 Source ↗
  • Repository account TDMitchell787 Source ↗

Earliest dated source: 2 Apr 2026

Code ↗

The full story

The poster says he spent 90 days on a complete port of the OpenSimulator server environment to Rust and Zig, almost entirely done with Claude Opus 4.6. He describes it as open source and fast, with 3D simulation, physics and scripting. The post is brief and says "almost completely done", so how much of it works is not shown.

How it was done

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Sources

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

  • Reddit: Opensin-nextgenForum threadreddit.com
    Reddit poster: Tdm_787Posted 2 Apr 2026

    The maker's post on r/ClaudeCode.

    If it disappears: archived copy of Reddit: Opensin-nextgen (opens in a new tab)

  • The code: github.comCode or repositorygithub.com
    Repository account: TDMitchell787

    Linked from the post.

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