this post was submitted on 11 Aug 2025
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Nix / NixOS

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NixOS 101: Using nix-serve as a Local Binary Cache - YouTube (youtube.com)
submitted 4 months ago by ruffsl@programming.dev to c/nix@programming.dev
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https://github.com/mcdonc/.nixconfig/blob/master/videos/nix-serve/script.rst

Btw, why is remote caching with substituter so iffy with NixOS? I encountered the same issues demonstrated in the video. It's not obvious why an offline substituter should block a local rebuild unless there is some nix option denoting as optional or required. Or why some matching entries in the remote nix-serve store are ignored (or untrusted?)

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[–] ruffsl@programming.dev 3 points 4 months ago

From the video notes, this alternative to nix-serve looks promising: