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fix: use extra-substituters to avoid untrusted user warnings #1351

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Merged
shunkakinoki merged 1 commit into from
Apr 4, 2026
Merged

fix: use extra-substituters to avoid untrusted user warnings #1351

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7 changes: 2 additions & 5 deletions home-manager/nix/nix.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -14,16 +14,13 @@
"nix-command"
"flakes"
];
use-xdg-base-directories = true;
substituters = [
"https://cache.nixos.org"
extra-substituters = [
"https://cache.garnix.io"
"https://cloudtide.cachix.org"
"https://nix-community.cachix.org"
"https://yazi.cachix.org"
];
trusted-public-keys = [
"cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
extra-trusted-public-keys = [

@gemini-code-assist gemini-code-assist Bot Apr 4, 2026

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medium

The order of keys in extra-trusted-public-keys does not match the order of URLs in extra-substituters. While this doesn't affect functionality, maintaining a consistent order (e.g., alphabetical or matching the substituters list) makes it significantly easier to verify that each cache has its corresponding public key and improves long-term maintainability.

"nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
"cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="

Copilot AI Apr 4, 2026

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The Garnix public key entry uses the identifier cache.garnix.io (no -1 suffix), while the other substituter keys follow the common <host>-1: pattern. If Garnix signs with a different key name (e.g. cache.garnix.io-1), Nix will treat signatures as untrusted and the cache will be ignored. Please verify the expected key name from Garnix and update the prefix so it matches the signing key identifier.

Suggested change
"cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
"cache.garnix.io-1:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="

Copilot uses AI. Check for mistakes.
"cloudtide.cachix.org-1:9NZ1Mah2+u8cd/CmVffFV23z5uFNpZSrhfgTt5fuN/4="
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