nixOS: Failed to connect to the YubiKey: connecting to pscs: the Smart card resource manager is not running about yubikey-agent HOT 10 OPEN

Got to the bottom of it - you'll need to enable services.pcscd.enable = true; in configuration.nix.
Since this is a direct dependency, I'll submit a PR to nixpkgs to automatically include transitive dep.

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@Lownin can you please test? NixOS/nixpkgs#215740

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@supermarin adding services.pcscd.enable = true; to my configuration.nix worked. I can now set up keys on nixOS. Thanks!

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@Lownin any chance you could test my PR? (remove the line from your configuration.nix and just use services.yubikey-agent.enable = true)?

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@supermarin happy to help, but not sure how to make sure nixOS pulls in the PR version and not the regular one.
How do I do that?

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@Lownin are you using flakes? if so, you can replace inputs.nixpkgs = whatever-you-have-here with inputs.nixpkgs = github:supermarin/nixpkgs/patch-3 and nixos-rebuild switch.

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@supermarin I haven't touched Flakes yet. Just started with nixOS. Working through learning the basics, then will tackle home-manager, then flakes. Is there an unpainful way for me to do it with a monolithic configuration.nix ?

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@Lownin let's take the conversation to NixOS Matrix channel and report here if the issue is resolved in the end, so we don't bloat the issue.

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Sounds good.
@Lownin:matrix.org

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@FiloSottile you can close, this is resolved in NixOS/nixpkgs#215740

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