Update the nixpkgs pin so the flake evaluates again - #19
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The lock pointed at nixpkgs from 2024-04-07, which predates tpm2-openssl. Every step-agent derivation from 0.69.0 on requires it, and flake.nix builds the packages output by filtering the whole version set, so one unevaluable file broke nix build/run/flake show for every attribute when the repo's own lock was used. Customers following the README were unaffected because inputs.nixpkgs.follows overrides the lock. CI never caught this: build.yml evaluates against live channel tarballs via NIX_PATH, not the flake lock.
dopey
approved these changes
Aug 26, 2026
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nix build github:smallstep/nur#<anything>— along withnix run,nix profile install, andnix flake show— currently fails withFunction called without required argument "tpm2-openssl". The lock pins nixpkgs from 2024-04-07, which predates tpm2-openssl; every step-agent derivation from 0.69.0 on requires it, and becauseflake.nixbuilds thepackagesoutput by filtering the entire version set, one unevaluable file poisons every attribute. Customers following the README never noticed becauseinputs.nixpkgs.followsoverrides the lock, and CI never caught it becausebuild.ymlevaluates against live channel tarballs viaNIX_PATH, not the flake lock — worth a follow-up check that evals the flake against its own lock.Verified on aarch64-linux with the updated lock:
nix flake showevaluates the full package set,nix build .#step-agent_0_69_0-rc3builds and the binary reportsstep-agent/0.69.0-rc3, and the barestep-agentattribute still resolves to the newest stable (0.69.0).