error: … while calling the 'derivationStrict' builtin at «nix-internal»/derivation-internal.nix:37:12: 36| 37| strict = derivationStrict drvAttrs; | ^ 38| … while evaluating derivation 'nixos-system-malt-26.11.20261101.7cc2879' whose name attribute is located at «git+https://github.com/mulatta/nixpkgs?ref=main&rev=7cc2879ac4153d037f80caf7012decf0c23038b4&shallow=1»/pkgs/stdenv/generic/make-derivation.nix:651:11 … while evaluating attribute 'buildCommand' of derivation 'nixos-system-malt-26.11.20261101.7cc2879' at «git+https://github.com/mulatta/nixpkgs?ref=main&rev=7cc2879ac4153d037f80caf7012decf0c23038b4&shallow=1»/nixos/modules/system/activation/top-level.nix:63:7: 62| allowSubstitutes = false; 63| buildCommand = systemBuilder; | ^ 64| … while evaluating the option `environment.etc."nixos-containers/hermes.conf".source': … while evaluating definitions from `/nix/store/r6ahpidss05ksd0gkhc4pqbg6rfcm2sc-source/nixos/modules/system/etc/etc.nix': … while evaluating the option `environment.etc."nixos-containers/hermes.conf".text': … while evaluating definitions from `/nix/store/r6ahpidss05ksd0gkhc4pqbg6rfcm2sc-source/nixos/modules/virtualisation/nixos-containers.nix': (stack trace truncated; use '--show-trace' to show the full, detailed trace) error: Refusing to evaluate package 'python3.14-posthog-7.71.0' in /nix/store/r6ahpidss05ksd0gkhc4pqbg6rfcm2sc-source/pkgs/development/python-modules/posthog/default.nix:80 because it has problems: - broken: This package is broken. See also https://nixos.org/manual/nixpkgs/unstable#sec-problems To allow evaluation regardless, use: - Nixpkgs import: import nixpkgs { config = ; } - NixOS: nixpkgs.config = ; - nix-* commands: Put below code in ~/.config/nixpkgs/config.nix { problems.handlers = { posthog.broken = "warn"; # or "ignore" }; }