error: … while calling the 'derivationStrict' builtin at «nix-internal»/derivation-internal.nix:37:12: 36| 37| strict = derivationStrict drvAttrs; | ^ 38| … while evaluating derivation 'nvf-with-helpers' whose name attribute is located at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1033616.6cdc7fc76e8b/nixexprs.tar.zst?narHash=sha256-w9ktuEgDIWGsX58tR3nI5HBGNy1idO8KY4urO3msko0%3D»/pkgs/stdenv/generic/make-derivation.nix:651:11 … while evaluating attribute 'paths' of derivation 'nvf-with-helpers' at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1033616.6cdc7fc76e8b/nixexprs.tar.zst?narHash=sha256-w9ktuEgDIWGsX58tR3nI5HBGNy1idO8KY4urO3msko0%3D»/pkgs/build-support/trivial-builders/default.nix:579:9: 578| ]; 579| paths = mapPaths (path: "${path}${stripPrefix}") paths; | ^ 580| buildCommand = '' (stack trace truncated; use '--show-trace' to show the full, detailed trace) error: Refusing to evaluate package 'wl-clipboard-rs-0.9.3' in /nix/store/r66anqkjwpgyxqlkjpi4rwld2jxkyvm6-source/pkgs/by-name/wl/wl-clipboard-rs/package.nix:75 because it is not available on the requested hostPlatform: hostPlatform.system = "aarch64-darwin" package.meta.platforms = [ "aarch64-linux" "armv6l-linux" "armv7l-linux" "i686-linux" "loongarch64-linux" "powerpc-linux" "powerpc64-linux" "powerpc64le-linux" "riscv64-linux" "s390x-linux" "x86_64-linux" "armv5tel-linux" "armv7a-linux" "m68k-linux" "mips-linux" "mips64-linux" "mipsel-linux" "mips64el-linux" "riscv32-linux" ] package.meta.badPlatforms = [ { abi = { abi = "n32"; }; cpu = { bits = 64; family = "mips"; }; } ] a) To temporarily allow packages that are unsupported for this system, you can use an environment variable for a single invocation of the nix tools. $ export NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1 Note: When using `nix shell`, `nix build`, `nix develop`, etc with a flake, then pass `--impure` in order to allow use of environment variables. b) For `nixos-rebuild` you can set { nixpkgs.config.allowUnsupportedSystem = true; } in configuration.nix to override this. c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add { allowUnsupportedSystem = true; } to ~/.config/nixpkgs/config.nix.