this derivation will be built: /nix/store/n5xdl12hs67yrdflbcd37hnh6bjv8fqw-shell-completion-test.drv Failed to find a machine for remote build! derivation: n5xdl12hs67yrdflbcd37hnh6bjv8fqw-shell-completion-test.drv required (system, features): (aarch64-linux, []) 1 available machines: (systems, maxjobs, supportedFeatures, mandatoryFeatures) ([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])