these 2 derivations will be built:
  /nix/store/vmxmall0h8dly4sln8kb9bx61rh72wcm-python3-3.13.15-env.drv
  /nix/store/1w8j56mxv86aq421997m9hmz9a2hy4dw-pytest-impure.drv
these 7 paths will be fetched (37.2 MiB download, 128.8 MiB unpacked):
  /nix/store/9f8if437yj3rvxigk7gfnqivkpb7pfr8-nss-cacert-3.126
  /nix/store/8gg2n5r87vsyy8d78n3s90a9r929c14v-python3-3.13.15
  /nix/store/n7mvc2z4rdjpy8qlmj9xdc1zzg9f9iny-python3.13-iniconfig-2.3.0
  /nix/store/q986mbmlrls4kmaywi5lgj3mq9zby827-python3.13-packaging-26.2
  /nix/store/d59q189zzaw7z6diakbjqv80p9isa7fw-python3.13-pluggy-1.6.0
  /nix/store/siq7jmnjcmx5almrcvncggy4dy1nw11d-python3.13-pygments-2.20.0
  /nix/store/lbgihj2bcw9dpk2skp79qn3882pzxacf-python3.13-pytest-9.1.1
Failed to find a machine for remote build!
derivation: pzvp1kxnx0apcdcl6ajgx46fpp7grclf-pytest-impure.drv
required (system, features): (aarch64-darwin, [ca-derivations])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
error: Cannot build '/nix/store/pzvp1kxnx0apcdcl6ajgx46fpp7grclf-pytest-impure.drv'.
       Reason: platform mismatch
       Required system: 'aarch64-darwin'
       Current system: 'x86_64-linux'
error: build of resolved derivation '/nix/store/pzvp1kxnx0apcdcl6ajgx46fpp7grclf-pytest-impure.drv' failed