these 4 derivations will be built:
  /nix/store/znxviard0v65l0accvndbzn16gq7hwvy-claude.drv
  /nix/store/a1lp7myfkbjdkp1wnjzr505fz966w03y-claude-code-2.1.286.drv
  /nix/store/7y2vfd9502zp8avj7cg8ykwzgiivgw7d-claudebox.drv
  /nix/store/vdsv18jlq8cwszfvw7vvily8c440r70y-check-claudebox.drv
building '/nix/store/7y2vfd9502zp8avj7cg8ykwzgiivgw7d-claudebox.drv'
building '/nix/store/vdsv18jlq8cwszfvw7vvily8c440r70y-check-claudebox.drv'

upload niks3: ok