this derivation will be built:
  /nix/store/0v07fzp16vzgwb6864cc2h73blbqgwy9-pyrite-zen-desktop.drv
building '/nix/store/0v07fzp16vzgwb6864cc2h73blbqgwy9-pyrite-zen-desktop.drv'
pyrite-zen-desktop> Name=Zen Browser
pyrite-zen-desktop> Exec=zen --name zen %U

upload niks3: ok