this derivation will be built:
  /nix/store/fdw5h19bi1y0aq9v4mcyhq2j2j8mag6i-run-sigma-vm-on-aarch64-darwin.drv
building '/nix/store/fdw5h19bi1y0aq9v4mcyhq2j2j8mag6i-run-sigma-vm-on-aarch64-darwin.drv' on 'ssh-ng://builder@build04.clan.lol'
building '/nix/store/fdw5h19bi1y0aq9v4mcyhq2j2j8mag6i-run-sigma-vm-on-aarch64-darwin.drv'

upload niks3: ok