this derivation will be built:
  /nix/store/3wlb7qnyda17ym8c8wqh41hkb5519255-opentofu-external-key-provider.drv
building '/nix/store/3wlb7qnyda17ym8c8wqh41hkb5519255-opentofu-external-key-provider.drv' on 'ssh-ng://builder@build-x86-01.clan.lol'
building '/nix/store/3wlb7qnyda17ym8c8wqh41hkb5519255-opentofu-external-key-provider.drv'
opentofu-external-key-provider> structuredAttrs is enabled

upload niks3: ok