this derivation will be built:
  /nix/store/dfc4gpjl68s9akfg6qf2xv7wf3wjmhpk-interpolate-conformance.drv
building '/nix/store/dfc4gpjl68s9akfg6qf2xv7wf3wjmhpk-interpolate-conformance.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/dfc4gpjl68s9akfg6qf2xv7wf3wjmhpk-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-30T18:55:16.549Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-30T18:55:17.034Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-30T18:55:17.422Z level=INFO msg="Upload complete. (1.252s)"