this derivation will be built:
  /nix/store/fllg79b3ap1b8b9rqq8l7zwh71p212ga-nix-shell.drv
building '/nix/store/fllg79b3ap1b8b9rqq8l7zwh71p212ga-nix-shell.drv'
nix-shell> Running phase: buildPhase

post-build step Upload to niks3: ok
time=2026-08-25T11:51:46.054Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (255 already cached)"
time=2026-08-25T11:51:46.054Z level=INFO msg="Uploading 4g4sgmij7wcrynkjy566xi5ay82x3i2n-nix-shell (9.3KB)"
time=2026-08-25T11:51:46.782Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T11:51:47.107Z level=INFO msg="Upload complete. (1.251s)"