this derivation will be built:
  /nix/store/4gj83hzrqs4qb1j0psmv9sf8i7vx7b9x-nix-shell.drv
building '/nix/store/4gj83hzrqs4qb1j0psmv9sf8i7vx7b9x-nix-shell.drv'
nix-shell> Running phase: buildPhase

post-build step Upload to niks3: ok
time=2026-09-16T00:07:50.528Z level=INFO msg="Uploading 0 paths to niks3.scientistexperience.net (980 already cached)"
time=2026-09-16T00:07:51.063Z level=INFO msg="Upload complete. (1.035s)"