this derivation will be built:
  /nix/store/v9isa6i7n2lq6ifsf7h28f7racp0y21k-treefmt-check.drv
building '/nix/store/v9isa6i7n2lq6ifsf7h28f7racp0y21k-treefmt-check.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/v9isa6i7n2lq6ifsf7h28f7racp0y21k-treefmt-check.drv'
treefmt-check> traversed 449 files
treefmt-check> emitted 313 files for processing
treefmt-check> formatted 313 files (0 changed) in 1.543s

post-build step Upload to niks3: ok
time=2026-08-26T18:42:42.971Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-26T18:42:43.370Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-26T18:42:43.731Z level=INFO msg="Upload complete. (833ms)"