this derivation will be built:
  /nix/store/cy7541dy3r5x4mszjjk54sablq0a5988-treefmt-check.drv
building '/nix/store/cy7541dy3r5x4mszjjk54sablq0a5988-treefmt-check.drv'
treefmt-check> traversed 532 files
treefmt-check> emitted 289 files for processing
treefmt-check> formatted 289 files (0 changed) in 1.404s

post-build step Upload to niks3: ok
time=2026-09-22T10:36:09.411Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-22T10:36:09.793Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-22T10:36:10.349Z level=INFO msg="Upload complete. (958ms)"