this derivation will be built:
  /nix/store/5jldvmwmw3nsnj054pw9sa9d0zx0y42m-treefmt-check.drv
building '/nix/store/5jldvmwmw3nsnj054pw9sa9d0zx0y42m-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 23 files
treefmt-check> emitted 20 files for processing
treefmt-check> formatted 20 files (0 changed) in 76ms

post-build step Route build to niks3: ok
Pushing mulatta/dagster-nix to https://niks3.mulatta.io
time=2026-08-28T11:08:35.218+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-08-28T11:08:35.827+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-08-28T11:08:36.312+09:00 level=INFO msg="Upload complete. (1.164s)"