this derivation will be built:
  /nix/store/0n2r44y0czykx02ammffa72ygk85a671-format-check.drv
building '/nix/store/0n2r44y0czykx02ammffa72ygk85a671-format-check.drv'
format-check> ERRO formatter | ruff-check[1]: failed to apply with options '[check --fix]': exit status 1
format-check> 
format-check> EXE001 Shebang is present but file is not executable
format-check>  --> packages/omnigraph/update.py:1:1
format-check>   |
format-check> 1 | #!/usr/bin/env python3
format-check>   | ^^^^^^^^^^^^^^^^^^^^^^
format-check> 2 | """Update all Omnigraph outputs through their shared source definition."""
format-check>   |
format-check> 
format-check> Found 1 error.
format-check> 
format-check> traversed 21 files
format-check> emitted 15 files for processing
format-check> formatted 14 files (0 changed) in 1.118s
format-check> Error: failed to finalise formatting: formatting failures detected
error: Cannot build '/nix/store/0n2r44y0czykx02ammffa72ygk85a671-format-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/mqixf1wpgg3dngszqy68i8ynv1yxv4v1-format-check
       Last 16 log lines:
       > ERRO formatter | ruff-check[1]: failed to apply with options '[check --fix]': exit status 1
       >
       > EXE001 Shebang is present but file is not executable
       >  --> packages/omnigraph/update.py:1:1
       >   |
       > 1 | #!/usr/bin/env python3
       >   | ^^^^^^^^^^^^^^^^^^^^^^
       > 2 | """Update all Omnigraph outputs through their shared source definition."""
       >   |
       >
       > Found 1 error.
       >
       > traversed 21 files
       > emitted 15 files for processing
       > formatted 14 files (0 changed) in 1.118s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/0n2r44y0czykx02ammffa72ygk85a671-format-check.drv