these 5 derivations will be built:
  /nix/store/1pgprzf0kzz0a4c34hi8w3na854ngn37-claude.drv
  /nix/store/gapfl6apv3i9s227r736a98a19vf8v0j-claude.drv
  /nix/store/6hhmvgwiy6csmsc0zn8b6xj56br8ygqb-claude-code-2.1.281.drv
  /nix/store/mfskczgcd8ndh44kvxk8arhcq7ilry97-claudebox.drv
  /nix/store/glaykwxyj04hbvp1sq1yykfy20kdy5p1-check-claudebox.drv
building '/nix/store/mfskczgcd8ndh44kvxk8arhcq7ilry97-claudebox.drv'
building '/nix/store/glaykwxyj04hbvp1sq1yykfy20kdy5p1-check-claudebox.drv'

upload niks3: ok