these 2 derivations will be built:
  /nix/store/62r43rrlkwdx1pv499nihly53cmiq2cf-hol-guard-3.38.0.drv
  /nix/store/cw8k8p50m8kakslp68kv5bwd9v2w3dpz-check-hol-guard.drv
this path will be fetched (658.6 KiB download, 4.2 MiB unpacked):
  /nix/store/a0rlsq7npvg4s8kqz1dd9w2m5n77v7g5-python3.14-mcp-2.3.0