this derivation will be built:
  /nix/store/1hz89zakjckjjkgfnr005fvr0a3w7dgm-firefox-devtools-mcp-0.10.6.drv
this path will be fetched (2.3 MiB download, 6.9 MiB unpacked):
  /nix/store/0ng68zwwz63nzql69fzkb0gxv7knibaq-geckodriver-0.37.1