The compiledb target use hedron compile commands extractor to generate compile commands json file. This tool will create a symlink in the root directory so that compile commands will work when running locally from the root directory. Bazel uses isolated sandbox so this symlink is necessary if the compile commands are intended to be run locally.

However the bazel run //:format command uses prettier, and prettier will break on symlinks. We may be able to tell prettier to ignore the symlink in some way.