Not too dissimilar to what I and some colleagues went through with our local dev tooling yesterday. Not related to DNS, but the frustration was on par.

Went around in circles deleting the repo, deleting packages from homebrew, reimporting the tool chain from our private repo, constantly got HTTP 400 errors from the Rails Console when we were attempting to use our local dev instance to talk to third party APIs.

Eventually found out it was because of a recent release of OpenSSL:

1. https://github.com/ruby/openssl/issues/949#issuecomment-3367... 2. https://github.com/openssl/openssl/issues/28758#issuecomment...

Had to rollback OpenSSL to a prior version, we were dangerously close to "time to wipe the Mac".