For the record, e.g. http://intrepid.danplanet.com/pipermail/chirp_users/

... please ignore my previous replies below.  Written with not enough caffeine and/or reading comprehension.

On 3/5/2019 1:01 PM, Peter wrote:
To be clear, that question was rhetorical.  If/when OSX no longer supports 32-bit executables, then it will need a 64-bit Python runtime, and a 64-bit CHIRP -- and the KK7DS Python runtime will also need to be updated accordingly.

On 3/5/2019 12:54 PM, Peter wrote:
It's been a very long time for me since I looked at Mac-/anything/, but:

  Homebrew installs the stuff you need <https://formulae.brew.sh/formula/> that Apple (or your Linux system) didn’t.

brew install tdsmith/ham/chirp

... just uses Homebrew to install the KK7DS Python runtime <http://www.d-rats.com/download/OSX_Runtime/KK7DS_Python_Runtime_R10.pkg> for Mac OSX, right? Will Homebrew still install that runtime into "the next release of MacOS", when "32-bit executables will no longer be supported"?