Linting a Python project, I was puzzled by the mysterious error: “found module but no type hints or library stubs” from mypy. The module was my own, with Pydantic definitions everywhere, so why the error? I was missing init.py files in some parent folders.

To make a quick voice recording with OS X: open Quick Time Player, under the File menu there is a “New. Audio Recording” entry. It automatically saves .mov files in your Movies folder, which you can then open in Audacity or the editor of your choice.

Where to put unix based scripts on a Mac without them getting in the way? Simple: create a bin folder in your home directory, and add it to the path:
export PATH=~/bin:$PATH