I've had good experience with PyInstaller across macOS, Windows, and Linux. I've mostly used PyQt5, and it's able to package that without any extra effort. I

I've had good experience with PyInstaller across macOS, Windows, and Linux. I've mostly used PyQt5, and it's able to package that without any extra effort. I use the "package it all into one file" option: it's a little slow to start, but for my purposes (primarily, longer-running applications) that's ok.