Context/Project Idea: I'm currently developing a project that consists of a macOS application using Swift and a local Python backend that executes specific tasks such as processing data. The Python backend is the core of this project, while the Swift application is a mere interface to interact with it. These two project parts should be decoupled so the user can theoretically run their own backend and connect the Swift application to it. Likewise, the user should be able to connect to the shipped backend using, e.g. curl. Current plan: My main idea is to use launchctl to launch a launchd agent which runs the Python backend. The script launching the backend will generate an API key stored in a keychain access group. The Swift application can then get that key and access the backend. The user can always get that API key from the keychain if they want to connect to it programmatically. Here are the main questions I have currently: Python Interpreter Consistency: I'm exploring options such as cx_Freeze or PyInstaller to create a standalone Python executable for better system stability. Does anyone have experience with these tools in a macOS environment, or are there other reliable alternatives worth considering? Adding a Launchd Agent to Xcode: How can I add a launchd agent to my Xcode project to manage a Python executable built with cx_Freeze or PyInstaller? What steps should I follow to ensure it functions properly? Keychain Access for Launchd Agent: Is it feasible for a launchd agent to access a Keychain access group? What configurations or permissions are necessary to implement this? Thanks in advance!