How can I modify the package.json file to support unofficial build targets on Fitbit Versa 4

1. Identify the Build Target for Versa 4: The Fitbit Versa 4 is associated with the build target "hera"[4][8]. You will need to ensure this target is included in your `package.json`.

2. Edit the `package.json` File:
- Open your project's `package.json` file in a text editor.
- Locate the `"buildTargets"` section. If it does not exist, you will need to add it.
- Add `"hera"` to the list of build targets. For example:

json
     "buildTargets": [
       "hera"
     ]
     

json
     "buildTargets": [
       "hera",
       "rhea"
     ]
     

3. Update Dependencies: Ensure that your project uses compatible versions of the Fitbit SDK and CLI. For unofficial build targets, you might need to use a custom or unofficial SDK package. For example, you can use an unofficial drop-in package for `@fitbit/sdk-build-targets` as mentioned in[2][4].

Here’s how you might update your dependencies:

json
   "devDependencies": {
     "@fitbit/sdk": "~6.2.0-pre.1",
     "@fitbit/sdk-cli": "~1.8.0-pre.10"
   }
   

4. Install Dependencies: After updating your `package.json`, run the following command in your terminal to install the dependencies:

bash
   npm install
   

5. Build Your App: Use the Fitbit CLI to build your app. You can do this by running:

bash
   npx fitbit build
   

6. Sideload the App: To sideload your app onto the Fitbit Versa 4, you will need to enable developer bridge on your device and use the Fitbit CLI to install the app. This process involves setting environment flags like `FITBIT_QA_COMMANDS` and using the `fitbit$ build-and-install` command as described in[2].

Additional Considerations

- Unofficial SDKs and Risks: Using unofficial SDKs or build targets can introduce risks, such as app instability or unexpected behavior. Always test your app thoroughly before distributing it.
- Environment Flags: Ensure you have the necessary environment flags set, such as `FITBIT_QA_COMMANDS=1`, to enable developer features on your device.
- Device Preparation: Make sure your Fitbit Versa 4 is properly connected and configured for developer mode, with USB debugging enabled.

By following these steps, you should be able to modify your `package.json` to support unofficial build targets for the Fitbit Versa 4.