Is /storage/flash a safe place for a very small file?

Hello, I am creating a React/Express app for our Brightsign HD1024. We need to store configuration data on the device. This would be a small JSON file. I am able to create the file and interact with it at /storage/flash/config.json, but I am curious as to whether or not any system process or anything I don't know about or expect will ever modify, delete, or interact with files I create in this storage location in any way. Thanks in advance!


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