The SDK maintains a fork of `breakpad` and `crashpad` [here](https://github.com/getsentry/sentry-native/tree/2f7fffab48743d228a8e8728567572af4c533012/external). These could be replaced by a backend created and maintained by Sentry. POC: https://github.com/getsentry/sentry-native/pull/1433
