F-Droid, a free and open-source app store, is concerned about Google's new policy requiring Android developers to register centrally with Google, which could end the F-Droid project and other free/open-source app distribution sources. The registration process involves paying a fee, agreeing to terms and conditions, and uploading personally identifying documents. F-Droid argues that this policy is not about security, but about consolidating power and control over the Android ecosystem. The policy could restrict competition and limit user freedom, and F-Droid is urging regulators to safeguard the ability of alternative app stores and open-source projects to operate freely.