GrapheneOS: Private and Secure Mobile OS

For my de-Google and de-enshitification comrades. GrapheneOS is a non-profit, open-source mobile OS focused on privacy and security, with full Android app compatibility, founded in 2014 (formerly CopperheadOS). Its biggest features include hardened sandboxing, exploit mitigations, and an improved permission model — plus granular controls like Network and Sensors permissions — designed to eliminate whole classes of vulnerabilities while keeping the user experience smooth.