I haven't found any yet, but it's likely out there given how heavily & directly the open-source GrapheneOS project relies on it. It's notable that GrapheneOS o

I haven't found any yet, but it's likely out there given how heavily & directly the open-source GrapheneOS project relies on it. It's notable that GrapheneOS only currently supports the Google Pixel 4 and 5. e.g. Peter Easton wrote a short piece here https://github.com/Peter-Easton/GrapheneOS-Knowledge/blob/master/Old%20FAQ%20Draft/faq.html#L397-L441 https://github.com/Peter-Easton/GrapheneOS-Knowledge/blob/ma...