rpm-ostree: You may invoke the real rpm binary in /usr/libexec/rpm-ostree/wrapped/rpm. rpm-ostree: Continuing execution in 5 seconds. error: can't create transaction lock on /usr/share/rpm/.rpm.lock (Read-only file system) error: https://download.sublimetext.com/sublimehq-rpm-pub.gpg: key 1 import failed.

error: Note: This system is image (rpm-ostree) based. Package search is not yet implemented. For now, it's recommended to use e.g. toolbox and dnf search inside there.