but it says "Our goal is to provide a single platform for application developers, allowing a single code base to run on all Ubuntu Touch devices. Running apt on Ubuntu Touch is possible, but it's only for developers because it will break future OTA update push." Doesn't apt work in theory?

W: Not using locking for read only lock file /var/lib/dpkg/lock
E: Unable to write to /var/chache/apt/
E: The package lists or status file could not be parsed or opened.

I run

sudo apt install vim

but failed