Which phone model with a qwerty (preferably slide-out) keyboard, on which you can install Linux (not emulation)?

Question

linux

There are installation instructions for Nokia n900, but it seems to me that it will be quite slow. Can you suggest anything else?

Answer 1

Yes, it will slow down.
Of the modern ones, there are only prototypes for $ 1000-1500 with poor stuffing and without a GSM module (I'm not kidding).
The idea is not very good, Linux was on some phones, but these projects died as expected.