printk now supports boolean
life is easier if we just boot for now.

thanks to my new ISO build pipeline, this is easy to change.
Do a self-test when installing the PS/2 keyboard.
we can now print out pointers and NUL
why bother writing at 38k? what decade do we live in, steve?
printk supports 'c' directive: char
admit that we like L4
char devices have a ring buffer that can be written to and hang off of the fs_node_t in ->buffer