tree is the name given to the file that contains all files.
it is the root of the namespace axal.
it is represented as: /
that is, the empty list
most files in the tree are owned by you, the user.
but there are 2 files that do not belong to you:
/~/system : code for the runner itself
/~/manual : the manual
each time a new version of hawk is released from ~dister-migrev-dolseg, the manual and system files get overwritten.