[granular]

Some files (besides INSTALL and TUTORIAL) you might consider including with the distribution:

* README: what it is and why

* ChangeLog

* LICENSE

* HACKING: instructions for users who might like to contribute to Arc

* FAQ: answers to questions that users keep asking about

* TODO: what you plan on working on next

[granular]

Edit: Ok. Just had another look at http://www.paulgraham.com/arc0.html , specifically the part about changing stuff without even keeping track of the changes. So, I rescind my suggestion for the ChangeLog.

You also say, "full of hacks and note-to-self comments about fixing them.", so there goes the possible TODO file too. :)