Requirements for an official NetBSD wiki:

* **UI:** pleasant web editing with preview and diff
* **appearance:** customizable with CSS and templates
* **access control:** publicly readable, editable by developers only, an area readable by developers only
* **web authentication:** Kerberos
* **implementation language:** not PHP
* **revision control:** yes, preferably not something homegrown, even more preferably CVS
* **page rendering strategy:** compiles static pages that can be mirrored

Before selecting [ikiwiki](http://ikiwiki.info/), I evaluated the following:

[[!table data="""
Software|Language|Versioning|Comments
[Sputnik](http://spu.tnik.org)|Lua|git or filesystem|looks cool
[Foswiki](http://foswiki.org)|Perl|RCS|fork of TWiki, complex install docs, complex software, checkered security history
[Kwiki](http://www.kwiki.org)|Perl|don't remember|old version was so-so, the ambitious rewrite never happened
[MojoMojo](http://www.mojomojo.org)|Perl|SQL|featureful
[MoinMoin](http://moinmo.in)|Python|filesystem| 
"""]]

In my opinion, ikiwiki is the best fit: written in Perl, with a simple web UI and several ways of restricting access, it not only renders arbitrary hierarchies of static pages, but also is designed to be used in concert with a variety of external revision control systems.

This one's [[wiki/todo/done]]. --[[schmonz]]