Any given URLs in the form of <domain>/archives/<6-digit post ID>.html now redirect to <domain>/archives/<1 to 6-digit post ID> – I had to change the default URL format from <yyyy>/<mm>/<dd>/<post-title>, which is a shame.
But that should do it!
Skinning is next. I guess it’s OK to leave the book look behind. I suppose I’ll start by rummaging for a pre-made.