7-Eleven, via foursquare
“Five 1” - Seconds Before Awakening
Individual posts are edited in Markdown format, using the MacDown editor on a Macintosh. They are translated to HTML via a shell script that does some reformatting and vets the output using Tidy. Images are edited, when necessary, using Acorn and NetPBM. Autodesk Graphic is used for vector graphics.
Most of the not-quite dynamic sidebar content is produced by really small Python scripts running from cron, generating tiny HTML fragments that are transcluded into the pages at rendertime. This allows the flexibility of dynamic page generation with the benefits of static performance. More discussion of this technique here.
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Here's a great idea: Googlecooking. Take a list of ingredients you have around the house, search for them in Google, and prepare the most promising sounding recipe it produces. It's such a brilliantly simple idea.
No problem is insoluble in all conceivable circumstances.