Click any part of the page to see what it does · updated 23 Aug
dutyfreeprofessor.com
Click anything in the page on the left and this panel explains what it
is, whether it exists yet, and what it would take to build.
Rough effort by phase
Built so far (the proof of concept)done
Next phase — price history, airport guides, more airports~6–10 days
Later — editorial, alerts, accounts, map~15–25 days
Running cost once live~$25–120/mo
Days are build effort, not a quote — rates and scope are Rian's to set.
Running cost is hosting plus data collection; it rises with how many airports and how
often prices refresh.