The product only deserves to exist if it beats the current hack in the exact moment of ordering. Everything below is built around that discipline.
Saltydog is a mobile-first preference card for foreigners in Vietnam who want exact coffee orders without sugar, condensed milk, or translation mismatch. It starts as a two-tap barista card for a daily ritual pain point, then expands into a broader preference translator for food and drink constraints.
The behavior already exists. People are already handing screens to baristas. The opportunity is to beat Google Translate on speed, clarity, and repeatability.
If Saltydog is not materially faster and clearer than a saved note or Translate screenshot, it dies. The product only wins if it becomes the lowest-friction path to getting the drink right.