How I Added AI to My App: A Practical Guide
SMRTR summary
Building AI-powered transaction categorization for a Kenyan finance app, this walkthrough covers a layered approach: keyword classifiers and user rules handle 80% of cases, with Gemini 2.5 Flash only firing as a last resort. Key lessons include stripping PII before prompting, using structured JSON output, caching by counterparty, and failing gracefully so AI never breaks core functionality.
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