#fintech
4 posts. Other tags: #llm · #evals · #agents · #nodejs · #typescript · #tutorial · #healthcare
One shared TypeScript library for every service, without a god library
At KitchenSync I designed a shared TypeScript library with more than 16 modules used across the whole platform. Here's how to keep something like that useful instead of dangerous.
Reading bank notification emails to track spending in Colombia
Colombian banks don't offer open APIs to regular developers, so Nora reads the transaction alerts they already send by email. Here's how the pipeline works.
Rules as data: onboarding customers without shipping code
At KitchenSync every restaurant had its own accounting rules. Moving those rules out of code and into configuration changed how we onboarded customers.
Rules first, LLM second: categorizing Colombian bank transactions
In Nora, my personal-finance app, the LLM is the last resort, not the first step. Here's the pipeline and why every AI answer becomes a rule.