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For most of modern software history, choosing a programming language meant navigating limitations.Ecosystems, tooling quality, runtime guarantees, and team experience forced trade-offs. Language decisions were as much about constraints as they were a...
While developing an e-commerce system, I once designed a model called DeliveryDateConstraint to represent delivery restrictions decided by sellers. At first, it looked simple enough: each product had its own shipping rule.But later I realised that cu...
Deck https://decks.yasaichi.com/20250524/pragmatic-functional-programming-in-typescript Abstract Functional programming concepts such as pure functions, immutability, and monads are increasingly familiar to TypeScript developers, yet many struggle ...
In modern software development, we often face three types of risks: Known knowns: issues we are aware of and understand. Known unknowns: issues we know exist but lack full understanding. Unknown unknowns: issues we neither know exist nor understan...
In many applications, a primary key must be unique and hard to guess. Developers often choose UUID v4 for these benefits. However, there are trade-offs in performance. Pros and Cons of Using UUID v4 as a Primary Key UUID v4 gives global uniqueness an...
The rise of artificial intelligence in software development brings many benefits, but also some challenges. One problem is that AI models sometimes slow down the use of new and better technologies. This happens because AI tools are trained with data ...
In the ever-evolving landscape of web development, choosing the right technology can be challenging. As I work on a project re-vamping an API gateway, I've recently explored Deno as our JavaScript runtime, and I'd like to share my insights from our p...
Deck https://decks.yasaichi.com/20241123/type-safe-lightweight-ddd-with-effect-schema Abstract At EARTHBRAIN, we have adopted "Effect," an emerging TypeScript library, to develop an API gateway. This innovative library can separate main concerns fr...