Hi, I'm Nhật Nguyên.

I build minimal systems and write to clarify what I learn.

Featured

OAuth 2.0 Explained Work in progress
Work in progress notes on the OAuth 2.0 mental model and common flows.
Building a Durable Execution Engine Work in progress
Work in progress notes on orchestrating long-running tasks with failure recovery.
The Outbox Pattern Work in progress
Notes in progress on reliable event publication and transactional boundaries.
REST API Design Workflow February 20, 2026
Workshop deck covering a practical workflow for designing REST APIs.
Bridging the Air-Gap: A Dual-Repo Strategy for Enterprise Development February 15, 2026
A practical dual-repository Git workflow for developing locally and delivering code into locked-down enterprise environments.

SQL Window Functions Work in progress
Early notes on analytic functions, partitions, and row-aware aggregation.
Notes on Equality Comparison in Java March 12, 2026
Personal notes on Java equality, covering primitives, references, and the difference between `==` and `equals()`.

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2 published blog post(s) in the current migration.