About Thái Duy

Building practical systems

I'm Thái Duy, an operator-builder focused on practical systems for SME operations. My work connects ERPNext, n8n automation, edge gateways, zero-trust networking, and local-first analytics.

I prefer showing working systems and their limits over listing isolated technologies. The projects on this site are built around real workflows: business documents, inventory movement, attendance at the edge, network access, and operational data.

How I work

I start with the process, make the data traceable, and keep the infrastructure understandable. That means using explicit boundaries, reversible changes, scoped credentials, audit trails, and tests that include failure cases as well as successful paths.

The ecosystem

The n8n2erpnext nodes connect ERPNext and Frappe modules to n8n. Edge Attendance Gateway brings resilient attendance capture closer to the workplace. Zero Trust Syncd maps organizational intent from ERPNext into governed NetBird access. LightBI is being developed as an evidence-governed Business Understanding Engine for operational data.

Some parts are live-tested, some are still being built, and some remain research. I keep those states visible so the work can be evaluated honestly.

About the tools

AI is not a current feature of these products. It is only one possible future assistant, while the current systems rely on deterministic workflows, explicit contracts, and human review. AI-assisted development can help me move faster, but it does not replace operational judgment or become the source of truth.

This site is the public record of that work: the projects, the technical notes, the infrastructure, and the decisions behind them.