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TetraS
Journal

Notes from the engineering desk

Field notes on digital transformation, cybersecurity and on-premise AI — drawn from the work we do every day.

60 Entries
Sovereign AI in Vietnam: what businesses actually get to decideCornerstone
Latest05.08.2026

Sovereign AI in Vietnam: what businesses actually get to decide

Sovereign AI is not about owning a supercomputer. The infrastructure–model–data layers, which one businesses truly control, and three options with the price of each.

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Six conditions for correspondence software to interconnect with State and Party document systemsBuyer's guide
07.27.2026

Six conditions for correspondence software to interconnect with State and Party document systems

Interconnecting with the National Document Interchange Axis, an LGSP or Party systems is not a flip of an integration switch. A checklist of six technical, legal and security conditions — to audit your system or set tender criteria.

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Internal training and employee-assessment software: how to chooseBuyer's guide
07.24.2026

Internal training and employee-assessment software: how to choose

Vietnam’s internal-training software market lumps together very different kinds of tools. This guide separates full-suite LMS, quiz tools, free forms and open-source self-hosted platforms, with seven criteria to choose by size, budget and data needs.

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Correspondence Management Software in Vietnam: A Practical ComparisonNews
07.22.2026

Correspondence Management Software in Vietnam: A Practical Comparison

Not a popularity ranking but a comparison on four criteria that actually matter: Decree 30, valid Vietnamese digital signatures, on-premise vs SaaS, and customization. A walkthrough of the common solution categories and who each fits.

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Securing Dokploy: adding a WAF and IPS on the server itselfDeep dive
07.20.2026

Securing Dokploy: adding a WAF and IPS on the server itself

A default Dokploy install runs fine but is not safe: Traefik is not a WAF, Docker bypasses UFW, DNS-only domains leak the origin IP. Three gaps and how to close them on your own host.

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The on-premise eOffice roadmap: from survey to go-liveBuyer's guide
07.09.2026

The on-premise eOffice roadmap: from survey to go-live

eOffice is not sign-up SaaS. The five real deployment phases across 3–6 months, what makes it fast or slow, and what your organization should prepare.

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Google’s Open Knowledge Format (OKF): packaging knowledge for AI agents — what we learned deploying itNews
07.07.2026

Google’s Open Knowledge Format (OKF): packaging knowledge for AI agents — what we learned deploying it

Google just published OKF — an open standard that turns organizational knowledge into a Markdown directory agents read directly. We took the samples apart and pulled out deployment lessons for several domains.

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WebMCP: we made tetra.vn callable by AI agentsNews
07.06.2026

WebMCP: we made tetra.vn callable by AI agents

tetra.vn now exposes tools to AI agents via the WebMCP standard: agents (Claude Code, Cursor…) can call the site for products, knowledge and navigation instead of scraping HTML. The next step of AEO — and how an agent-ready site differs from an ordinary one.

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Angler: an open-source search, crawl & research gateway you self-hostNews
07.05.2026

Angler: an open-source search, crawl & research gateway you self-host

Angler is a free, MIT open-source search + crawl + research gateway you self-host: web access for AI agents (Claude Code, Cursor…) over MCP or the Firecrawl SDK, turning the web into clean, bias-resistant markdown for research and AI agents.

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Electronic labor contracts under Decree 337: the national platform goes liveNews
07.02.2026

Electronic labor contracts under Decree 337: the national platform goes live

From 1 July 2026 the national e-labor-contract platform goes live; Decree 337/2025 gives e-contracts the legal value of paper. Signing, ID rules and what HR must do.

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