tva

Insights

Hetzner Cloud in Late 2026: Plans and Prices for Self-Hosting n8n, Windmill, Twenty and Ollama

Hetzner raised cloud prices on 15 June 2026, and in October 2026 its cheapest shared plans are listed as not available. What the current lineup costs, which plan fits n8n, Windmill, Twenty and Ollama, and what our earlier self-hosting guides assumed at the time.

Google Ads API Access in 2026: Cloud Projects Replace Developer Tokens

Since 9 September 2026, Google Ads API access is granted per Google Cloud project instead of per developer token. What changed, how to set up access today, and what the June 2026 setup guide still gets right.

TaxStayTracker: A Clearer Record of Your Travel Days

Meet TaxStayTracker for iPhone and iPad: build a reviewable country-stay history, check day counts, and export PDF or CSV records with local-first privacy.

Amazon Seller Data Pipelines in 2026: SP-API Operating Controls and Release Criteria

A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.

AI Coding Agents in 2026: Evaluating Autonomy, Context, and Verification

A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.

React Deployment in 2026: Immutable Builds, Traefik, and Zero-Downtime Releases

A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.

Multi-Tenant Docker Without Accidental Shared Fate

This production-oriented follow-up turns current vendor guidance into operating controls, migration decisions, and verifiable release criteria.

Local AI Assistants in 2026: Ollama, MCP, and Tool Boundaries That Hold Up

A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.

Self-Hosting Windmill in 2026: Workers, PostgreSQL, Isolation, and Safe Upgrades

This production-focused follow-up turns current vendor guidance into operating controls, migration decisions, and verifiable release criteria.

WordPress 7 and Elementor Performance: Database Health Beyond Revision Cleanup

This production-focused follow-up translates current vendor guidance into operational controls, migration decisions, and verifiable release criteria.

CloudPanel on Modern Hetzner: A Measurement-First Performance Guide

Optimize CloudPanel on Hetzner with MySQL and PHP-FPM tuning, performance monitoring, and controlled deployment practices. This guide pairs configuration changes with measurable results, rollback plans, and ongoing verification.

Traefik v3 for Docker in Production: HTTPS, Provider Security, and Observability

A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.

n8n Webhooks in Production: Reverse Proxies, Queue Mode, and Reliable Ingress

This production-oriented follow-up turns current vendor guidance into operating controls, migration decisions, and verifiable release criteria.

Self-Hosted n8n 2.x: Diagnose Execution Data Limits and Raise Payload Size Safely

A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.

Authority Before Autonomy in Enterprise AI

Enterprise AI does not become safe or useful through a single autonomy setting. Authority must be earned action by action: observe, recommend, simulate, write with approval, then operate within measured limits. We use this progression to connect technical capability with accountable operations.

What Breaks in International Expansion

International expansion fails where systems meet: tax and customs, product data and local rules, payments and reconciliation, promises and physical logistics. We treat market entry as an exercise in defining and operating those boundaries.

Product Data Validation: AI Where Needed, Rules Elsewhere

Product data is an attractive enterprise AI use case because inputs are messy and the desired output appears structured, but a model that can read a document or compose a description should not decide whether a record is compliant. Models extract and formulate; traceable rules validate and decide.

The Data Readiness Problem in Enterprise AI

Enterprise AI programs stall when organizations cannot establish what their data means, whether it is current, or who may act on an output. Our six-part readiness framework covers provenance, freshness, duplicates, baselines, action rights, and outcome measurement.

Google Ads API: Setup, Authentication, Read and Write Operations

A technical walkthrough of programmatic Google Ads access, covering MCC configuration, OAuth 2.0, developer token levels, the google-ads Python library, GAQL queries, and validated write operations.

Agent Harness Design: Choosing the Right Model

Model routing starts with privacy and residency requirements, then verified task success and output quality, and only then tokens, latency, and cost. Local models can be effective with stronger decomposition, retrieval, and deterministic verification.

Reference Architecture for a Thread-Based AI Operations Layer

A technical implementation note for a thread-based AI operations layer: one stable user-facing interface, explicit work contexts, typed state, deterministic execution, authorization boundaries, verification, and restore-tested portability.

What Physical Operations Teach About AI Automation

AI automation becomes reliable when it is designed like an operating system for real work: standard work creates throughput, explicit quality boundaries protect the result, and exceptions and handoffs determine whether the system survives contact with reality.

Tuning a Hermes-Style Agent That Grows With Your Project

A Hermes-style AI assistant that works in direct messages can encounter specific failure modes in a multi-user group chat: empty-reply crashes, miscalibrated progress notifications, race conditions, stderr deadlocks. This guide documents eight tuning patterns with the code to implement each, applied to a minimal Hermes-style assistant built on the Claude Code CLI.

Scaling a Telegram AI Assistant from Solo to Team

Scaling a Telegram AI assistant from solo use to a team workspace requires more than just adding user IDs to an allow-list. This guide covers the full mechanics — allow-list formats that survive Docker restart pitfalls, group setup with correctly configured triggers, and the privacy trade-off most teams overlook before going multi-user.

Setting Up a Mailbox for Your Project-Specific AI Agent

Your project-specific AI agent eventually needs an email address — for password resets, vendor correspondence, or because the bot becomes the operational front door. This guide covers the dedicated subdomain mailbox pattern with DKIM, SPF, and DMARC, using one DNS provider and a separate mail provider, with end-to-end API calls and a self-loopback verification path.

Building a Project-Specific AI Assistant via Telegram

Build a project-specific AI assistant on Telegram using the Claude Code CLI in a self-hosted container, with one instance per mandate, seven architecture decisions, a full Compose file and Dockerfile, and a step-by-step setup guide.

From Marketplace Data to Reproducible Decisions

Marketplace data creates economic value only when teams define the decision, metric, intervention, guardrails, and readback as one reproducible system. We outline a platform-neutral operating model that turns recurring analysis into controlled action.

From Niche Demand to Enterprise Procurement

Niche demand can become a durable enterprise business when distribution, category knowledge, and procurement-ready operations are designed as one system. We examine what must change when a specialist offer moves from being easy for an individual to buy to being safe for an organization to buy.

Reducing Amazon FBA Return Rates Through Systematic Data Analysis

Amazon FBA return rates vary widely by category, and the cost can concentrate in a small fraction of the catalog. We built a return analysis pipeline that surfaces the dominant return reason per SKU, calculates probability-weighted margins, and feeds the result into advertising threshold calculations.

Fixing SEO After a WordPress-to-Astro Migration: Redirect Chains, Sitemaps, and GSC Cleanup

Self-hosted Astro sites that migrated from WordPress often have redirect-chain issues, duplicate sitemaps, and stale Google Search Console configurations. This guide covers how to diagnose and fix each problem using curl, Plausible analytics, and GSC data.

n8n vs Zapier: A Builder's Honest Review

We have used both n8n and Zapier in production. Not for evaluation purposes — we use them for real automation workloads across different parts of the business. This puts us in a position to give a specific account of where each tool performs well and where each one creates problems, based on the kinds of workflows that actually matter for a small technical operation rather than the comparison frameworks that most reviews use.

The Self-Hosting Decision: When SaaS Costs More Than Your Own Infrastructure

Self-hosting versus managed services requires more than a subscription fee comparison. Operational time, security burden, team stability, and instance count determine total cost over a realistic horizon.

GitHub Actions for Self-Hosted Deployment Pipelines

GitHub Actions has well-documented deployment integrations for cloud PaaS platforms such as Vercel, Railway, and Fly.io, but much production infrastructure runs on self-hosted VPS instances or bare-metal servers with a fundamentally different deployment model. This post covers our patterns for deploying Docker Compose applications to a self-hosted Hetzner server via GitHub Actions, including secrets management and rollback.

From Internal Tool to SaaS: Automating Bank Statement Downloads

A script that downloads our Wise bank statements grew into a containerized service with email notifications. Evaluating it as a SaaS product exposed the security, engineering, and operational decisions needed to serve other businesses responsibly.

Building a B2B Product Catalog with Certification Pages

B2B buyers do not browse product catalogs the way consumers do. They arrive with a specification, a compliance requirement, or a procurement checklist. A product page that leads with lifestyle photography and marketing copy will not serve them. But in reality, most e-commerce platforms are built around consumer patterns, and adapting them to serve B2B purchasing behavior — particularly around product certifications — requires deliberate structural decisions.

Solo Operations at Scale: Managing Dozens of Projects with a Small Team

As a small operation grows, active projects can exceed what the team can hold in working memory, with marketplace orders, infrastructure maintenance, feature development, and client questions all competing for attention. Every project requires real work, but there are not enough hours to give each one the same level of attention.

WMS Integration for Small E-Commerce

The question of when a warehouse management system is worth integrating comes up earlier than most small e-commerce operations expect. Spreadsheets work well until they don't — and the inflection point is usually not order volume but order complexity: multiple SKUs with variant tracking, bundles, backorders across multiple fulfillment locations, or the need for accurate available-to-promise figures at checkout.

Distribution Engineering: Building Systems That Sell So You Don't Have To

Most business growth frameworks assume that demand must be created: you build a product, then introduce it to people who do not yet know they want it. In much of commerce, however, demand already exists, and the challenge is positioning your business to capture it rather than creating it from scratch.

Stripe Checkout Integration for International E-Commerce: Edge Cases and Lessons

Stripe's documentation is genuinely excellent, and the initial integration usually works on the first attempt. But in reality, international e-commerce surfaces a class of problems the quickstart guide doesn't cover: webhook delivery reliability across infrastructure restarts, the subtle mechanics of refunds in non-settlement currencies, and the operational overhead of managing API keys across multiple environments.

SEO Fixes That Actually Move the Needle: Canonicals, Sitemaps, and Trailing Slashes

These specific SEO fixes produced measurable movement in indexing and rankings: resolving canonical URL inconsistencies, filtering sitemaps, normalizing trailing slashes, and addressing GSC indexing issues. The post describes the patterns we observed over 60-90 day windows and does not publish site-level figures.

Building an Amazon Data Warehouse with FastAPI and TimescaleDB

Amazon's SP-API provides access to a substantial volume of operational data — orders, inventory, settlements, catalog performance — and the separate Amazon Ads API adds advertising data. But in reality, the data is only useful in a form you can query. Amazon's own reports are transient, rate-limited, and not designed for the operational questions that matter most to a seller managing a multi-marketplace business.

Responding to CVE-2025-55182: Our Experience with the React Server Components Vulnerability

On December 3rd, 2025, the React team disclosed CVE-2025-55182, a pre-authentication remote code execution vulnerability in React Server Components with a CVSS score of 10.0. This post documents our response to a BSI notification and our checks for compromise.

Our Shopify Exit Strategy: Evaluating Headless E-Commerce Alternatives

Why we closed our Shopify store and evaluated Medusa v2, Saleor, and Commerce.js as alternatives. What Shopify got right, what pushed us away, the evaluation criteria, and what the migration path involves.

One Website in Dozens of Languages: Practical i18n for E-Commerce

Internationalizing an e-commerce site for dozens of languages requires decisions about translation pipelines, URL structures, hreflang implementation, and RTL support, as well as cultural adaptation that translation tools alone do not handle.

Flatfile Automation: Managing Product Listings Across Multiple Amazon Marketplaces

Amazon's flatfile system is the most complete interface for bulk listing management, and one of the least well-documented for multi-marketplace operations. Each marketplace uses a different template version, enforces different field requirements, and applies different validation rules — often for the same product in the same category.

Multi-Marketplace Data Pipelines: Managing Seller Accounts Across Regions

Running data extraction across Amazon US, JP, and DE requires handling different report formats, currencies, and date conventions. We explain a config-driven architecture with per-marketplace YAML state and registry-based report definitions.

Dozens of Backend Tests in One PR: Our Testing Strategy for FastAPI

We added a comprehensive test suite for a FastAPI backend in one focused pull request, using transaction rollback fixtures, respx HTTP mocks, and dependency overrides for authentication tests. This post explains the patterns and assesses the return on adding tests late rather than never.

Reddit Pixel Tracking for Shopify: Server-Side Implementation with Conversions API

Browser-based Reddit pixels face ad blockers, privacy settings, and iOS tracking restrictions. This guide shows how to implement server-side conversion tracking for Shopify with the Reddit Conversions API using Docker, webhooks, HMAC verification, and logging.

Automating Amazon Seller Central Data Extraction: A CLI-First Approach

A CLI tool extracts dozens of report types from Amazon Seller Central using deterministic file naming, YAML state tracking, and a two-pass workflow for overnight reports, with browser automation where the API falls short.

Expanding Amazon FBA to New Marketplaces: A Data-Driven Framework

When an Amazon business performs well in one marketplace, expanding is usually the right instinct. But most expansion decisions rely on impressions rather than structured evaluation — and the differences between markets can make a launch without systematic scoring consume months of effort for negative returns.

Multiple AI Coding Tools, Hundreds of Sessions: An Honest Comparison

After hundreds of real sessions across Claude Code, Cursor, Gemini CLI, OpenCode, and Qwen Code, here is what each actually excels at — and where each quietly fails.

Building Production-Ready Data Infrastructure for Amazon Sellers: Introducing tva-fetch

Amazon sellers need reliable access to orders, inventory, settlements, returns, and catalog data. tva-fetch handles SP-API rate limits, credentials, and report processing in a PostgreSQL-based data warehouse that gives sellers control over their data and analytics.

tva-fetch | How Complete Data Ownership Transforms Amazon Selling Operations

For Amazon sellers, data ownership means more than dashboards: tva-fetch stores SP-API reports and notifications in a database you control, enabling custom analysis of inventory, settlements, returns, and catalog performance.

When Docker Auth Breaks Mobile Sign-In: A Cross-Platform Bug Story

Google and Apple Sign-In failed on mobile because the Supabase auth container’s PostgreSQL search_path did not include the extensions schema. This incident traces the debugging process and explains how differences between OAuth flows exposed the configuration error.

Handling Shadow DOM in Automated Browser Testing

Shadow DOM provides genuine encapsulation for web components, and that same encapsulation makes it deeply problematic for automated testing. Most automation frameworks were built around document.querySelector — and Shadow DOM is specifically designed to be invisible to it.

Claude Skills: Anthropic’s Answer to the AI Customization Problem

Anthropic’s Skills let organizations package expertise into reusable modules that Claude loads on demand. The feature combines instructions, resources, and executable scripts to make specialized workflows easier to share across teams.

Building Tax Compliance Tools That Actually Work

The 183-day rule sounds simple, but tracking stays across multiple jurisdictions with calendars and spreadsheets does not fit the way mobile professionals live and work. TaxStayTracker combines automated location tracking, manual conflict resolution, and exports for tax residency record-keeping.

Over a Hundred Docker Containers: Our Monthly Health Check Routine

Running more than a hundred Docker containers in production is not unusual if you have built up services gradually over several years. What becomes difficult is not deploying these containers — it is maintaining them month after month without a gradual buildup of disk pressure, silent failures, and expired certificates.

Complete n8n Self-Hosted Troubleshooting Guide 2025: Fixing Execution Data Size & Webhook Problems with Traefik

This guide combines fixes for large execution data and webhook URL problems in self-hosted n8n deployments. It covers Traefik configuration, task runners, Docker Compose examples, and testing with n8n version 1.115.2 in October 2025.

Building AI Agent Skills for Domain-Specific Business Workflows

General-purpose AI coding agents handle a wide range of tasks, but providing domain context becomes repetitive as workflows grow more complex. Reusable skills package domain knowledge and instructions for recurring business tasks.

Deploying React Applications to Production: Complete Docker Setup with Traefik Reverse Proxy

This guide documents a real React deployment debugging session: the container was running, Traefik labels were set, and DNS was resolving, yet the application returned persistent 404 errors. It covers production Docker deployment, reverse proxy configuration, and automatic SSL.

Bulgaria’s Euro Adoption: What App Developers Need to Know About the January 2026 Currency Transition

Bulgaria will adopt the euro on January 1, 2026, replacing the lev. App developers serving the Bulgarian market need to prepare for price conversion, dual-currency displays, and changes to financial reporting and refund processing.

US Port Service Fees: What October 2025 Means for Global Supply Chains

Beginning October 14, 2025, the US Trade Representative will implement a phased port fee structure targeting Chinese-owned, Chinese-operated, and Chinese-built vessels entering US ports, with implications for freight costs and global supply chains.

Browser Automation at Scale Without Getting Blocked

The tutorial ecosystem for Playwright and Puppeteer is extensive. What it largely skips is what happens when you point that automation at a production website that actively doesn't want you there – and what it takes to run it reliably across weeks and months rather than an afternoon proof of concept.

Closure Tables for Relationship Calculation

Family relationship queries — 'are these two people related?', 'what is the degree of separation?', 'who is the common ancestor?' — are surprisingly hard to answer efficiently with standard adjacency list storage. Closure tables solve this by trading write overhead for dramatically faster reads. This post covers the table structure, the SQL for LCA queries and degree-of-separation calculations, and the performance difference that makes closure tables the right choice for read-heavy relationship graphs.

Disaster Recovery for Self-Hosted Services: Our Backup Strategy

When you self-host Supabase, a CRM, a DAM, and a Git server on a single machine, you need a backup strategy that accounts for the failure of that machine. Our strategy combines pg_dump orchestration for multiple PostgreSQL instances, staggered scheduling to avoid I/O contention, encrypted uploads to object storage, and regular restore testing.

Preventing Token Refresh Race Conditions in Single-Page Applications

Random logouts and sporadic 401s on authenticated routes often have the same cause: concurrent API calls detect an expired token and independently attempt to refresh it. This post covers the singleton promise pattern, the interceptor queue approach, and how this failure mode manifests in Supabase-backed applications.

ReactFlow for Family Tree Visualization

A family tree is a graph. The data is a set of nodes connected by typed edges — parent, spouse, sibling — and the visualization problem is how to lay that graph out intelligibly at different scales. ReactFlow provides the rendering infrastructure; the interesting decisions are in the custom node types, the Dagre layout algorithm, the edge styling for relationship types, and the performance strategies needed when trees grow beyond a few hundred nodes.

tva at MEDICAL FAIR THAILAND 2025: Connecting Medical Innovation Across Southeast Asia

tva will participate in MEDICAL FAIR THAILAND 2025, Southeast Asia’s premier medical and healthcare exhibition, to discuss international expansion, supply chain optimization, and regulatory compliance for medical technology companies across ASEAN markets.

tva at CMEF Guangzhou 2025: Bridging Healthcare Innovation Across Asia

We’re excited to announce tva’s participation in CMEF (China International Medical Equipment Fair) taking place September 26-29, 2025, in Guangzhou. As one of the world’s leading medical equipment exhibitions, CMEF offers an unparalleled platform for healthcare innovation and international collaboration across the entire medical industry chain.

WooCommerce Performance Optimization: From 8 Seconds to 0.2 Seconds of Load Time

E-commerce performance directly impacts revenue — a widely cited 2008 Aberdeen Group study reported that a one-second delay can reduce conversions by 7%. WordPress multisite networks running WooCommerce across multiple regions face exponentially more complex performance challenges.

Building a Customizable Widget Dashboard with TanStack Query

Most product dashboards are built the same way: one top-level component fires off ten API calls, waits for all of them, then renders everything at once. TanStack Query changes this by giving each widget its own independent data lifecycle — separate loading states, error boundaries, and refresh intervals — so the architecture holds up in production.

A Multi-Phase Security Audit: Hardening a Next.js Application

A security audit on a production Next.js application backed by Supabase is not a single pass through the code — it is a structured sequence of phases, each with its own scope and tooling. RLS policies, CSP headers, rate limiting, Zod validation, and timing attack protection each require a different lens. Here is how we structured the audit, what we found in each phase, and what we changed.

Building a Multi-Tenant Development Stack with Docker: Complete Setup for Scalable Client Deployments

Create a template-based, multi-tenant development environment with 16 containerized services that works offline and remains accessible online through subdomain-based routing. Automated deployments keep client environments isolated while you retain control of your infrastructure.

Final Days to Connect: tva at eCommerce Expo | DMEXCO Asia 2025

Connect with tva at eCommerce Expo | DMEXCO Asia 2025 on 8-9 October 2025 at Marina Bay Sands, Singapore. Explore how strategic guidance and hands-on implementation can help your business enter or expand in Southeast Asian markets.

DuckDB for Ad-Hoc Analytics: Turning Thousands of CSVs into a Dashboard

Amazon Seller Central exports traffic reports, conversion data, inventory summaries, business performance reports, and advertising breakdowns as CSV or TSV files that can accumulate into directories containing thousands of files over months and years. Importing them into a database is the standard response, but setting up and maintaining PostgreSQL for a read-heavy analytics workload with varying schemas can introduce more overhead than the problem warrants.

Building a Local AI Assistant with Web Search: MCP + Ollama Setup

Combine Ollama, mcphost, and a DuckDuckGo MCP server to build a local AI assistant with web search. This guide covers setup, configuration, troubleshooting, and possible integrations with self-hosted n8n workflows.

Widget Flags: Why ISO Country Codes Beat Locale-Dependent Names

The bug was subtle: an iOS widget displayed the correct country name in English but showed the wrong flag emoji in German. The root cause was a country lookup that used localized country names as dictionary keys — names that change depending on the device locale. Fixing it required rebuilding the lookup around ISO 3166-1 alpha-2 codes, and the lesson extends well beyond flags.

Self-Hosting a CRM: Why We Moved Away from SaaS

The SaaS CRM market is not short of options. Salesforce, HubSpot, Pipedrive, Zoho — each with its own pricing tier, feature matrix, and account manager ready to explain why the next tier up is exactly what your business needs. We used several of these tools over the years and found that, beyond a certain point, the value proposition inverts.

From SwiftUI Concept to App Store in Weeks

The distance from a SwiftUI prototype to a published App Store listing is shorter than most people assume, but it requires making decisions that feel premature when the code is still young. What to cut, when to cut it, how to handle the provisioning and review process, and what “done” actually means for a first release — these are the variables that determine whether weeks becomes months.

SIGN CHINA 2025 Update: Strategic Partnerships and Business Discussions Welcome

Following our initial announcement of tva’s participation in SIGN CHINA 2025, LED CHINA 2025 · Shanghai, and Digital Signage China 2025, we share updates on industry developments and expanded exhibition programming.

tva at IAAPA Expo Asia 2025: Strategic Partnerships in the Global Attractions Industry

tva will participate in IAAPA Expo Asia 2025, the premier trade show and conference for the attractions and leisure industry in the Asia-Pacific region, to explore collaborations with industry leaders and technology providers.

CloudPanel Performance Optimization: Maximizing Hetzner Cloud Server Performance for Lightning-Fast Website Delivery

Self-hosting multiple websites on a single server becomes more challenging when performance bottlenecks emerge. This guide covers CloudPanel server assessment, MySQL and PHP-FPM tuning, performance testing, and monitoring to optimize Hetzner Cloud server performance.

Database Cleanup and Recovery: Eliminating Elementor Performance Bottlenecks in CloudPanel Environments

Database bloat and lost MySQL credentials can disrupt CloudPanel-hosted websites. This guide covers access recovery, Elementor revision cleanup, and MySQL optimization to address database performance bottlenecks.

Supporting One of Europe’s Largest Infrastructure Projects: Protective Socks for Stuttgart 21

Specialized safety solutions, precision logistics, and innovative hygiene products support one of Europe’s most ambitious railway infrastructure projects. Our collaboration with Turmforum, representing the Stuttgart-Ulm Railway Project (Bahnprojekt Stuttgart-Ulm e.V.), combines protective socks with targeted supply chain solutions.

PunchOut Integration with WooCommerce: Streamlining B2B Procurement Through Intelligent Automation

Large enterprises increasingly use eProcurement systems like SAP Ariba, Coupa, and Oracle to automate purchasing. For suppliers, PunchOut integration with WooCommerce provides access to these workflows and helps them compete for enterprise contracts.

Privacy-First Analytics: Setting Up Self-Hosted Plausible with Google Search Console

Since GDPR took effect in 2018, most organizations have continued to use Google Analytics 4 because migration appears costly and the alternatives seem niche. Our move to self-hosted Plausible CE shows how it compares on deployment, Google Search Console integration, privacy, and performance.

tva at eCommerce Expo | DMEXCO Asia 2025: Connect with Us at Singapore’s Premier Digital Commerce Event

tva will participate in the inaugural eCommerce Expo | DMEXCO Asia 2025 on 8-9 October 2025 at Marina Bay Sands, Singapore, where technology providers and innovators will explore trends in e-commerce, retail, and marketing technology.

Digital Commerce Operations: Orchestrating Global E-Commerce Through Integrated Infrastructure

Over 22 years of e-commerce experience have taught us that sustainable growth depends on integrating digital infrastructure, international trade expertise, and business operations. At tva, we apply this approach to make complex multi-market operations more efficient and scalable.

Traefik Reverse Proxy: The Complete Self-Hosting Guide for HTTPS and SSL Automation

Self-hosting multiple applications becomes exponentially more powerful when you can run them under different domains with automatic HTTPS. Traefik is the modern reverse proxy that makes this possible, eliminating the complexity of manual SSL certificate management while providing production-grade routing capabilities.

Importing to Japan: Complete ACP Implementation Guide with Deductive Method Navigation & Cost Optimization

Learn how to implement Attorney for Customs Procedures (ACP) services, navigate the deductive method for customs valuation, and assess Japan Consumption Tax (JCT) obligations and import costs.

Swift 6 Concurrency: A Practical Migration Guide

Swift 6 turns concurrency warnings into errors, and the compiler is unforgiving about actor isolation boundaries. In practice, most of the migration work concentrates in a small number of patterns: ObservableObject classes that mutate published properties from background tasks, delegate callbacks that aren't on the main actor, and Task closures that capture non-Sendable types. Here is what the errors actually mean and how to fix them.

Self-Hosting Windmill on Ubuntu: Complete Docker Setup Tutorial with PostgreSQL Troubleshooting

Workflow automation platforms are essential for modern development teams, but Windmill Cloud can become expensive as usage grows. Learn how to set up Windmill on Ubuntu with Docker Compose and Traefik, and troubleshoot PostgreSQL authentication issues that can derail installation.

Solving the n8n “Existing execution data is too large” Error: The Complete Fix for Self-Hosted Instances

Complex workflows with large datasets can trigger n8n’s “Existing execution data is too large” error when testing individual nodes. This guide explains how to identify the payload size limit, adjust it for your self-hosted instance, and optimize resource usage.

A Docker Engine Upgrade on a Live Production Server

Upgrading Docker Engine from 28.1 to 28.2 and Docker Compose from 2.35 to 2.36 on a server running over a hundred containers is not a routine package update. We document the preparation checklist, rollback plan, and the actual step-by-step process we used — with the real commands.

Fixing n8n Webhook Problems: The Complete Troubleshooting Guide for Self-Hosted Instances

Self-hosting n8n gives you control and cost savings, but webhook integrations can fail in ways that don’t occur with cloud-hosted solutions. Learn how to diagnose “Execution cancelled” errors and webhooks that don’t trigger, and configure reliable integrations.

Self-Hosting n8n on Hetzner Cloud: Complete Docker Setup Tutorial

Workflow automation is essential for modern businesses, but SaaS solutions can become expensive as teams grow. Learn how to set up your own n8n instance on Hetzner Cloud for about €6/month plus domain costs, with unlimited workflows and complete control over your automation platform.

tva at SIGN CHINA 2025 / LED CHINA 2025 / DS CHINA 2025: Connect With Us

tva will participate in SIGN CHINA 2025, LED CHINA 2025 · Shanghai, and Digital Signage China 2025 to explore collaborations with suppliers and partners in digital infrastructure, display technologies, and global supply chains.

From React SPA to Astro: When and Why to Migrate

Corporate websites built as React single-page applications were a reasonable choice in 2018, but many now underperform on Core Web Vitals, search rankings, and time-to-first-meaningful-content. Migrating to Astro reconsiders where JavaScript belongs on a site that is primarily content, rather than replacing the framework wholesale.

Building an Exam Prep App with Thousands of Questions: Architecture Decisions

Architecting an exam prep app across multiple regions and certification tracks means solving problems that don't appear until scale does: how to keep thousands of questions organized without a monolithic data model, how to structure a Swift codebase that can serve multiple exam types without diverging, and how to give users a useful offline experience while keeping leaderboards accurate. The decisions we made — and the ones we avoided — are worth documenting.

tva at Canton Fair 2025 Phase 3: Recap

We recently participated in the 137th Canton Fair Phase 3 in Guangzhou. The fair concluded on May 5th with 288,938 overseas buyers from 219 countries and regions attending in person, a 17.3% increase over the 135th session in spring 2024.

Stacking Reverse Proxies: A Production Architecture

Running four reverse proxy layers in front of a single application looks like redundancy. But when Cloudflare, Traefik, Varnish, and Nginx each solve a distinct problem, the apparent complexity resolves into a clear separation of concerns — edge protection, routing, caching, and application serving — with measurable performance benefits.

tva at Canton Fair 2025 Phase 3: Connect With Us

We are pleased to announce that tva will be participating in Phase 3 of the 137th Canton Fair 2025. As a company dedicated to comprehensive infrastructure management and strategic advisory services, we look forward to exploring potential collaborations with suppliers and partners at this prestigious event.

Fixing App Store Icon Rejections: sRGB, Alpha Channels, and Other Traps

App Store Connect rejects icons with unhelpful messages, most often because of a Display P3 profile where sRGB is the safer choice, an alpha channel the validator refuses to accept, or an indexed color palette left behind by an optimization pipeline. This guide explains how to diagnose each problem and fix it from the command line.

Self-Hosting Multiple Database Instances on a Single Server

Running multiple production database instances on shared infrastructure demands careful resource isolation. Here is how we approach it with Docker, and what we learned the hard way.

Why Niche Sports Equipment Is a Surprisingly Good E-Commerce Vertical

Mainstream e-commerce advice favors broad markets with high search volume, but niche sports verticals — bowling, pétanque, curling, disc golf — in our experience tend to outperform on conversion rate, return rate, customer lifetime value, and cost per acquisition. The characteristics that make these markets look unattractive on paper are exactly what make them defensible in practice.

LLM-Powered Job Matching: Building a Candidate-Fit Scoring Pipeline

Keyword filtering is fast, cheap, and wrong in exactly the ways that matter. When a recruiter defines a nuanced ideal candidate profile, no bag-of-words approach can evaluate whether a job listing fits it faithfully. We built a matching pipeline that scores listings against a fixed profile using an LLM, running matches in parallel with ThreadPoolExecutor, tracking token costs in real time, and exposing pause/resume controls from a native SwiftUI macOS application.

tva Duplicate Pro on GitHub

tva Duplicate Pro is now publicly available on GitHub, giving developers and WordPress professionals access to the plugin’s source code, documentation, issue tracking, and release history.

Company Name Change to tva

Our company name has changed to “tva.” The shorter, more distinctive name improves brand recognition while our services, contracts, business relationships, and technical support continue unchanged.

The Convergence of Digital Infrastructure and Global Trade

In today’s interconnected business landscape, the traditional boundaries between digital infrastructure and physical asset management are rapidly dissolving. As a Singapore-based technology and asset management firm, we’ve observed firsthand how this convergence demands a fundamentally new approach to business operations.

tva Duplicate Pro 2.1

tva Duplicate Pro 2.1 streamlines content duplication in WordPress, enabling single-click duplication of pages, posts, and WooCommerce products while preserving content relationships, attributes, and metadata.