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.
Insights
Self-Hosting Windmill in 2026: Workers, PostgreSQL, Isolation, and Safe Upgrades
A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.
WordPress 7 and Elementor Performance: Database Health Beyond Revision Cleanup
A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.
CloudPanel on Modern Hetzner: A Measurement-First Performance Guide
A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.
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
A current, production-oriented follow-up that turns vendor guidance into operating controls, migration decisions, and verifiable release criteria.
Self-Hosted n8n 2.x: Fix Execution Data Before Raising Payload Limits
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 rarely fails because a company cannot translate a storefront. It 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 boun...
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. We separate probabilistic interpretation from deterministic contr...
The Data Readiness Problem in Enterprise AI
Enterprise AI programmes rarely stall because a team cannot call a model. They stall because the organisation cannot establish what its data means, whether it is current, which record is authoritative, who may act on an output, or how a result will be measured. We use a six-part readiness framewo...
Google Ads API: Setup, Authentication, Read and Write Operations
A technical walkthrough for setting up programmatic Google Ads access — from architecture to the first API call. Covers MCC configuration, OAuth 2.0, Developer Token levels, the google-ads Python libr
Agent Harness Design: Choosing the Right Model
Model routing is an operational control problem, not a leaderboard exercise. Privacy and residency requirements define the admissible model pool first; task success and output quality decide what works within that pool; only then should teams optimize tokens, latency, and cost. Local models can b...
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, not like a demonstration of model intelligence. Physical operations make this visible: standard work creates throughput, explicit quality boundaries protect the result, and exceptions and handoffs determine...
Tuning a Hermes-Style Agent That Grows With Your Project
A hermes-style AI assistant that works in DM hits 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
How to build a project-specific AI assistant on Telegram, backed by Claude Code CLI running in a self-hosted container. Per-mandate instance pattern, seven architecture decisions to make before writing code, full compose and Dockerfile, and a replicable bootstrap walkthrough.
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 to buy by an individual to being safe to buy by an organization.
Reducing Amazon FBA Return Rates Through Systematic Data Analysis
Returns account for up to 15% of Amazon FBA sales and the cost concentrates 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, competing 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
The decision framework for self-hosting versus managed services. The subscription fee comparison is the least useful part of the analysis; the factors that determine total cost over a realistic horizon are operational time, security burden, team stability, and instance count.
GitHub Actions for Self-Hosted Deployment Pipelines
GitHub Actions is well-documented for deployments to cloud PaaS platforms — Vercel, Railway, Fly.io, and similar managed environments all have first-party integrations. But in reality, a significant share of production infrastructure runs on self-hosted VPS instances or bare-metal servers where the deployment model is fundamentally different. This post covers the patterns we use 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
We built a script to automatically download our Wise bank statements. That is a one-afternoon task. The more interesting question — one that took considerably longer to answer — was whether the same tool could serve other businesses with the same problem, and what it would take to make that transition responsibly. The journey from a CLI script running on a developer laptop to a containerised service with email notifications exposed a set of decisions that are worth documenting.
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 behaviour — particularly around product certifications — requires deliberate structural decisions.
Solo Operations at Scale: Managing Dozens of Projects with a Small Team
There is a point in the growth of any small operation where the number of active projects exceeds what can be held in working memory. Orders need monitoring across multiple marketplaces. Infrastructure needs maintenance. New features are in development. Clients have questions. Everything is real work, and there are not enough hours to treat each project with the same level of active 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 fulfilment 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 are built around the assumption that demand must be created. You build a product, then you communicate its existence to people who do not yet know they want it. But in reality, a large portion of commerce operates on a different principle: demand already exists, and the business problem is positioning yourself 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
The specific SEO fixes that improved rankings — canonical URL inconsistencies, sitemap filtering, trailing slash normalization, and GSC indexing issues. Real before/after data, abstracted.
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, advertising, catalog performance. But in reality, the data is only useful in the 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. Within hours, threat intelligence teams at Amazon, Google, and Microsoft observed active ex...
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 the migration path we chose.
One Website in Dozens of Languages: Practical i18n for E-Commerce
Internationalizing an e-commerce site to dozens of languages — translation pipeline decisions, URL structure trade-offs, hreflang implementation, RTL considerations, and the cultural adaptation work that no translation tool handles.
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 — different report formats, currencies, and date conventions. Config-driven architecture, per-marketplace YAML status, and a registry-based report definition approach.
Dozens of Backend Tests in One PR: Our Testing Strategy for FastAPI
Writing a comprehensive test suite for a FastAPI backend in one focused pull request. Fixture patterns that provide transaction rollback isolation, mocking external HTTP calls with respx, and testing authentication flows via dependency injection overrides – along with an honest assessment of the return on investing in tests late rather than never.
Reddit Pixel Tracking for Shopify: Server-Side Implementation with Conversions API
Reddit’s tracking for e-commerce faces the same challenges as other advertising platforms: browser-based pixels are increasingly blocked by ad blockers, privacy settings, and iOS tracking restrictions. According to Reddit’s official documentation, the Conversions API provides “m...
Automating Amazon Seller Central Data Extraction: A CLI-First Approach
Building a CLI tool to extract dozens of report types from Amazon Seller Central — the browser automation trade-offs, deterministic file naming, YAML state tracking, and the two-pass workflow for overnight reports.
Expanding Amazon FBA to New Marketplaces: A Data-Driven Framework
The instinct when an Amazon business is performing well in one marketplace is to expand. The instinct is correct. But in reality, most marketplace expansion decisions are made on impressions rather than structured evaluation — and the differences between markets are large enough that an unscored launch can 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 face a consistent challenge that most third-party tools fail to address properly. The data that matters – orders, inventory levels, financial settlements, returns, catalog performance – exists in Amazon’s systems, but accessing it programmatically at scale requires navigating...
tva-fetch | How Complete Data Ownership Transforms Amazon Selling Operations
The push toward data-driven e-commerce is real, and largely misunderstood. Sellers accumulate tools that promise insights, dashboards that display metrics, and reports that summarize performance. But in reality, what matters isn’t visualization – it’s access to the underlying da...
When Docker Auth Breaks Mobile Sign-In: A Cross-Platform Bug Story
A production incident where Google and Apple Sign-In failed on mobile because the Supabase auth container’s PostgreSQL search_path did not include the extensions schema. The debugging journey from “auth broken on mobile” to the fix, and what it reveals about cross-platform OAuth differences.
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 launched Skills for Claude this week, and the feature addresses something real – a gap that’s been frustrating organizations trying to deploy AI at scale. The promise is simple: package your expertise into reusable modules that Claude can load on demand. But in reality, Skil...
Building Tax Compliance Tools That Actually Work
The 183-day rule sounds simple in theory – spend fewer than 183 days in a country, and you may avoid tax residency. But in reality, tracking this across multiple jurisdictions with manual calendars and spreadsheets is largely unsuited to the way modern professionals actually live and work. ...
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 gradual accumulation of disk pressure, silent failures, and expired certificates.
Complete n8n Self-Hosted Troubleshooting Guide 2025: Fixing Execution Data Size & Webhook Problems with Traefik
Last Updated: October 15, 2025 Self-hosting n8n delivers unlimited workflow executions, complete data control, and significant cost savings compared to cloud plans. But in reality, self-hosted instances face unique challenges that cloud users never encounter – specifically around large...
Building AI Agent Skills for Domain-Specific Business Workflows
The general-purpose AI coding agent handles a surprisingly wide range of tasks. But most teams hit the same friction point in real operational environments: providing domain context is itself a task that grows with the complexity of the domain...
Deploying React Applications to Production: Complete Docker Setup with Traefik Reverse Proxy
Building a React application locally is straightforward. Deploying it to production servers correctly? That’s where most developers hit unexpected roadblocks. This guide documents a real deployment debugging session where everything appeared configured correctly—container running, Traefik l...
Bulgaria’s Euro Adoption: What App Developers Need to Know About the January 2026 Currency Transition
Apple’s recent notification to developers signals a significant milestone for the European digital economy. Beginning January 1, 2026, Bulgaria will officially adopt the euro, replacing the Bulgarian lev after nearly two decades of EU membership. For anyone building or distributing applicat...
US Port Service Fees: What October 2025 Means for Global Supply Chains
The maritime logistics landscape is about to shift significantly. Beginning October 14, 2025, the US Trade Representative will implement a new port fee structure targeting Chinese-owned, Chinese-operated, and Chinese-built vessels entering US ports. The phased approach, plateauing in 2028, repres...
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, the question of what happens when that machine dies is not theoretical. The backup strategy we run covers pg_dump orchestration for multiple PostgreSQL instances, staggered scheduling to avoid I/O contention, encrypted uploads to object storage, and regular restore testing. Here is how it is structured and what we learned from the first time we actually needed it.
Preventing Token Refresh Race Conditions in Single-Page Applications
Users get randomly logged out, error monitoring shows sporadic 401s on routes that should be authenticated, and the pattern is infuriatingly inconsistent. The cause is almost always the same: multiple concurrent API calls simultaneously detecting an expired token and independently attempting to refresh it. This post covers the singleton promise pattern, the interceptor queue approach, and how this specific 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 visualisation 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
We’ll be participating in MEDICAL FAIR THAILAND 2025, Southeast Asia’s premier medical and healthcare exhibition. As Thailand continues to establish itself as the largest medical technology market in the region, this event represents a crucial opportunity for companies looking to...
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 in...
WooCommerce Performance Optimization: From 8 Seconds to 0.2 Seconds Load Time
E-commerce performance directly impacts revenue – studies show that a one-second delay can reduce conversions by 7%. When dealing with WordPress multisite networks running WooCommerce across multiple regions, performance challenges become exponentially more complex. We’ll show you how we ac...
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
How to create a template-based, multi-tenant development environment with 16 containerized services that works offline yet remains accessible online through subdomain-based routing Managing development environments for multiple clients often means choosing between complex manual setups or expensi...
Final Days to Connect: tva at eCommerce Expo | DMEXCO Asia 2025
As we approach the final countdown to eCommerce Expo | DMEXCO Asia 2025, taking place on 8-9 October 2025 at Marina Bay Sands, Singapore, we wanted to send you this important reminder about this event and our participation. A Quick Reminder About This Event As we previously announc...
DuckDB for Ad-Hoc Analytics: Turning Thousands of CSVs into a Dashboard
Amazon Seller Central generates data at a pace that outstrips most analysts’ tooling. Traffic reports, conversion data, inventory health summaries, business performance exports, advertising campaign breakdowns – each delivered as a CSV or TSV file, accumulating over months and years into directories containing thousands of files. The standard response is to import everything into a database. But in reality, standing up and maintaining a PostgreSQL instance for a read-heavy, schema-variable analytics workload introduces more overhead than the problem warrants.
Building a Local AI Assistant with Web Search: MCP + Ollama Setup
How to combine local language models with web search capabilities while keeping your data private Setting up AI tools for business use often means choosing between convenience and privacy. Cloud-based solutions are easy to use but send your data elsewhere. Local solutions keep everything on your ...
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 localised 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 regarding tva’s participation in the co-located exhibitions SIGN CHINA 2025, LED CHINA 2025 · Shanghai, and Digital Signage China 2025, we are pleased to provide additional insights based on recent industry developments and enhanced exhibition pr...
tva at IAAPA Expo Asia 2025: Strategic Partnerships in the Global Attractions Industry
We are pleased to announce that tva will be participating in IAAPA Expo Asia 2025, the premier trade show and conference for the attractions and leisure industry in the Asia-Pacific region. As a company dedicated to comprehensive infrastructure management and strategic advisory services, we look ...
CloudPanel Performance Optimization: Maximizing Hetzner Cloud Server Performance for Lightning-Fast Website Delivery
Self-hosting multiple websites on a single server becomes exponentially more challenging when performance bottlenecks emerge. CloudPanel simplifies website management, but achieving optimal performance requires systematic server optimization that goes far beyond default configurations. If youR...
Database Cleanup and Recovery: Eliminating Elementor Performance Bottlenecks in CloudPanel Environments
Managing multiple websites becomes exponentially more challenging when database bloat and corrupted access credentials create cascading performance failures. CloudPanel simplifies website management, but eliminating critical database bottlenecks requires systematic cleanup strategies that go far ...
Supporting Europe’s Largest Infrastructure Project: Protective Socks for Stuttgart 21
When Europe’s most ambitious railway infrastructure project requires specialized safety solutions, precision logistics and innovative hygiene products become critical success factors. Our collaboration with Turmforum, representing the Stuttgart-Ulm Railway Project (Bahnprojekt Stuttgart-Ulm...
Punchout Integration with WooCommerce: Streamlining B2B Procurement Through Intelligent Automation
The digitization of B2B procurement processes has accelerated dramatically across global markets. Large enterprises increasingly depend on eProcurement systems like SAP Ariba, Coupa, and Oracle to standardize and automate their purchasing workflows. For suppliers, this evolution presents both opp...
Privacy-First Analytics: Setting Up Self-Hosted Plausible with Google Search Console
The analytics tracking landscape has shifted considerably since GDPR took effect in 2018. In reality, most organisations still run Google Analytics 4 on their websites — not because it is the best tool for the job, but because migration appears costly and the alternatives seem niche. We moved to self-hosted Plausible CE and the results are worth documenting in detail...
tva at eCommerce Expo | DMEXCO Asia 2025: Connect with Us at Singapore’s Premier Digital Commerce Event
We’re excited to announce that tva will be participating in the inaugural eCommerce Expo | DMEXCO Asia 2025, taking place on 8-9 October 2025 at Marina Bay Sands, Singapore. This groundbreaking event marks DMEXCO’s first international expansion, bringing together Asia&#...
Digital Commerce Operations: Orchestrating Global E-Commerce Through Integrated Infrastructure
Over 22 years of e-commerce evolution have taught us that sustainable growth requires more than technology – it demands orchestrated integration of digital infrastructure, international trade expertise, and operational excellence. At tva, we’ve refined methodologies that transform complex m...
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...
Importing to Japan: Complete ACP Implementation Guide with Deductive Method Navigation & Cost Optimization
International expansion into Japan’s market offers significant opportunities, but the regulatory requirements introduced in October 2023 have created complex barriers that can derail unprepared sellers. We’ll guide you through implementing Attorney for Customs Procedures (ACP) service...
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 cloud solutions like Windmill Cloud can become expensive as usage grows. We’ll show you how to set up your own Windmill instance on Ubuntu with Docker Compose and Traefik integration, overcoming critical PostgreSQ...
Solving n8n “Existing execution data is too large” Error: The Complete Fix for Self-Hosted Instances
Self-hosting n8n gives you unlimited workflow executions and complete control, but complex workflows with large datasets can trigger frustrating errors that don’t exist in cloud-hosted solutions. If you’re seeing “Please execute the whole workflow, rather than just the node. (Ex...
A Major Docker Engine Upgrade on a Live Production Server
Upgrading Docker Engine from 28 to 29 and Docker Compose from v2 to v5 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 incredible power and cost savings, but webhook integrations can sometimes fail in ways that don’t occur with cloud-hosted solutions. If you’re seeing “Execution cancelled” errors or webhooks that simply don’t trigger, you’re not alone...
Self-Hosting n8n on Hetzner Cloud: Complete Docker Setup Tutorial
Workflow automation has become essential for modern businesses, but SaaS solutions can become expensive as teams grow. We’ll show you how to set up your own n8n instance on Hetzner Cloud for under €5/month, giving you unlimited workflows and complete control over your automation platform. W...
tva at SIGN CHINA 2025 / LED CHINA 2025 / DS CHINA 2025: Connect With Us
We are pleased to announce that tva will be participating in the co-located exhibitions SIGN CHINA 2025, LED CHINA 2025 · Shanghai, and Digital Signage China 2025. As a company dedicated to comprehensive infrastructure management and strategic advisory services, we look forward to exploring poten...
From React SPA to Astro: When and Why to Migrate
Corporate websites built on React single-page applications were a reasonable choice in 2018. Many of those same sites now underperform on Core Web Vitals, search rankings, and time-to-first-meaningful-content. Migrating to Astro is not a wholesale framework replacement — it is a reconsideration of where JavaScript belongs in a site that is primarily content.
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 and wanted to share our experience with you. Fair Overview The Canton Fair concluded on May 5th with strong attendance figures – 288,938 overseas buyers from 219 countries and regions visited in person, a 17.3% increase from t...
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 — routing, caching, application serving, and compute — 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 prestigi...
Fixing App Store Icon Rejections: sRGB, Alpha Channels, and Other Traps
App Store Connect rejects icons with messages that tell you almost nothing useful. In most cases, the culprit is one of three things: a Display P3 color profile where sRGB is required, an alpha channel the validator refuses to accept, or an indexed color mode that quietly breaks PNG compliance. Here is how to diagnose each 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 points toward broad markets with high search volume. But in reality, niche sports verticals — bowling, pétanque, curling, disc golf — consistently outperform on the metrics that actually determine profitability: 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 Lead 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
We’re pleased to announce that tva Duplicate Pro is now publicly available on GitHub. This release provides developers and WordPress professionals with direct access to our plugin’s source code while maintaining the same quality standards you expect from our products. For a comprehens...
Company Name Change to tva
Our company name has changed to “tva.” This strategic update enhances brand recognition while maintaining our commitment to technical excellence and precision in all services. What This Means The transition to tva represents a refinement of our identity that better reflects our core c...
The Convergence of Digital Infrastructure and Global Trade
A Modern Approach to Asset Management 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 t...
tva Duplicate Pro 2.1
Streamlining Content Management in WordPress In the realm of digital content management, efficiency and precision are paramount. Today, we’re pleased to announce the release of tva Duplicate Pro, a sophisticated WordPress plugin designed to streamline your content duplication workflow. This...