How we build robust KSeF integrations, AI agents, and faster systems — from real projects.
What AI in accounting can actually do — invoice extraction, payment matching, categorization, checks. And what it cannot — decisions, exceptions, accountability. When SaaS is enough and when you need custom.
Read more →How automated payment-to-invoice matching works. Deterministic matching via the variable symbol vs cases where the VS is missing — partial and merged payments, foreign currency, fuzzy matching, a manual queue, and an audit log.
Read more →In the demo, driver location tracking runs without issues. In production — phone in a pocket, app in the background all day — the OS kills the app and the location disappears. How to handle it properly.
Read more →What Business Central does natively when matching payments and where it hits limits — fuzzy matching without a variable symbol, enterprise volume, foreign currencies, custom rules. And how to extend it with an AI add-on that has an audit log.
Read more →SEO optimizes for Google. GEO and AEO optimize for being cited in AI answers — ChatGPT, Perplexity, Google AI Overviews. How they differ and what to actually do.
Read more →A term spreading through the AI community. What is behind it, what it looks like in a real system, and where the limits are — no marketing.
Read more →Which countries have mandatory B2B e-invoicing and when. Poland KSeF, Belgium Peppol, Germany, Italy SdI, France, Spain, EU ViDA. Verified dates, hedged where uncertain.
Read more →ViDA is the EU package reforming VAT in the digital age. Three pillars, the current timeline through 2035, and what it means for companies in the Czech Republic and the EU.
Read more →Seven concrete steps that increase the chance of AI systems like ChatGPT, Perplexity or Google AI Overview citing you as a source. No theory — just what to do and why.
Read more →ISDOC is a Czech format, PEPPOL a European transport layer, KSeF a Polish government system. How they relate, and what a company should take away from it.
Read more →Received an .isdoc file and not sure what to do with it? What ISDOC is, how to open it for free or load it into accounting software, and when to parse it in code.
Read more →How we actually use AI agents in development — orchestrator + workers, reference discovery, spec-driven workflow. And a war story about how a popular .NET abstraction silently killed prompt caching and cost us money.
Read more →Most estimates are two to three times longer than they need to be. But not always. An honest look at what speeds a project up and what actually stops it.
Read more →A three-platform taxi dispatching system in 4 months. 128,000 lines of backend, real-time ride auctions via SignalR, PostGIS geospatial, production Claude AI. What was hard and what you never see in a demo.
Read more →ViDA entered into force on 14 April 2025. The EN 16931 cross-border obligation arrives on 1 July 2030. Here is a checklist of what to do before the deadlines catch you off guard.
Read more →Webdispečink or Taxinity are a great start. But there comes a point when your operation no longer fits what the package can offer. How to recognise that moment — and what a custom platform actually delivers.
Read more →Custom ERP vs Odoo, SAP and off-the-shelf systems. What actually drives the price, when building your own pays off, and when to buy ready-made. A decision article without marketing.
Read more →What drives the price of KSeF integration and why the cheapest option ends up costing the most. Real numbers, not marketing estimates.
Read more →The price of a custom mobile app is not driven by screen count. It is driven by the backend, real-time, integrations and the number of platforms. What decides it and where you can save.
Read more →Why comparing software quotes is nearly impossible and how to make sense of pricing. Rate structures, blended rate, fixed-price vs. T&M, and when SaaS falls short.
Read more →Website cost spans two orders of magnitude depending on whether it is a presentation site or a custom application. What drives the price, when a template is enough, and when custom pays off.
Read more →KSeF is an async, rate-limited, stateful government system. These are the error categories we hit in .NET integrations and the concrete patterns to handle each one.
Read more →KSeF covers B2B invoices of Polish VAT payers. B2C, invoices from foreign suppliers, and export each have their own rules. An overview of what you must send through KSeF and what you must not.
Read more →How to actually connect KSeF to Dynamics 365 Business Central — invoice mapping, durable submit, status polling, UPO back into BC, reconciliation, and outage handling. Tested on 40,000+ documents in production.
Read more →KSeF is the Polish state e-invoicing system — mandatory from 1 Feb 2026 for large VAT payers and from 1 Apr 2026 for other VAT payers. What it means for Czech companies.
Read more →Token, qualified certificate, KSeF certyfikat, uprawnienia, and ZAW-FA. How to log in to KSeF and what to handle when connecting a .NET application. The token works only until the end of 2026.
Read more →KSeF, a PEPPOL access point, and ViDA digital reporting are all connections to a regulated system. Same machinery: idempotence, retry, reconciliation, rate limiting, audit log. What I verified on 40,000+ documents holds for the EU too.
Read more →llms.txt is a file in your web root that tells AI models what to know about you and when to recommend you. How it differs from robots.txt, what to put in it, and how to verify that bots actually read it.
Read more →The AI agent demo looks great. Production breaks it — runaway loops, hallucinations, zero visibility. Six things you need before you go live.
Read more →A technical look at payment matching: connecting to a bank API, normalization, matching rules, fuzzy matching without a variable symbol, idempotence, and reconciliation. Real edge cases.
Read more →A PEPPOL access point is your entry to the European e-invoicing network. When you need one (B2G, Belgium, ViDA 2030), when you do not, and why a provider beats your own.
Read more →Deterministic payment matching on the variable symbol fails on a wrong VS, partial and merged payments, and foreign currency. Why it costs hours of accounting work and how AI fuzzy matching shrinks that queue.
Read more →How to build real-time dispatching for a fleet with SignalR — auction model, 4 hubs, separating push from live sync, one source of truth, and 12 background jobs for timeouts.
Read more →What JSON-LD and schema.org are, why they help Google and AI, and how to implement the four most impactful types — Organization, Article, FAQPage, BreadcrumbList.
Read more →Custom software is not always the right answer. Where the tipping point sits between an off-the-shelf product and your own build, what to watch out for, and when to just buy.
Read more →Instead of a CV rundown — five real projects, one principle from each, showing how we think about the work. Enterprise performance, resilient integration under load, a complete product from scratch, AI inside real systems, and AI inside a fintech system that trades with its own state.
Read more →Most products start as a proof of concept that gets patched for years. We build a modular foundation designed from the start for reliability, extensibility, and no vendor lock-in. What that means in practice and why it saves clients time and money.
Read more →A practical, honest look for mid-sized companies: what an AI invoice agent actually does, where it saves money, and where it breaks down.
Read more →KSeF is not just an HTTP call. It is an async, rate-limited government system that goes down. Here is how to build an integration that never loses an invoice.
Read more →KSeF mandatory from 1 Feb 2026 for large VAT payers, 1 Apr 2026 for the rest. No fines in 2026, enforcement from 1 Jan 2027. Deadlines and readiness checklist.
Read more →A large Czech bank spent 2+ hours generating contracts, CPU at 95%. After the refactor: 3 minutes, CPU 15%. Here is how we found the bottleneck and fixed it.
Read more →