PEPPOL software: pricing and how to choose an access point
PEPPOL access points have no fixed price list - you pay per transaction. How to choose between a ready-made provider (Dativery, ESO9) and your own certification.
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Practical articles, not buzzwords
How we build robust KSeF integrations, AI agents, and faster systems — from real projects.
AI in Accounting: What It Actually Automates and What It Does Not
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 →Automated Payment Matching (Even Without a Variable Symbol)
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 →Background Location on Real Phones: Why It Works in the Demo and Fails in Production
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 →Business Central Bank Reconciliation: Limits & Fixes (2026)
Business Central matches payments natively — until missing references, currencies and volume break it. Extend it with fuzzy AI matching and an audit log.
Read more →What Is GEO and AEO (and Why SEO Is No Longer Enough)
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 →Vibe Trading Explained: AI That Trades on News (2026)
How vibe trading works in production: an LLM reads market news, scores sentiment and emits structured trading signals. Real architecture, real limits.
Read more →Where E-Invoicing Is Mandatory: Country Overview 2026-2030
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 →EU ViDA Explained: VAT Reform Timeline to 2035
ViDA reforms EU VAT for the digital age: three pillars, e-invoicing deadlines to 2035, and what it means for Czech and EU companies.
Read more →GEO/AEO checklist: how to get cited in AI answers
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, PEPPOL and KSeF: How They Fit Together
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 →What Is an ISDOC File and How to Open It (2026)
ISDOC is the Czech e-invoice format. Open an .isdoc file for free in 2 minutes, import it into accounting software, or parse it in code — 2026 guide.
Read more →How We Build Software with AI Agents (and Where It Bit Us)
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 →How Long Does Software Development Actually Take (and What Slows It Down)
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 →How We Built Carivio: a Dispatch Platform for 50 Cars from Scratch
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 →How to Prepare for EU ViDA: A Practical Checklist for Businesses
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 →When a Taxi or Logistics Company Outgrows Boxed Dispatch Software
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 →How Much Does a Custom ERP Cost (and When to Build One)
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 →How Much Does KSeF Integration Cost? Real Numbers
What drives the price of KSeF integration and why the cheapest option ends up costing the most. Real numbers, not marketing estimates.
Read more →What a Custom Mobile App Costs and What Drives That Price
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 →What Custom Software Actually Costs
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 →What a Website and a Web Application Cost (2026)
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 API in .NET: the most common errors and how to handle them
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 2026: Which Invoices Count — B2B, Export, Foreign
KSeF is mandatory for B2B invoices of Polish VAT payers from 2026. B2C, export and foreign suppliers follow different rules — learn what you must send.
Read more →KSeF and Dynamics 365 Business Central: how to connect them
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 hundreds of thousands of documents in production.
Read more →KSeF: What It Is and Who It Affects
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 →KSeF Token and Certificate: Authentication and Roles Explained
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 →Why I Carry KSeF Experience 1:1 Over to ViDA and PEPPOL
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 hundreds of thousands of documents holds for the EU too.
Read more →llms.txt: what it is and how to write one
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 →How to Deploy an AI Agent to Production Without It Falling Apart
The AI agent demo looks great. Production breaks it — runaway loops, hallucinations, zero visibility. Six things you need before you go live.
Read more →Matching Payments to Bank Statements: Where It Breaks
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 →PEPPOL access point: what it is and when you need one
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 →Why 5–15% of B2B Payments End Up in a Manual Queue (and How AI Solves It)
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 →Real-time dispatching with SignalR: architecture for fleets
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 →Structured Data (JSON-LD) for SEO and AI: A Practical Guide
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 Development: When It Pays Off and When It Does Not
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 →What we can deliver: five projects and five principles
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 →Why We Build ModularPlatform as a Stable Foundation, Not a PoC
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 →AI agent for invoice processing: when it pays off and where it fails
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 →Robust KSeF Integration: Why Most Implementations Fail and How to Do It Right
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 2026: deadlines, fines and what your company must do in time
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 →Legacy .NET modernization: how we made contract generation 40× faster
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.
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