Mountain journal
What we found along the way.
Stories from audits and deployments: what held a company back, what we built and what it gave back. Plus guides to what companies need to get done.
Guide · 24 October 2026Slovakia did not invent e-invoicing
Italy has sent invoices between businesses through the state since 2019, Belgium and Poland since 2026, and Germany and France are switching right now. Slovakia is in the middle of the wave, while Czechia still stands aside. We explain who introduced what, what the European Union is preparing for 2030, and why an invoice from the USA will still arrive by email.
Guide · 27 September 2026E-invoicing from 1 January 2027: what you need to get done in time
From January 2027, a VAT payer will send an invoice to a Slovak company as data via a certified delivery service, not as a PDF by email. We explain who this affects, what changes in practice, and what to get done before the end of the year.
Case study · 26 September 2026The call notes that nobody wrote
A call with a client lasted 66 minutes, and Kovrin wrote down eleven tasks from it, each with who is next to act. We did not write the notes by hand; transcribing notes was no longer needed.
Case study · 24 September 2026One zero was missing from the variable symbol
A client paid our invoice in two payments and mistyped the variable symbol in both. The money was in the account, but the invoice stayed marked unpaid in the system, until we taught Kovrin to recognise that kind of typo.