21 August 2026 · Technical
XRechnung: The XML Invoice Germany Requires
What XRechnung is, why it is mandatory for B2B invoicing in Germany, and how NeoDonkey generates compliant XML invoices from its git-based ledger.
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Earlier writing
- 2026-08-25From Excel to ERP: When Spreadsheets Break and What to Use Instead
- 2026-08-25Digital Sovereignty: Why EU Companies Need Open Source Software
- 2026-08-25Microsoft Dynamics 365: Ecosystem Trap or Business Tool?
- 2026-08-24Git as a Database: How Version Control Replaces Traditional ERP Storage
- 2026-08-24How to Audit Your ERP Vendor’s Pricing: A CFO’s Guide
- 2026-08-24The Hidden Price Tag: What Failed SAP S/4HANA Migrations Really Cost Enterprises
- 2026-08-24The AI Copilot That Runs on Your GPU: Local‑First Intelligence
- 2026-08-23Digital Sovereignty: Why EU Companies Need Open Source Software
- 2026-08-23Microsoft Dynamics 365: Ecosystem Trap or the Ultimate Business Tool?
- 2026-08-22The AI Copilot That Runs on Your GPU: Local‑First Intelligence
- 2026-08-22ERP Vendor Lock‑In Horror Stories and How to Escape
- 2026-08-22Git as a Database: How Version Control Replaces Traditional ERP Storage
- 2026-08-21Zero Dependencies Is Not a Slogan
- 2026-08-21DATEV EXTF: The Format German Tax Advisors Actually Want
- 2026-08-21Git as an Audit Trail
- 2026-08-21Exact Money: Why NeoDonkey Stores Cents as BigInt
- 2026-08-20DATEV EXTF v700: A Zero-Dependency Serializer in 200 Lines
- 2026-08-20Git is the database. Cryptographic commits as a system of record
- 2026-08-20The true cost of an S/4HANA migration, from failed projects
- 2026-08-19Why S/4HANA migration projects fail
- 2026-08-19Five signs your ERP vendor has you trapped
- 2026-08-18The 2026 ERP landscape. AI agents and cloud mandates
- 2026-08-18Headless ERP explained
- 2026-08-17Why your ERP is hostageware
- 2026-08-17The hidden cost of free cloud ERP
- 2026-08-16Why the licence is EUPL-1.2
- 2026-08-16The hidden cost of cloud ERP subscriptions