This document outlines the sale of a complete, production-ready Manufacturing Execution System (MES) called Fertigo. This is not a rudimentary project; it includes 51,400 lines of code, 262 automated tests, and 61 features. Fertigo is a SaaS application featuring a multi-tenant architecture, integrated billing, GDPR compliance, a REST API, and superadmin-panel. Deployable instantly, it eliminates the need for costly and lengthy development typically costing between €150,000 and €300,000 over 8 to 14 months at standard German developer rates. Fertigo caters to the sizeable German Industry 4.0 market, which holds immense growth potential with a market value of $13.6 billion by 2025. The application addresses gaps for mid-sized manufacturing companies, offering an affordable option compared to traditional on-premise systems with hefty costs and complex requirements. Features include core planning, an interactive Gantt chart, MES dashboards, real-time OEE data, automated reporting, preventive maintenance, and a comprehensive SaaS infrastructure. The system is pre-revenue with potential revenue scenarios calculated based on varying subscription models. The seller, a solo developer, is focused on building rather than marketing, hence the sale is driven by a desire for new projects rather than any shortcomings in the application. Ideal buyers include MES/ERP providers, system integrators, technical founders, and investors seeking to penetrate the German Industry 4.0 market. Post-purchase, a 30-day technical support from the developer is available.