We build everything from websites to complex system software for small and mid-sized businesses. Efficiently with AI—especially with Claude Code—and run on our own servers in Germany.
We build for and with
01What’s changed
AI-assisted development has quickly reset what a software project costs and how fast it ships. SMEs benefit the most.
Before
With Cronema
02Services
Six building blocks you can mix and match. One partner, one standard of care.
Get seen
From a lean landing page to a multilingual corporate site: fast, search- and AI-friendly, with optional integration into your CRM.
Enhance what you have
Your platform does almost everything — except the one thing you really need? We build that missing piece as a dedicated app, seamlessly integrated.
Your own system
Portals, line-of-business apps, and internal tools — built just for your company and operated on your own server in Germany.
Automate workflows
With n8n, Make, or Zapier we connect your systems and deploy AI agents that sort emails, answer inquiries, and maintain data.
Connect systems
Where off-the-shelf connectors stop, we code the link ourselves: robust, transparent, and built for your data volumes.
Run securely
We provision dedicated Hetzner servers in German data centers for every system. Start lean and scale as your business grows.
03References
Our own products are the best proof of what AI-assisted development can deliver. What we built for Shopify and GoHighLevel, we’ll build for your system too.
GoHighLevel app
The real estate app for GoHighLevel
Import listings from real estate software and MLS, showcase them on your website, create PDF brochures, and capture valuation leads. All inside the CRM.
Shopify app
Booking app for Shopify with AI assistant
Book appointments, classes, rentals, and ticketed events directly in your Shopify store and pay at checkout. Includes an AI assistant for setup.
Shopify app
EU warranty notice and durability label for Shopify
Mandatory since 27.09.2026: the harmonized notice on statutory warranty and the durability guarantee label under EU Implementing Regulation 2025/1960.
Shopify appComing soon
Required notices for batteries, electrical devices and chargers
Battery notice, take-back symbol and charger pictogram added to the store automatically, after the purchase and in the order email too. For 30 countries, in 26 languages, with AI research.
04Own systems
Why a dedicated, self-contained system pays off for more and more companies.
Workflows, terminology, and interfaces exactly as you need them. No bloat—and no missing essentials.
Not a widely targeted standard platform that bots scan for known exploits. Plus a hardened, dedicated server.
New—even complex—features are delivered quickly. Your system grows with your ideas, not a third-party roadmap.
Your data resides in German data centers. Privacy isn’t an add-on—it’s the foundation.
05Hosting model
For every system we provision dedicated cloud servers with Hetzner in Germany. That lets you start with a modest hosting budget.
As usage grows, we scale the servers with a few clicks. Costs only grow with our customers’ success, not before.
06Approach
Claude Code writes a large share of the code. Architecture, review, and accountability stay with us. That makes us fast without compromising quality.
We learn your goals, workflows, and current systems.
A working first version in short order instead of a hefty spec document.
Short iterations; every feature tested and approved by you.
Setup on your server in Germany, data migration, and handover.
Operations, maintenance, and new features whenever you need them.
07Cross Net Management
Cronema stands for Cross Net Management. We’ve carried the name for about 15 years—and it fits better than ever.
Back then it meant linking and controlling systems across networks. Today we connect shops, CRMs, databases, and AI agents into solutions that operate autonomously. The principle remains: we bring together what belongs together—and keep it running reliably.
Cross · Net · Management
Team
30+ years of digital experience each—from graphic design to web development. Today we combine this expertise in an AI agency.
Founder and Managing Director
Developer by passion—from 3D animation to AI-assisted software development.
„New technologies inspire me every single day.“
Business partner, marketing and strategy
Strategist with roots in design and editorial—bridging technology and business model.
„I love connecting creative ideas with technological progress.“
FAQ
We build software like a classic agency—but we lean on AI tools throughout, especially Claude Code. The AI handles a large share of the coding; we plan, review, and take responsibility for the result. That’s how bespoke solutions ship faster and more cost-effectively.
Small and mid-sized businesses that want more than off-the-shelf: merchants on Shopify, service providers using CRMs like GoHighLevel or HubSpot, real estate agencies, agencies, and companies with unique processes.
Yes—when built the right way. We use proven technologies, review every change, rely on type checking and tests, and run systems on hardened servers. Our own apps work247, Bookique, and GARAN-Label run exactly like this.
It depends on scope—from a landing page to a fully bespoke system. Thanks to AI-assisted development, costs are well below classic agency rates. After an initial call you’ll get a clear, transparent estimate.
On dedicated cloud servers with Hetzner in German data centers. Every client system gets its own servers. You start small—and costs only grow with your success.
Yes—that’s one of our specialties. We build apps and extensions for Shopify, GoHighLevel, HubSpot, and other platforms with open APIs.
Classic automation follows fixed rules: if A, then B. An AI agent also understands content—like an email or a document—and decides what to do within your guardrails. We combine both with n8n, Make, Zapier, or custom integrations.
Usually within a few days of the first conversation. You’ll typically see an early prototype very soon in the project.
Contact
Tell us about it. In a short call we’ll clarify what’s possible, how long it takes, and what it costs.