nexxus /nexxus
The foundation for modern
business applications.
Our framework. Modular. AI-ready. Adaptable down to the code.
Our framework is the basis on which ideas quickly take shape. With a modular architecture, extensive core features and AI integration, it becomes exactly the solution that moves your company forward.
Tested foundation. Full control.
Every standard module must meet the highest standards to become part of our framework – tested, proven and ready for production use. At the same time, every module stays flexibly adaptable to your individual requirements, thanks to full control over the code.
This way your project grows on a stable foundation yet stays free in its design – with building blocks that fit together precisely into your solution.
One framework. Diverse solutions.
From proven modules to AI-supported processes.
Three focus areas form the backbone: core functions cover the standard needs, use cases show the typical applications, AI & innovation opens the framework to the future.
Core functions 8
- Extensive core featuresAlready built into many modules.
- Custom list & detail viewsFilters, quick links, file upload.
- Tabs & structuresOrganize data clearly.
- Form designerDesign without programming.
- Planning assistantAI-supported, at the touch of a button.
- AutomatableRule-based processes.
- Integration-readyInterfaces to third-party systems.
- Future-proofGrails & Spring as the basis.
Use cases 6
- CRM & ERP systemsClients, projects, resources centrally.
- DMS & order managementDocuments, approvals under digital control.
- Scheduling & asset systemsPlanning during ongoing operations.
- Sales & campaignsAI-supported analyses.
- Customer portalIntuitive customer & partner portals.
- Mobile app field serviceOrders, signatures, navigation – offline.
AI & innovation 9
- AI-readyAll modules ready for LLM integration.
- RAG & knowledge graphsCompany knowledge as a source of answers.
- Multi-agent orchestrationSpecialized agents coordinated.
- Chatbots & assistantsFor customer & internal workflows.
- Workflow optimizationFind bottlenecks, automate routines.
- Process supportEnrich existing processes.
- Document recognitionAutomatically classify & extract.
- LLM deployment & managementRun securely in your environment.
- e-invoicing & standardsStandards-compliant to external systems.
The technical substance is there from day 1.
Nexxus is the production-proven multi-tenant AI platform from Rabbit Hole and the technical foundation of every nexxus project. Your custom solution builds on it and delivers the domain-specific value — the following 12 capabilities come for free.
Multi-tenancy out of the box
One application, isolated data spaces per tenant. No deployment multiplication, no maintenance of ten parallel instances, no operational chaos when scaling.
Granular permission management
Management, department, staff, external partners get exactly the view they're allowed. Roles, area assignment, SSO-capable.
Model-independent AI gateway
Today AWS Bedrock (EU), tomorrow whichever model is best. Switch providers without code changes, no dependence on a single vendor.
Several AI agents, one conversation
Specialized agents for different tasks work together in orchestration, transparent to the user.
Persistent knowledge & memory system
What you maintain once stays permanently available to the AI; conversations are taken into account across sessions within the permitted scope.
Semantic search & RAG
The AI finds answers that fit the content, not just keyword matches. Tenant-separated vector indexes via pgvector.
Integrated document management
Policies, forms, instructions – versioned, access-controlled, linkable in the bot.
Multilingual transactional emails
Confirmations, invitations, notifications in the recipient's language, with placeholders per tenant and use case.
Complete email tracking
Every outgoing message is traceable (sent, delivered, bounced) — crucial for support and accountability.
Data comes in — in any format
Generic ingestion framework for CSV, XLSX, JSON with validation, delta reconciliation and audit trail. Domain-specific adapters (e.g. from heterogeneous ERP or CRM exports) are delivered per project as needed.
Audit-proof from the start
Every AI interaction, every data access, every configuration change is logged traceably. Crucial for compliance, GDPR and your users' trust.
No black box
You get code visibility and configuration access within the contractually agreed scope. No vendor lock-in, further development possible at any time.
One decisive step ahead.
Save time. Cut costs. Ensure quality.
With our framework you skip the most time-consuming project step – developing basic functions. Already in the concept phase we identify where these accelerators can be used to reach your digitalization goals faster.
This way your solution is built cheaper and faster – with the same control and quality as a full custom development.
Sounds like your next project?
In the 90-minute workshop we look together at which framework building blocks fit your use case.