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Meierhoff Systems

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Nexonoma - Knowledge Graph Platform

Nexonoma is a web app for exploring architectural knowledge and connected content. A knowledge graph makes concepts, methods, tools and technologies accessible; graph modelling and AI-assisted content pipelines support maintaining the knowledge catalogue.

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App screenshot

Nexonoma - Knowledge Graph Platform · App screenshot

Screenshot of the Nexonoma knowledge catalogue with concepts, methods, tools, and technologies
My role
Product Owner, Software Architect and Software Developer
Context
Own project
Period
from 10/2025; separate app from 11/2025
Updated
Available to use publicly

MY CONTRIBUTION

Tasks & Implementation

  • Developed a semantic model for connected knowledge about software, architecture, organization, methods and technologies.
  • Built a public knowledge application and API with graph navigation, perspectives, search and matrix views.
  • Developed internal tools for schema-driven AI content generation, validation, repair and publication.
  • Organized graph tools, shared schemas and types, and separate public and internal applications.
  • Built a static product website and infrastructure automation as supporting components.

RESULTS

What came out of it

  • A navigable knowledge application provides access to content and relationships through a shared semantic model.
  • A public API connects graph and perspective data from Neo4j and PostgreSQL.
  • An internal content pipeline generates structured content with schema validation and repair steps.
  • Separate repositories and data contracts for the product website, knowledge application and internal maintenance tools.

Main technologies

  • Next.js
  • NestJS
  • TypeScript
  • Neo4j
  • PostgreSQL
  • Astro
  • Tailwind CSS
  • JSON Schema
  • AJV
  • Ansible

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