mbrigl/opamp-fleet
Public
Fleet management based on OpAMP. A Rust implementation of OpenTelemetry's OpAMP protocol with an API-first server and a native client that supervises many agents.
- Rust
- OpAMP
- Hexagonal
- Specs + ADRs
Markus Brigl · Model-driven and spec-driven development
SoftwareArchitect
I'm a software architect and fullstack developer in the field of model-driven and spec-driven development.
Product Owner at Würth IT Italy, Bolzano
INPUT
Model and spec
CORE
Generator · agent
OUTPUT
Running software
23 yrs
building software, since 2003
8 yrs
as CTO, 2016 to 2024
CAFM · GIS
enterprise domains
01 / Vision
Models and specs outlive the stack
Software should be described by what it means, not by the technology it happens to run on.
Since 2003 I have worked on one idea: describe the system first, then let tools produce the technology. From UML-based ERP frameworks and an Eclipse code generator to a low-code platform on hexagonal architecture, the stack changed many times. Today, with AI in the loop, the written specification takes the same role: specs and architecture decisions define the intent, and coding agents build against them. What stays is the description of intent.
STAYS
Model and spec
The description of intent
2003
ERP/CRM platform
Model-oriented Java · UML
2005
Eclipse code generator
UML2 designer · enterprise Java
2016
Low-code CAFM platform
MDA · hexagonal · Java, C++, Rust
2026
Spec-driven with agents
Specs · ADRs · coding agents
01
Start from the model
Describe what a system means, independent of any platform. Technologies change, the model stays.
02
Write the spec first
Specifications and architecture decision records define intent before code. People decide, agents implement, and the spec is the contract between them.
03
Keep the core independent
Hexagonal architecture keeps business logic free of frameworks, so the stack can evolve without disrupting it.
04
Generate, don't repeat
Generators, templates and coding agents turn models and specs into running code, so effort goes into decisions instead of boilerplate.
02 / Projects
Selected projects
Selected repositories from my account and from the HiveVM organization.
hivevm/waggle
Public
HiveVM CC, a parser generator forked from JavaCC. Tree building is defined inside the grammar; a Gradle plugin generates parsers in Java, C++ or Rust.
- Parser generator
- Gradle plugin
- Java · C++ · Rust
hivevm/comb
Public
Node-based visual workflow engine and UI coordinator. A browser node editor on WebGL2 with a Rust engine compiled to WebAssembly, built for tens of thousands of nodes.
- Rust
- WebAssembly
- WebGL2
- Specs + ADRs
hivevm/ocelli
Public
View and edit Git repositories. A Git client that draws history as a lane graph, as desktop app (Tauri), terminal app or read-only remote server.
- Rust
- Tauri
- Git
- Web UI
hivevm/libgpkg2
Public
SQLite loadable extension for GeoPackage file access. A fork of luciad/libgpkg, revived with a specification, conformance notes and ADRs.
- C++
- GeoPackage
- SQLite
- Specs + ADRs
hivevm/nuc
Public
Template for agentic development in a Dev Container. A written specification and architecture decision records guide the work, and one AGENTS.md rules file is read by all coding agents.
- Spec-driven
- Dev Container
- AGENTS.md
03 / Career
Platforms built from models
Every role since 2003, from a UML-based ERP platform to product ownership with AI in development.
2026 – today
Product Owner · Würth IT Italy
NetEye: monitoring, observability and security
Product Owner of NetEye, with around 100 people across development and sales. Responsible for backlog, roadmap, stakeholders and prioritization up to the product vision. Brought AI into development at scale and fostered communication between the teams.
- Product ownership
- Roadmap
- AI-assisted development
2025 – 2026
Software Engineer · PRO DATA
ERP for crafts, fruit and wine growing
Senior engineer in a small team. Modernized the development process from Subversion to Git with automatic builds, built a container-based integration test environment on real databases and introduced code generation for business applications. Brought in a graphical scheduler and declarative modeling, and developed a tunnel with automatic updates for secure remote access to customer devices such as POS systems and printers via the cloud.
- Git
- Containers
- Code generation
- Remote access
2007 – 2024
CTO & Partner · TOL GmbH
FEATURED · 2016 – 2024
CTO · TOL GmbH
Enterprise low-code application platform for CAFM
A model-driven low-code platform for Computer-Aided Facility Management, used by large enterprise customers with several thousand employees. Every customer solution is described purely by a model of data, business logic, processes and UI, so it stays independent of technology and platform, and updates reach customers without software rollouts. Hexagonal architecture abstracts every dependency. Led a team of five to six developers in Bolzano and delivered full-stack, with clients for web browsers and native mobile devices.
- Backend
- Java, C++, Rust
- Frontend
- GWT, C++/Qt
- JavaScript engine
- V8
- Architecture
- MDA, hexagonal
2016
Territorium Online integrated into TOL GmbH
2008 – 2016
Software Architect & Partner · Territorium Online
WebGIS 3.0 and mobile GIS
The third generation of the WebGIS platform, at around 30 customers, mostly public administrations, with several thousand users, built with a team of three to four. A layered architecture on the WMS and WFS standards, a UI fully in JavaScript and communication via REST. Native mobile apps for iOS and Android capture data in the field, store it offline and synchronize it, rendering maps on the device through a port of the MapServer C library. A model-driven web application brought GIS into facility management.
- WMS/WFS
- REST
- C++/Qt
- UMN MapServer
- pgRouting
2007
Software Developer · Territorium Online
Web GIS for public administrations
A web GIS application for public administrations in northern Italy and southern Germany, in a team of two. Designed an architecture with a clear separation of UI and business logic, and introduced version control and a ticket system.
- JavaScript
- HTML5
2005 – 2006
Co-founder & CEO · Alpisco
UML2 designer and code generator for Eclipse
Co-founded with two colleagues to make software modelable end to end. A graphical UML2 designer plugin for the Eclipse IDE with automated code generation for enterprise Java applications and business process automation.
- Eclipse
- UML2
- EJB
- Linux
2003 – 2004
Requirements Engineer · Würth Phoenix
Model-oriented Java platform for ERP/CRM
A model-oriented Java platform for building ERP/CRM systems, which became the basis of the ERP system for the Würth Group. Grew from platform developer for the application layer to Requirements Engineer of the entire platform, in a team of about 15.
- UML
- Java
- Linux