Marcel HoferPersonal Portfolio
System statusSelected collaborations

01 Home module

GitHub / Handlegoodguy1963

Technical Creative Generalist

I turn AI workflows, software, and physical ideas into focused systems that people can actually use.

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Location
Tyrol, Austria / Remote
Focus
AI · Software · Product
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02 Selected work

Five systems.
One way of working.

Each project starts with a complicated workflow and ends with a tool that makes the next step clearer.

ProductBackground landing page with its production backplates message 01 / 05

AI product imaging platform

Product­Background

A solo-built platform that turns product cutouts into professional scenes through background generation, relighting, outpainting, and commercial upscaling.

  • Next.js
  • ComfyUI
  • RunPod
  • Supabase
View case study Live site
Copilot Cockpit extension interface 02 / 05

Developer tooling / VS Code

Copilot Cockpit

A persistent control layer for planning, approval gates, recurring work, and bounded AI-agent execution inside VS Code.

  • TypeScript
  • VS Code API
  • Webviews
  • Agent workflows
View case study GitHub
ThinkingLLM nodes in a ComfyUI workflow 03 / 05

Open-source AI tooling

ThinkingLLM

ComfyUI nodes for local multimodal language models with explicit thinking control, live streaming, audio and vision workflows, and raw trace output.

  • Python
  • ComfyUI
  • Transformers
  • llama.cpp
View case study GitHub
Comfy Rail production AI runtime and API route diagram 04 / 05

Production AI runtime

Comfy Rail

A maintained ComfyUI runtime system for RunPod Serverless, split into versioned generation, editing, and upscaling profiles behind one stable API contract.

  • ComfyUI
  • RunPod
  • Docker
  • TypeScript
View case study Live site
Black Bull and Bear wireframe sculpture by 3DOfficeAT 05 / 05

Physical product design

3DOfficeAT

An independent design practice for meaningful wireframe sculptures, custom company models, and production-ready 3D-printed objects made in Tirol.

  • Parametric design
  • Resin printing
  • Digital fabrication
  • Product systems
View case study Live site

03 Capabilities

Across the whole system.

Useful products rarely stop at one discipline. I move between strategy, interfaces, code, workflows, and the physical prototype.

01

AI Workflow Engineering

ComfyUI systems, model integration, inference pipelines, prompt tooling, and GPU deployment.

02

Full-Stack Product Building

From product logic and UX to APIs, storage, payments, deployment, and operational tooling.

03

Developer Tooling

Extensions and control surfaces that make AI-assisted work visible, reviewable, and repeatable.

04

3D Design

CAD, visualization, design iteration, and production-aware modelling in Fusion 360.

05

Digital Fabrication

FDM and resin printing, materials, slicer workflows, troubleshooting, and process refinement.

06

Hardware Prototyping

Enclosures, component integration, electronics, PCB concepts, and functional prototypes.

Portrait of Marcel Hofer
Selected collaborationsTyrol / Remote

04 System profile

Curious enough to cross disciplines. Practical enough to finish.

My work sits where digital tools meet materials, machines, and people. I learn by building, reduce complexity through iteration, and care about the last mile between a technical possibility and a usable product.

01Understand the real workflow before choosing the technology.

02Make progress inspectable through prototypes, tests, and visible decisions.

03Connect disciplines instead of optimizing one layer in isolation.

Selected experience

2019 — now

  1. Workshop Tutor · MCI

    Technical support across prototyping, 3D printing, and hands-on problem solving.

  2. Founder · 3DOfficeAT

    Independent product design, digital fabrication, and prototype development.

  3. Independent AI Product Work

    ProductBackground, Comfy Rail, public model deployments, ComfyUI tooling, and developer systems.

  4. Project DAD

    A functional digital-signage product prototype spanning hardware, design, and business.

Relevant education

2023
Plastics Processing / 3D PrintingWIFI St. Pölten
2022
Entrepreneur ExaminationBusiness and operations foundation
2019—2020
Commercial TrainingRetail and office administration

05 Curated archive

The wider body of work.

Earlier products, practical teaching, and physical experiments that shaped how I build today.

2019—2022

Hardtech / Digital signage

Project DAD

A cloud-controlled, compact display prototype with enclosure, PCB and Compute Module integration, business model, and demo-ready hardware.

Since 2023

Design / Digital fabrication

3DOfficeAT

An independent practice for designed objects, production-ready 3D printing, and customer-specific fabrication projects.

View selected 3DOffice work
Since 2024

Workshop / Technical support

MCI Standort 4

Supporting students and technical teams in prototyping, fabrication, materials, and practical problem solving.

Ongoing

Experiments / Prototypes

3D & Hardware Studies

Functional planters, large-format FDM pieces, materials research, machine tuning, and one-off product experiments.

06 Contact

Let’s build something useful.

I’m open to selected collaborations and roles where technical curiosity, product thinking, and hands-on execution belong together.

Emailmarcel@3doffice.at GitHubgoodguy1963 LinkedInMarcel Hofer