Matthias Wagner

Matthias Wagner is a cofounder of Flux, a browser-based printed circuit board (PCB) design platform. His public explanations of Flux Copilot describe an AI assistant that works with circuit context while leaving engineers responsible for design judgment. Stellar Work identified him as Flux’s founder and CEO in March 2026; Flux’s author biography also identifies him by the handle @natarius.[4][2][6]

In his April 26, 2023 Copilot launch explanation, Wagner described a Flux-trained language model operating within the designer’s project. Copilot used schematics, component lists, connections, and datasheet information to assist with part selection, compatibility questions, and design review. Interaction through project comments placed the assistant within the team’s collaborative design workflow.[2]

Wagner illustrated the approach with two concrete requests: “Please find me a drop-in replacement for component U1” and “Please explain the function of U1 in this circuit.” These examples connected assistance to a particular component and its circuit context. He also set an explicit limit: launch-time responses were not guaranteed to be fully accurate, and Copilot was “not as a substitute for the designer’s judgment or expertise.”[2]

The engineering work was collective: PCB Chat’s March 12, 2024 episode notes credited Flux’s engineers with training and integrating the language model. The episode covered an expansion into image inputs, including uploaded block diagrams from which Copilot could recommend parts.[4]

In his May 19, 2025 explanation of Copilot Knowledge, Wagner connected persistent memory to the downstream consequences of component choices, naming conventions, and review processes. Knowledge stored reusable instructions and workflow guidance, such as preferred component manufacturers, net naming conventions, and testing checklists. His opening formulation was direct: “In hardware design, you can’t afford to forget.”[3]

The feature made saving and applying that guidance a user-controlled process. Copilot could propose a Knowledge entry during conversation; users could accept, reject, or refine it. Each entry contained an instruction summary, a task trigger, and a scope. Project-level knowledge applied only within its saved project, while user-level knowledge carried across future designs. Wagner recommended reviewing generated entries for accuracy and choosing their scope deliberately, allowing general standards and project-specific exceptions to coexist.[3]

Before these AI product explanations, Wagner worked in product management and teaching. Stellar Work’s March 2026 biography reports that he held product management positions at Meta, taught at General Assembly, and founded Flux in 2019. Those earlier roles provide context for the product and instructional work visible in his later explanations of hardware design assistance.[6][2][3]