> Markdown version of [/@kevin](https://www.wearedevelopers.com/@kevin). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Kevin Solution Engineer at Apryse focused on the balance between open-source and proprietary ecosystems. ## About Kevin Willems works as a Solution Engineer at Apryse. He focuses on the practical realities of software ecosystems, specifically examining how commercial and open-source models work together and influence modern development. He tackles the hard questions around software quality, security, and sustainability. In his recent conference sessions, Kevin explores whether open-source and proprietary software are fundamentally at odds, and how engineering teams can successfully blend both approaches to build better products. ## Past Sessions ### World Congress 2025 · July 9, 2025 Berlin, Germany - [Kettle and Pot or Peas in a Pod? A Debate on Open-Source and Proprietary Software](https://www.wearedevelopers.com/videos/1585-kettle-and-pot-or-peas-in-a-pod-a-debate-on-open-source-and-proprietary-software) · 30 min · 🎥 Watch recording ## Videos - [Kettle and Pot or Peas in a Pod? A Debate on Open-Source and Proprietary Software](https://www.wearedevelopers.com/videos/1585-kettle-and-pot-or-peas-in-a-pod-a-debate-on-open-source-and-proprietary-software) · Kevin, Roxana Crisan