The recent news of Qualcomm acquiring Arduino has stirred both excitement and unease in the maker and open-source hardware communities. Reports suggest that Arduino will retain its brand, tools, and mission under the deal and will continue to support chips from multiple manufacturers. Even so, the move raises several concerns about the future of Arduino, especially for hobbyists, educators, and smaller developers. Here are five reasons why I’m personally worried about this acquisition, based on what’s been shared publicly so far.