Liberux is a Linux mobile phone being developed and built in Spain. This interview with the founders reveals a lot about their philosophy.

https://linmob.net/liberux-nexx-an-interview-with-liberux/

"We want the Nexx to be open source hardware, which is why we’ll release the schematics with the first units shipped. Other assets (like full mechanical designs and manufacturing files) might come a bit later. Our initial idea was to release everything once we hit about 10,000 units sold. What matters most to us is building something open and transparent—even if we have to take it step by step."