open source hardware
Computer numeric control (CNC)
Fab lab
Hardware backdoor
List of open-source hardware projects
List of open-source mobile phones
NVDLA (NVIDIA Deep Learning Accelerator)
Open-source robotics
Open innovation
Open manufacturing
Open Source Ecology
Rapid prototyping
Reuse
RISC-V, an open-source computer instruction set architecture
Simputer
https://en.wikipedia.org/wiki/Open-source_hardware