Open source does not just apply to electronics or PCBs. OSHW can work for almost anything. This house embraces the open-source concept and uses the OSHW logo as the opening for the birds, The "key-hole" has been folded down and rounded to make the perch. The house is designed to be printed as individual parts and assembled. It is meant to be pole-mounted and has a fitting for a dowl rod for easy installation.