Resuming my role as devil's advocate: How do you know they wrote them? How do you know I didn't write your new candidate's project for them? And it should be

Resuming my role as devil's advocate: How do you know they wrote them? How do you know I didn't write your new candidate's project for them? And it should be asked, why is spending hours and hours building open source software outside of your day job a reasonable requirement? Doing open source well is incredibly difficult and requires a different skill set than working as a developer. If you want to sit in front of a computer for several hours, then go home and do it all over again for free for the community, that's great. Sincere thanks are in order for that. But requiring it from all your candidates is unreasonable IMO.