I could do 2 hours of productivity after the kids go to sleep and I'd still have 2 hours for entertainment. I exercise too.
So let's make it even more reasonable. How about 30 minutes, 4 times a week?
>Meaningful progress
So then do an hour or 2? I make progress in 30 minutes and sometimes keep going. If the point is for a resume, you could even do a 1 or 2 week sprint.
I suppose you could even work on it while the kids are awake. My kids love Alphablocks.
If you don't have a personal side project, the issue isn't children. It's desire.