Following on this, are there websites that lists non-profits that needs software engineers, especially for volunteering? Or is you best bet to find a local plac

Following on this, are there websites that lists non-profits that needs software engineers, especially for volunteering? Or is you best bet to find a local place and go ask? If anyone has experience volunteering with software, I'd love to hear your experience. I wish I could put my Excel skills to good use.