Seeing comments from few homeless folks here, I wish you good luck and hope your situation changes. I have a very different image in mind when it comes to homeless people and having to live on roadside let alone afford a phone and time to comment on hacker news.
Phones are pretty cheap, and probably essential for finding work and staying in contact with family/other resources, and I imagine a homeless person has time more than anything else. I'm also a bit surprised at first when I see a post from someone is such a different economic situation here on HN but logically it makes sense. (I recall seeing an engineer in Palestine post in a recent Who wants to be hired? and I tread similar thoughts.)