I'll echo this and also say that you should target companies where remote work is the norm, not companies were remote work is allowed but not actually feasible.

I'll echo this and also say that you should target companies where remote work is the norm, not companies were remote work is allowed but not actually feasible. I've worked at 3 employers that allowed some degree of remote work. At two of them, everybody worked at home at least 1 day a week and some people were 100% remote. Everybody understood that somebody was going to be remote for any given meeting, so web conferences were standard in every meeting. People also called/chatted with each other when needed. Focus on companies like this for a weekend project. These are the places which are open to remote work and are open to addressing the issues with it. I worked at another company where HR encouraged work from home, but there was no enforced standards and the company had a strong history of butt-in-seat time. The end result was that any work from home (even for a day) was perceived as slacking off and adding a web conference to a meeting was seen as an massive inconvenience for the people who were willing to attend meeting face to face. This company did not need a tool to help them with remote work, they needed an organizational change.