Ask HN: Do you know of any agile volunteering projects? (Crowdsource Experiment)

Whenever I travel through another country, I look out for volunteering projects along the way. I always find these places by accident without really knowing where to look for them. Maybe it is the same for you. I want to change that by having one place to find these agile volunteering projects. The GitHub repository is an experiment to crowdsource these projects. Maybe you know a project or have heard of one that would fit in the list. What projects have you participated in while travelling to give something back? (Maybe there is already such a list but I couldn't find it.) https://github.com/rwieruch/crowdsourced-volunteering-list