I didn't write about it, but a while ago @davedarko agreed to make a video about soldering this project, and you can watch it on YouTube here:
There is now a second video, made by @blitzcitydiy, and you can watch it here:
It really makes me happy to see that people care about something I made to make a video about it unprompted. I also love the professional quality and clarity of both of those videos! They are really well done.