Fixing the Nostalgia bicycle

I got a free Chinesium bicycle with a broken bottom bracket. Let's find out if I can get it Roling again :)
The bike is called Nostalgia. And it looks a bit like an old school bicycle from the 40s, with its double steel top tubes. But it's all retro make believe, made with cheap Chinese components. And it's probably not worth the time and effort to fix it, but I'm going to try anyway, it might make an interesting video, for some. As far as I can tell, all it needs a new bottom bracket. Let's find out how much of a struggle that will be, for a amateur d.i.y. bicycle mechanic.

Hires pictures of this bike can be seen here: https://photos.app.goo.gl/q7B2oXdKQy2...