uhhh… the link is „up“ for me?
That was actually pretty helpful. It made me realize I could solve the problem by using my phone as a proxy.
Crossing my fingers that this version carries the same fix that was available on the RetroPi iteration.
Edit: For the record, yes, that two-month-old build did in fact carry the fix for the menu bug. So if anyone down the road finds this post and has similar troubles getting the nightly build link to work, try using a proxy.