What's happening with Dlang on Android?

[Bill Early]

As I suddenly have a lot of time on my hands, I want to get a 
couple of my D applications running on Android.  I've been 
noodling around with D (Windows) for a number of years but 
haven't done anything at all on Android until this morning when I 
installed Termux.

Starting with the instructions here

https://wiki.dlang.org/Build_D_for_Android#64-bit_ARM_2

I'm attempting first to get ldc installed on my phone using 
Termux using the instructions under "Native compilation"

apt install ldc

(in short, lots of errors, not installed)

apt install ldc --fix-missing

(no joy, lots of errors, 404 etc)

apt-get update

(no joy here either, signatures could not be verified, no public 
key, etc)

Seems that the dependencies are very stale and/or very missing.

As I am just starting out and have no investment in any 
development infrastructure, no Xamarin, no Android Studio, what 
would you suggest?

Back to "Cross-compilation" in the same instructions?