I see that building csources on termux now works:
pkg install libandroid-glob-dev libandroid-glob git clang nodejs pcre
pcre-dev libsqlite
git clone https://github.com/nim-lang/Nim
cd Nim
git clone --depth 1 https://github.com/nim-lang/csources
cd csources
sh build.sh --os android
cd ..
However, when I try to run
bin/nim compile --os:android koch
I get an error that /bin/sh isn't found. I edited lib/pure/osproc.nim as
suggested [here](http://stisa.space/articles/compile-nim-on-android/) but I
still get the same error.