Comment 10 for bug 1973084

I'm not comfortable with make install.

It seems to be caused by openssl3 patch. I reverted it and used gentoo openssl3 patch, transmission is under 122Mb now instead of 10s of gigabytes.

https://gitweb.gentoo.org/repo/gentoo.git/tree/net-p2p/transmission/files/transmission-3.00-openssl-3.patch

You can try this ppa: https://launchpad.net/~elhana/+archive/ubuntu/ppa-elhana
I've just enabled arm64 build on ppa (apparently you can now).