@Pietro-Vannucci you may have to un-comment repos in the repo list distfeeds.conf. by entering command opkg list | grep transmission the following daemons were listed.
transmission-daemon-mbedtls - 2.92+git-5 - Transmission is a simple BitTorrent client. It features a very simple, intuitive interface on top on an efficient, cross-platform back-end. This package contains the daemon itself.

transmission-daemon-openssl - 2.92+git-5 - Transmission is a simple BitTorrent client. It features a very simple, intuitive interface on top on an efficient, cross-platform back-end. This package contains the daemon itself

transmission-daemon-openssl - 2.92+git-4 - Transmission is a simple BitTorrent client. It features a very simple, intuitive interface on top on an efficient, cross-platform back-end. This package contains the daemon itself.