This script allows you to launch Twister through RTT.
./scripts/twister <your option> --device-testing --west-flash="--erase" --west-runner nrfjprog --device-serial-pty ./rtt.py
./scripts/twister --board-root <path-board> --extra-args=BOARD_ROOT=<path-board> -k --device-testing --west-flash="--erase" --west-runner nrfjprog --device-serial-pty ./rtt.py