Follow the instructions as shown in the video and below are the commands you will need. Setup:
curl -o setup1.sh https://raw.githubusercontent.com/AnBui2004/termux/refs/heads/main/setupvm/11/21h2.sh && chmod +rwx setup1.sh && ./setup1.sh && curl -o setup2.sh https://raw.githubusercontent.com/AnBui2004/termux/refs/heads/main/setupqemu/setupqemuvm1.sh && chmod +rwx setup2.sh && ./setup2.sh && rm setup2.sh && rm setup1.sh && clear
Run:
./start1121h2.sh