When invoking `sudo`, you're escalating privileges on the command followed but that doesn't apply to the redirection of output (`>`). So it's saying permission denied to write to the files. You'll need to do something like `curl | sudo tee /path/to/file`. Same with `echo`.

Try one command at a time:

export DISTRO="focal"

sudo curl https://repo.waydro.id/waydroid.gpg > /usr/share/keyrings/waydroid.gpg

sudo echo "deb [signed-by=/usr/share/keyrings/waydroid.gpg] https://repo.waydro.id/ $DISTRO main" > /etc/apt/sources.list.d/waydroid.list

sudo apt update

Try this command (sudo is needed only for writing files):

  DISTRO="focal"

  sudo curl https://repo.waydro.id/waydroid.gpg -o /usr/share/keyrings/waydroid.gpg

  echo "deb [signed-by=/usr/share/keyrings/waydroid.gpg] https://repo.waydro.id/ $DISTRO main" | sudo tee /etc/apt/sources.list.d/waydroid.list

  sudo apt update
  sudo apt install waydroid

this worked for me, thank you very much potyl!

Oh it almost worked! I got as far as the apt install waydroid this time.

However, it gave me this error:

The following packages have unmet dependencies: python3-gbinder : Depends: python3 (< 3.9) but 3.9.4-1 is to be installed

How do I downgrade python?