Let's see how many layers we can go! TailsOS as both your VM and Host OS. You could add TailsOS to the drive so still all you need is that USB stick and any random computer you can set the boot order on.
Discussion
another potential configuration:
a "blank" Tails boot stick with no persistent volume
a separate USB stick with a whole-device Veracrypt partition, which once created resembles a device that's been securely overwritten with random data (provided you actually do so before creating the Veracrypt partition, or have Veracrypt do it for you)
then, mount the Veracrypt stick from within Tails, and have scripts to install/set up stuff as needed after boot