Dependencies not automatically installed

I'm trying to run vhs on Ubuntu 22.04.1 in an LXC container. Image coming from the LXC image repos.

```
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.1 LTS
Release: 22.04
Codename: jammy
```

I create a non-root user and install vhs following the instructions in the vhs readme. When I run `vhs < demo.tape` it starts to process, but then fails with an error saying I'm missing a library. I end up having to install several libraries.

sudo apt install libnss3
sudo apt install libatk1.0-0
sudo apt install libatk-bridge2.0-0
sudo apt install libcups2
sudo apt install libxcomposite1
sudo apt install libxdamage1

Start with the installation instructions in the vhs README and reproduce the `vhs < demo.tape` command on Ubuntu 22.04.1 in an LXC container. Check how the listed libraries are handled during installation; done means a fresh non-root setup does not fail because these dependencies are missing, or the required setup is clearly documented.

Written by the indexing model from the issue text.