The non-contrib Debian one doesn’t come with guest additions, meaning it used rsync instead of Virtualbox shared folders to sync files, meaning edits made in the VM didn’t get propogated back to the host, meaning I got very confused for a while.
Thanks to the parent commit, this shouldn’t be an issue at all: the default user name, which is now “ubuntu” instead of “vagrant” is specified in a lot fewer places, making it much easier to change.
See the README section for more details. Basically, with this way, we can store a bunch of existing valid exa outputs, change a VM's environment to match our values, then check that exa still works by comparing outputs.
