Use vagrant up from within this directory, then vagrant ssh.

The first time it gets used, there might be an error about Ansible. No worries, just do vagrant reload --provision (there is a bug in the way Vagrant and Ansible get along).

If you modify the Ansible playbook then use vagrant reload --provision.

Shut down the VM with vagrant halt. Use vagrant destroy to completely get rid of the VM if you have messed it up and want to start again.

The Vim setup needs you to do a :PluginInstall the first time.

ssh_rc and a couple of lines in the tmux_conf are required for ssh agent forwarding to work within Tmux.