- Get the draw.io project from github
- Navigate to `drawio/etc/sandstorm`
- Create a directory named `build`
- [Install vagrant-spk](https://docs.sandstorm.io/en/latest/vagrant-spk/installation/)
- `cd build`
- `vagrant-spk setupvm diy`
- `vagrant-spk vm up`
- Invoke `../stage.sh` to stage the build files. gfind is gnu find on OS X.
- Log into the vagrant box `vagrant-spk vm ssh`
- `sudo apt-get install g++`
- [Install latest capnp](https://capnproto.org/install.html)
- In the build directory `vagrant-spk dev`