Use the arkanium-build script to build your customlinux images.
```shell
$ sudo arkanium-build customlinux
```
Once done you can find compressed and uncompressed copies of your new image in the `target` directory.
Arkanium will by default generate a psuedo-random hex string and use this as the name of your image. This behaviour can be overwritten by assigning a custom name to the `ARKANIUM_OVERWRITE_RANDOM` environment variable.