Hi folks,

Firstly, i am not a digitalocean affiliated, but i use their services. A long time ago, Arch Linux was one the supported OSes, latter they dropped this support. Now, although it is not officially supported again they just launched the ability to upload Custom Images into DigitalOcean. You can now import the OS of your choice directly into DigitalOcean and start a Droplet. [1]

[1] https://blog.digitalocean.com/custom-images/ --- Eduardo M. Machado