# ard-004
## Problem
There needs to be an inter-process interface available at a distance between the
CRDT sync server and the UIs.
## Options
- Internet
- Web
- REST API
- GraphQL API
- Gopher
- DNS
- Landline
- Carrier pigeon
## Decision
REST API. GraphQL is unfamiliar to me, and REST is adequate. All the other
options are silly.