Ocean's DATUM is a quick'n'dirty hack to a real problem; it's a hack but it works, and one can relatively easily mine his own template in a pool with it.

The Datum Gateway is written in old school C, and it's an unusal feeling that you can clone the repo, configure and build all in less then 30 seconds!

Overall I consider it a positive development, however, in the long run I would put my bet on Stratum v2.