Can you link to both the Maru community and the reborn Nile work? I've always tried to follow the latter, but [1] seems to be the only place to find information and it's been silent for a long time.
Dan did a demo of a related language to Nile at Oracle Open World in September 2019. (Full disclosure: I worked on the demo.) I would predict that more information will be forthcoming about Nile this year.
[1] https://groups.google.com/g/maru-dev
[2] https://www.oracle.com/openworld/on-demand.html?bcid=6092429...