-
InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The article name-checks IJ, but they have a separate projectional language workbench: https://github.com/JetBrains/MPS#readme
Allegedly early version of their issue tracker were written in it, so it's apparently been used in anger and TIL that GitHub even tracks "JetBrains MPS" as a recognized language: https://github.com/search?q=mps+language%3A%22JetBrains+MPS%...
I've done some limited experimentation with this[2], and it seems like a quite powerful technique for programming. I was inspired by this demo[1] of Dion from 2020. (The first video is amazing)
[1] https://media.handmade-seattle.com/dion-systems/
[2] https://github.com/mikewarot/TreeHouse