Not to be confused with Erlang, especially since this is not a language, but a subset/extension of an existing language (R)
Р (er) unofficially: Я is a set of subsets for the R programming language that enable native Cyrillic-based language support, making it easier to program in R in 20+ different languages.
The Er source trunk currently contains partial support for the following language:
- Ukrainian (
uk-ukr)
Support for 20+ other languages is coming soon.
Documentation is located 
Here
Basic summary:
Title: Er extension for R
- Native spelling: Р
-
- Lowercase: р
- Faux Cyrillic name (do not use): Я
-
- Lowercase: я
- Goal: A multi-language extension for R that makes the language more compatible with Cyrillic-based languages
File version: 2 (2023, Monday, May 29th at 9:37 pm PST)
