Version 2.0.2 of package J-Mode has just been released in NonGNU ELPA. You can now find it in M-x list-packages RET.
J-Mode describes itself as: ================================= Major mode for editing J programs ================================= More at https://elpa.nongnu.org/nongnu/j-mode.html ## Summary: Provides font-lock and basic REPL integration for the [J programming language](http://www.jsoftware.com) ## Recent NEWS: [Not provided 🙁]
