Install inform-mode by entering the following commands in the terminal:
sudo apt update sudo apt install inform-mode
Description:
Emacs mode for editing Inform files
This is an (X)Emacs mode for editing Inform source code. Inform source is used when writing games for the Z-Code virtual machine (aka Infocom). This package will add an editing mode to your favorite Emacsen for editing these files.
Homepage: https://www.rupert-lane.org/inform-mode/
Version: 1.5.8-4
Section: universe/editors