A selection-based text editor with simplistic interface.
You can select multiple lines and have a cursor on them all at the same time.
You can have a selection on line that includes many characters.
You can then execute actions on the lines with those selection.
See the full command list here
Building requires stack
and nothing else.
You can get it here
After you got stack, run the following commands:
git clone https://github.com/d86leader/hed.git
cd hed
stack build
Then to run hed simply execute
stack exec -- hed-exe