$ emerge -pv ed
 * Last emerge --sync was Sun Mar 19 05:40:02 2023.

These are the packages that would be merged, in order:

Calculating dependencies... done!
Dependency resolution took 1.96 s.

[ebuild  N     ] sys-apps/ed-1.19-r1::gentoo  USE="-verify-sig" 65 KiB

Total: 1 package (1 new), Size of downloads: 65 KiB

LESS(1)                                                                                                                    General Commands Manual                                                                                                                   LESS(1)

NAME
       less - opposite of more

...


DESCRIPTION
       Less  is  a  program  similar  to  more(1), but which allows backward movement in the file as well as forward movement.  Also, less does not have to read the entire input file before starting, so with large input files it starts up faster than text editors like
       vi(1).  Less uses termcap (or terminfo on some systems), so it can run on a variety of terminals.  There is even limited support for hardcopy terminals.  (On a hardcopy terminal, lines which should be printed at the top of the screen are prefixed with a caret.)