jtail(1) is a clone of tail(1) for systems that does not have a full featured tail(1). But it may have a couple of options not found in tail(1).
If tail(1) exists on your system, you should use that instead. It will be much faster.
Compile Instructions are in the README File inside the tarball.
$Id: jtail.gmi,v 1.4 2023/10/17 15:30:20 jmccue Exp $