loadwatch is obviously not maintained anymore.
I am hereby orphaning it. Please only consider adopting if you can afford the time.

Description: Run a program using only idle cycles
  loadwatch forks a child process and only allows it to run when the
  system load meets user-defined parameters. It allows you to specify
  that a program should run only if the load is below a specified
  point, and will stop it when that point is reached. When the load
  falls below a second specified point, the program will be
  continued. The user can also specify the system load sampling period.

retitle 1047904 ITA: loadwatch -- Run a program using only idle cycles
owner 1047904 !
thanks

I am adopting this package. I am a new contributor and I want to
use this package to learn more about Debian packaging standards
and help maintain this utility in the archive.

Hi,

I have forked the original codebase and applied patches and small updates
for newer compilers to have this package in NixOS.

https://git.sr.ht/~woffs/loadwatch

You're welcome to use this, take this over or fork again or whatever. :-)

Viele Grüße,
Frank