To install from source cd into the downloaded tree and simply run:
  make

Read what is offered and run the command of your choice with root-power.

However, should you be on a non GNU system, or using a somehow special
distribution which only has a BusyBox, please see there:
  https://github.com/loh-tar/tbsm/issues/9

After successful install it may wise to run:
  tbsm doc man    # Most notably chapter 3
  tbsm help

And in case of an update:
  tbsm doc notes
