Best way to include a startup service into the Angstrom build?

I want my compiled rootfs to contain a service that runs at startup, what’s the best way to include this into the angstrom build?

Whatever the Angstrom equivalent to Debian/Linux /etc/init.d is. It may even be /etc/init.d but I’m not sure because I run Debian on my BBB.

Angstrom does not use init.d. It uses the newer systemd methods.

Instructions on how to get a user process to run after boot are included in the following reference. The comments need to be read, also – since they contain a correction.

The article references starting a user “C” program, but it should work for any executable that is set up correctly (python scripts, etc…)