[paulddraper]

Downvoting makes no sense.

https://www.google.com/search?q=systemd+add+units+programmat...

You can do it either via the CLI (systemd-run), or via the D-Bus API (StartTransientUnit).

[paulddraper]

PS There's even systemd.generator for a hybrid approach.

SystemD has no dearth of programmable options.

[sureglymop]

I didnt downvote and I appreciated your reply. Just to let you know :)

I have tried available options including generators.