Many commertial apps have options to run apps at logins… Is there any cross-platform way to do so in python or other languages?
The ways to register programs to run at startup vary wildly from platform to platform but they’re all relatively simple. I might suggest you just look into how to do it manually before looking for a library since it’s extremely trivial (at least on windows/Linux - I’m not familiar with how macs do it but I hope it’s the same approach as linux).
If it is trivial in linux, it shouldn’t be vary wildly. But the reality is that most people just assume systemd and everything else is an after though. I agree that it would be nice if there is a single API that we can agree on, but adding another standard just making things worse. I’d say it is not that trivial due to the variety but also not that hard to do for each.
I’m pretty sure that even if systemd is in place you can still use
/etc/init.d
No.
Too specific I guess.