What's the modern way to schedule jobs running on a computer? Is there anything better than cron? Context is data warehousing extract-transform-load jobs. Not interested in anything proprietary.
Have you looked at launchd, the new all-purpose task control daemon? Don't be put off by the fact that it's from Apple--it's open source, licensed under the APSL, which I believe is GPL-compatible, if you care about that kind of thing. It seems to offer many of the features you want, including task scheduling, preemption control, etc.
CounterSocial is the first Social Network Platform to take a zero-tolerance stance to hostile nations, bot accounts and trolls who are weaponizing OUR social media platforms and freedoms to engage in influence operations against us. And we're here to counter it.