Cool stuff with the "slice units." I use systemd to keep apps running but didn't know all this. And yes I understand the basics of what Docker containers are. I

Cool stuff with the "slice units." I use systemd to keep apps running but didn't know all this. And yes I understand the basics of what Docker containers are. It just seems logical to me that it would be a lot more taxing on the system running that overhead. Like is it exponentially harder to fit the same amount of apps on a droplet if they're all containerized? Or is it still easy to run 4-5 modest containerized apps on a $5 droplet?