I have something like an old workstation..early-gen Intel Xeon box, it can easily handle containerized apps (Docker). Even a machine with 4GB of RAM can comfortably run a dozen lightweight services simultaneously if you stick to the terminal.
Although reasonably fast, because 286 architecture limited the memory expansion it was quickly superceded by 386/486.
Slackware Linux was a great way to maximise its potential and prolong it’s usefulness. It was also a good way to allow sharing of the one dialup connection between the family’s hardwired network devices. No WiFi in those days.