Got an old PC knocking about and but you don’t want to throw it away? Here are some amazing ways to repurpose and reuse an old computer: https://www.makeuseof.com/tag/creative-projects-reuse-old-pc/.
Comment: I have long ago built a home server, set up an external router, converted an old PC into a NAS (Network Attached Storage device), and donated some of my old PCs to charities. Don’t let an old PC gather dust in a closet! And whatever you do, never throw out an old PC in the trash! There’s numerous things you can do with “vintage” computers to make them very worthwhile for new purposes.