Run 50 VMs each with a different Linux

Ever wondered how different Linux distributions compare when running side-by-side in real environments? In this ambitious and eye-opening project, I’ll teach you how to run 50 virtual machines (VMs), each running a different Linux distribution, all from a single system — turning your machine into a massive virtual Linux test lab.
This Lab is perfect for Linux enthusiasts, distro hoppers, system administrators and developers who want to explore the vast Linux ecosystem in one unified, hands-on environment. You'll walk through the setup of a virtualization stack using tools like VirtualBox, QEMU/KVM, or Proxmox, and then optimize your hardware to support dozens of simultaneous virtual environments.
I’ll cover practical tips on resource allocation, disk space management, network bridging, and automating VM deployments using tools like cloud-init, Vagrant, or custom Bash scripts. You’ll also learn how to create snapshot backups, monitor system performance, and deal with I/O bottlenecks and RAM limitations.
Each Linux distro you install — from mainstream giants like Ubuntu and Fedora to niche systems like Alpine, Void, Haiku, or NixOS — will bring its own quirks, package managers, systemd alternatives, and user experiences. This isn’t just a showcase — it’s a crash course in understanding the diversity, design philosophies, and performance profiles of the Linux universe.
By the end, you’ll not only have 50 VMs up and running — you’ll have a powerful, self-curated Linux encyclopedia you built yourself, all running on your own hardware.