Kernel Samepage Merging (KSM) is pure magic 🪄. The Linux kernel can scan memory and deduplicate pages that store the same info. Huge savings for hypervisors (http://ludus.cloud). Here I am running 92 VMs (23x router, DC, Win 11, Kali) on a NUC 🤯. Savings really show up when you run many copies of the same VM, like for example, when running lots of CTF target machines for DEF CON... 😉