This blog post discusses the advantages and implementation of rootless virtual machines (VMs) using KVM and QEMU within the libvirt framework. It highlights the security benefits of running VMs in a session mode, properly isolates them from host resources, and provides practical steps for setting them up, including networking configurations. Additionally, it compares session and system VMs and offers a proposal for easier networking access to rootless VMs. It emphasizes the efficiency and reduced risks associated with using rootless VMs for developers and IT professionals.