Vita is a high-performance IPsec VPN gateway designed with medium and large network operators in mind. It is written in a high-level language (Lua) using the Snabb networking toolkit and achieves high performance via networking in userspace, i.e. bypassing the kernel network stack. This talk will discuss Vita and how it was developed using Snabb. Topics include: fast software networking using a dynamic, high-level language; cryptographic ciphers implemented in software software accelerated by x86 extensions; modern cryptography; limiting complexity; multi-core scaling; YANG enabled control planes; minimalist NIC drivers.