VPP nix flake

This flake provides the VPP package from https://wiki.fd.io/view/VPP

Building

In order to build the standard flake, run:

$ nix build github:tfc/vpp-flake

This repo does not need to be checked out for this.

The build can be omitted by using cachix with the cache that is used by this repo's CI:

# run this before doing the build step
$ cachix use tfc