Add solution and/or docs for making it easy to pull in resulting libs to init.vim/init.lua

[turboladen]

Right now, for pulling in turboladen/init.rs (my init.rs, defined using the crates here), I've got this at the top of my init.vim:

lua << RUST
local ffi = require("ffi")

ffi.cdef [[
    void init(void);
  ]]

local project_path = "/Users/steve.loveless/Development/projects/init.rs"
local suffix = ffi.os == "OSX" and ".dylib" or ".so"

local lib = ffi.load(project_path .. "/target/release/libinit_rs" .. suffix)
lib.init()
RUST

...but this is neither flexible, nor easily-distributed. I share my dotfiles across computers using YADM and would like to commit my changes made to init.rs (or should that project really just be one in ~/.config/nvim/? 🤔) so they can be used on my other environments.

Either make a tool/whatever that makes this easier, or at least document how to use existing tools to automate this.