Added in sample plugin and tested things out. Works.

data/core/init.lua

@@ -426,6 +426,8 @@ function core.init()
   NagView = require "core.nagview"
   DocView = require "core.docview"
   Doc = require "core.doc"
+  local PluginTest = require "plugins.sample"
+  print(PluginTest.example)
 
   if PATHSEP == '\\' then
     USERDIR = common.normalize_path(USERDIR)
@@ -675,7 +677,6 @@ local function check_plugin_version(filename)
   return true, version_match
 end
 
-
 function core.load_plugins()
   local no_errors = true
   local refused_list = {

data/core/start.lua

@@ -19,4 +19,5 @@ package.path = DATADIR .. '/?.lua;' .. package.path
 package.path = DATADIR .. '/?/init.lua;' .. package.path
 package.path = USERDIR .. '/?.lua;' .. package.path
 package.path = USERDIR .. '/?/init.lua;' .. package.path
+package.cpath = DATADIR .. '/?.' .. (MACOS and 'lib' or (WINDOWS and 'dll' or 'so')) .. ';' .. package.cpath
 package.searchers[3] = system.searcher_plugin