diff --git a/sys/apis/injector.lua b/sys/apis/injector.lua
index 39ee742..da6e434 100644
--- a/sys/apis/injector.lua
+++ b/sys/apis/injector.lua
@@ -1,7 +1,7 @@
 local PASTEBIN_URL   = 'http://pastebin.com/raw'
 local GIT_URL        = 'https://raw.githubusercontent.com'
-local DEFAULT_PATH   = '/sys/apis/?;/sys/apis/?.lua'
-local DEFAULT_BRANCH = _ENV.OPUS_BRANCH or _G.OPUS_BRANCH or 'master'
+local DEFAULT_PATH   = (package and (package.path .. ':') or '') .. '/sys/apis/?;/sys/apis/?.lua'
+local DEFAULT_BRANCH = _ENV.OPUS_BRANCH or _G.OPUS_BRANCH or 'develop-1.8'
 local DEFAULT_UPATH  = GIT_URL .. '/kepler155c/opus/' .. DEFAULT_BRANCH .. '/sys/apis'
 
 local fs     = _G.fs
diff --git a/sys/apps/system/path.lua b/sys/apps/system/path.lua
index d55211a..5374634 100644
--- a/sys/apps/system/path.lua
+++ b/sys/apps/system/path.lua
@@ -2,8 +2,6 @@ local Config = require('config')
 local UI     = require('ui')
 local Util   = require('util')
 
-local shell  = _ENV.shell
-
 local pathTab = UI.Window {
 	tabTitle = 'Path',
 	description = 'Set the shell path',
@@ -11,7 +9,7 @@ local pathTab = UI.Window {
 	entry = UI.TextEntry {
 		x = 2, y = 2, ex = -2,
 		limit = 256,
-		value = shell.path(),
+		value = Config.load('shell').path,
 		shadowText = 'enter system path',
 		accelerators = {
 			enter = 'update_path',
@@ -39,9 +37,9 @@ function pathTab:eventHandler(event)
 	if event.type == 'update_path' then
 		local env = Config.load('shell')
 		env.path = self.entry.value
+		Config.update('shell', env)
 		self.grid:setIndex(self.grid:getIndex())
 		self.grid:draw()
-		Config.update('shell', env)
 		self:emit({ type = 'success_message', message = 'reboot to take effect' })
 		return true
 	end
diff --git a/sys/extensions/4.user.lua b/sys/extensions/4.user.lua
index dbdbe35..49e5d91 100644
--- a/sys/extensions/4.user.lua
+++ b/sys/extensions/4.user.lua
@@ -11,25 +11,13 @@ end
 if not fs.exists('usr/autorun') then
 	fs.makeDir('usr/autorun')
 end
---if not fs.exists('usr/config/fstab') then
---	Util.writeFile('usr/config/fstab',
---		'usr gitfs kepler155c/opus-apps/' .. _G.OPUS_BRANCH)
---end
 
-local lua_path = '?;?.lua;?/init.lua'
-lua_path = lua_path .. ';/usr/apis/?;/usr/apis/?.lua'
-lua_path = lua_path .. ';/sys/apis/?;/sys/apis/?.lua'
-lua_path = lua_path .. ';/rom/modules/main/?;/rom/modules/main/?.lua;/rom/modules/main/?/init.lua;'
-if _G.turtle then
-	lua_path = lua_path..';/rom/modules/turtle/?;/rom/modules/turtle/?.lua;/rom/modules/turtle/?/init.lua'
-elseif _G.command then
-	lua_path = lua_path..';/rom/modules/command/?;/rom/modules/command/?.lua;/rom/modules/command/?/init.lua'
-end
+local lua_path = package.path
 
 if not fs.exists('usr/config/shell') then
 	Util.writeTable('usr/config/shell', {
 		aliases  = shell.aliases(),
-		path     = 'usr/apps:sys/apps:' .. shell.path(),
+		path     = 'usr/apps',
 		lua_path = lua_path,
 	})
 end
@@ -54,8 +42,14 @@ if config.aliases then
 		shell.setAlias(k, v)
 	end
 end
-shell.setPath(config.path)
---_G.LUA_PATH = config.lua_path
-_G.LUA_PATH = lua_path
+
+local path = config.path and Util.split(config.path, '(.-):') or { }
+table.insert(path, 'sys/apps')
+for _, v in pairs(Util.split(shell.path(), '(.-):')) do
+	table.insert(path, v)
+end
+
+shell.setPath(table.concat(path, ':'))
+_G.LUA_PATH = config.lua_path
 
 fs.loadTab('usr/config/fstab')
diff --git a/sys/extensions/6.packages.lua b/sys/extensions/6.packages.lua
index 04c96be..64ba8ab 100644
--- a/sys/extensions/6.packages.lua
+++ b/sys/extensions/6.packages.lua
@@ -7,7 +7,7 @@ local fs    = _G.fs
 local help  = _G.help
 local shell = _ENV.shell
 
-local appPaths = Util.split(shell.path(), '(.-);')
+local appPaths = Util.split(shell.path(), '(.-):')
 local luaPaths = Util.split(_G.LUA_PATH, '(.-);')
 local helpPaths = Util.split(help.path(), '(.-):')
 
diff --git a/sys/extensions/6.tl3.lua b/sys/extensions/6.tl3.lua
index 1ad1088..33006b4 100644
--- a/sys/extensions/6.tl3.lua
+++ b/sys/extensions/6.tl3.lua
@@ -879,7 +879,7 @@ function turtle.condense()
 				if slots[j].count > 0 and (slots[i].count == 0 or slots[i].key == slots[j].key) then
 					turtle.select(j)
 					if turtle.transferTo(i) then
-						local transferred = turtle.getItemCount(i) - slots[i].qty
+						local transferred = turtle.getItemCount(i) - slots[i].count
 						slots[j].count = slots[j].count - transferred
 						slots[i].count = slots[i].count + transferred
 						slots[i].key = slots[j].key