diff --git a/sys/apis/injector.lua b/sys/apis/injector.lua
index 83f19aa..95df150 100644
--- a/sys/apis/injector.lua
+++ b/sys/apis/injector.lua
@@ -1,4 +1,4 @@
-local DEFAULT_UPATH = 'https://raw.githubusercontent.com/kepler155c/opus/develop-1.8/sys/apis'
+local DEFAULT_UPATH = 'https://raw.githubusercontent.com/kepler155c/opus/' .. _ENV.BRANCH .. '/sys/apis'
 local PASTEBIN_URL  = 'http://pastebin.com/raw'
 local GIT_URL       = 'https://raw.githubusercontent.com'
 
diff --git a/sys/apps/Overview.lua b/sys/apps/Overview.lua
index 42b5481..b38b273 100644
--- a/sys/apps/Overview.lua
+++ b/sys/apps/Overview.lua
@@ -366,13 +366,15 @@ function page:eventHandler(event)
 
   elseif event.type == 'lua' then
     multishell.openTab({
-      path = 'sys/apps/Lua.lua',
+      path ='sys/apps/shell',
+      args = { 'sys/apps/Lua.lua' },
       focused = true,
     })
 
   elseif event.type == 'files' then
     multishell.openTab({
-      path = 'sys/apps/Files.lua',
+      path ='sys/apps/shell',
+      args = { 'sys/apps/Files.lua' },
       focused = true,
     })
 
diff --git a/sys/apps/netdaemon.lua b/sys/apps/netdaemon.lua
index 4195324..e0fd1d7 100644
--- a/sys/apps/netdaemon.lua
+++ b/sys/apps/netdaemon.lua
@@ -1,8 +1,6 @@
 _G.requireInjector()
 
-print('require event')
 local Event = require('event')
-print('require util')
 local Util  = require('util')
 
 local device     = _G.device
@@ -11,7 +9,6 @@ local network    = _G.network
 local os         = _G.os
 local printError = _G.printError
 
-print('check wireless_modem')
 if not device.wireless_modem then
 	return
 end
diff --git a/sys/boot/opus.boot b/sys/boot/opus.boot
index f24fe33..1adee42 100644
--- a/sys/boot/opus.boot
+++ b/sys/boot/opus.boot
@@ -24,15 +24,6 @@ term.redirect(kernelWindow)
 kernelWindow.parent = terminal
 local splashWindow
 
-local function showStatus(status, ...)
-  local str = string.format(status, ...)
-  print(str)
-  splashWindow.setCursorPos(1, h)
-  splashWindow.clearLine()
-  splashWindow.setCursorPos((w - #str) / 2, h)
-  splashWindow.write(str)
-end
-
 local function splash()
   splashWindow = window.create(terminal, 1, 1, w, h, false)
   splashWindow.setTextColor(colors.white)
@@ -57,6 +48,11 @@ local function splash()
       splashWindow.blit(string.rep(' ', #line), string.rep('a', #line), line)
     end
   end
+
+  local str = 'Loading Opus OS...'
+  print(str)
+  splashWindow.setCursorPos((w - #str) / 2, h)
+  splashWindow.write(str)
   splashWindow.setVisible(true)
   return splashWindow
 end
@@ -98,8 +94,6 @@ local args = { ... }
 
 splash()
 local s, m = pcall(function()
-  showStatus('Loading Opus OS...')
-
   -- Install require shim
   if fs.exists('sys/apis/injector.lua') then
     _G.requireInjector = run('sys/apis/injector.lua')
@@ -112,25 +106,28 @@ local s, m = pcall(function()
     fs.mount('', 'gitfs', GIT_REPO)
   end
 
-  --showStatus('Starting kernel')
+  -- runLevel 6 if passed a program to run
+  -- otherwise, runLevel 7 (multishell)
   run('sys/apps/shell', 'sys/kernel.lua', args[1] and 6 or 7)
 
-  if args[1] then
-    local s, m = _G.kernel.run({
-      title = 'startup',
-      path = 'sys/apps/shell',
-      args = args,
-      haltOnExit = true,
-    })
-    if s then
-      _G.kernel.raise(s.uid)
-    else
-      error(m)
+  kernel.hook('kernel_ready', function()
+    splashWindow.setVisible(false)
+    kernelWindow.setVisible(true)
+    if args[1] then
+      local s, m = _G.kernel.run({
+        title = 'startup',
+        path = 'sys/apps/shell',
+        args = args,
+        haltOnExit = true,
+      })
+      if s then
+        _G.kernel.raise(s.uid)
+      else
+        error(m)
+      end
     end
-  end
 
-  splashWindow.setVisible(false)
-  kernelWindow.setVisible(true)
+  end)
   _G.kernel.start()
 end)
 
diff --git a/sys/extensions/7.multishell.lua b/sys/extensions/7.multishell.lua
index 925ec26..94cd2e1 100644
--- a/sys/extensions/7.multishell.lua
+++ b/sys/extensions/7.multishell.lua
@@ -378,14 +378,16 @@ local function startup()
   end
 end
 
-overviewId = multishell.openTab({
-  path = 'sys/apps/Overview.lua',
-  isOverview = true,
-  focused = true,
-})
-kernel.find(overviewId).title = '+'
+kernel.hook('kernel_ready', function()
+  overviewId = multishell.openTab({
+    path = 'sys/apps/Overview.lua',
+    isOverview = true,
+    focused = true,
+  })
+  kernel.find(overviewId).title = '+'
 
-multishell.openTab({
-  fn = startup,
-  title = 'Autorun',
-})
+  multishell.openTab({
+    fn = startup,
+    title = 'Autorun',
+  })
+end)
diff --git a/sys/kernel.lua b/sys/kernel.lua
index 9908ebb..d53a8c7 100644
--- a/sys/kernel.lua
+++ b/sys/kernel.lua
@@ -230,22 +230,26 @@ function kernel.start()
   term.redirect(kernel.terminal)
 end
 
-local function loadExtensions(runLevel)
+local function init(runLevel)
+  runLevel = tonumber(runLevel) or error('Invalid run level')
+
   local dir = 'sys/extensions'
   local files = fs.list(dir)
   table.sort(files)
   for _,file in ipairs(files) do
     local level, name = file:match('(%d).(%S+).lua')
---print(name)
     if tonumber(level) <= runLevel then
       local s, m = shell.run(fs.combine(dir, file))
       if not s then
         error(m)
       end
-      --os.sleep(0)
     end
   end
+  os.queueEvent('kernel_ready')
 end
 
-local args = { ... }
-loadExtensions(args[1] and tonumber(args[1]) or 7)
+kernel.run({
+  fn = init,
+  title = 'init',
+  args = { ... },
+})
diff --git a/sys/network/snmp.lua b/sys/network/snmp.lua
index 1cefede..66f722e 100644
--- a/sys/network/snmp.lua
+++ b/sys/network/snmp.lua
@@ -3,11 +3,11 @@ local GPS    = require('gps')
 local Socket = require('socket')
 local Util   = require('util')
 
-local device     = _G.device
-local multishell = _ENV.multishell
-local network    = _G.network
-local os         = _G.os
-local turtle     = _G.turtle
+local device  = _G.device
+local kernel  = _G.kernel
+local network = _G.network
+local os      = _G.os
+local turtle  = _G.turtle
 
 -- move this into gps api
 local gpsRequested
@@ -33,7 +33,7 @@ local function snmpConnection(socket)
     elseif msg.type == 'script' then
       local fn, err = loadstring(msg.args, 'script')
       if fn then
-        multishell.openTab({
+        kernel.run({
           fn = fn,
           title = 'script',
         })