diff --git a/README.md b/README.md
index 00bcb6e..b7f4cea 100644
--- a/README.md
+++ b/README.md
@@ -1 +1 @@
-# test
\ No newline at end of file
+# Opus OS for computercraft
diff --git a/apps/scripts/follow b/apps/scripts/follow
index 7fa08d8..b7ba73c 100644
--- a/apps/scripts/follow
+++ b/apps/scripts/follow
@@ -1,5 +1,6 @@
 local function follow(id)
 
+  require = requireInjector(getfenv(1))
   local GPS = require('gps')
   local Socket = require('socket')
   local Point = require('point')
diff --git a/apps/scripts/moveTo b/apps/scripts/moveTo
index df37201..0ca0caf 100644
--- a/apps/scripts/moveTo
+++ b/apps/scripts/moveTo
@@ -1,4 +1,5 @@
 turtle.run(function()
+  require = requireInjector(getfenv(1))
   local GPS = require('gps')
   local Socket = require('socket')
 
diff --git a/apps/scripts/summon b/apps/scripts/summon
index 21b0818..0c00e07 100644
--- a/apps/scripts/summon
+++ b/apps/scripts/summon
@@ -1,5 +1,6 @@
 local function summon(id)
 
+  require = requireInjector(getfenv(1))
   local GPS = require('gps')
   local Socket = require('socket')
   local Point = require('point')
diff --git a/sys/apis/git.lua b/sys/apis/git.lua
index bfe0929..ccaaf5f 100644
--- a/sys/apis/git.lua
+++ b/sys/apis/git.lua
@@ -1,4 +1,5 @@
 local json = require('json')
+local Util = require('util')
 
 local TREE_URL = 'https://api.github.com/repos/%s/%s/git/trees/%s?recursive=1'
 local FILE_URL = 'https://raw.github.com/%s/%s/%s/%s'
diff --git a/sys/apis/ui.lua b/sys/apis/ui.lua
index 58c5e1c..7b690fc 100644
--- a/sys/apis/ui.lua
+++ b/sys/apis/ui.lua
@@ -1590,9 +1590,11 @@ end
 function UI.ViewportWindow:setScrollPosition(offset)
   local oldOffset = self.offy
   self.offy = math.max(offset, 0)
-  local max = self.height
-  for _, child in ipairs(self.children) do
-    max = math.max(child.y + child.height - 1, max)
+  local max = self.ymax or self.height
+  if self.children then
+    for _, child in ipairs(self.children) do
+      max = math.max(child.y + child.height - 1, max)
+    end
   end
   self.offy = math.min(self.offy, max - self.height)
   if self.offy ~= oldOffset then