diff --git a/src/sdk/build b/src/sdk/build
new file mode 100644
index 0000000..fcb838e
--- /dev/null
+++ b/src/sdk/build
@@ -0,0 +1,83 @@
+local args = {...}
+if not sPhone then
+	print("build requires sPhone")
+end
+if #args < 2 then
+	print("Usage: build <App Folder> <Output>")
+	return
+end
+
+local dir = args[1]
+local output = args[2]
+local final = {}
+local builderVersion = 1
+
+if not fs.exists(dir) or not fs.isDir(dir) then
+	print("Input must be a folder")
+	return
+end
+
+
+local f = fs.open(dir.."/config","r")
+local config = textutils.unserialize(f.readAll())
+f.close()
+if not config then
+	print("Config file is corrupted")
+	return
+end
+
+-- COMPRESS
+
+local filesystem = {}
+ 
+local function readFile(path)
+        local file = fs.open(path,"r")
+        local variable = file.readAll()
+        file.close()
+        return variable
+end
+ 
+local function explore(dir)
+        local buffer = {}
+        local sBuffer = fs.list(dir)
+        for i,v in pairs(sBuffer) do
+                sleep(0.05)
+                        if fs.isDir(dir.."/"..v) then
+                                if v ~= ".git" then
+                                        buffer[v] = explore(dir.."/"..v)
+                                end
+                        else
+                                buffer[v] = readFile(dir.."/"..v)
+                        end
+        end
+        return buffer
+end
+
+
+-- COMPRESS
+
+local result = {}
+
+
+print("Name:",config.name)
+print("Author:",config.author)
+print("Version:",config.version)
+print("ID:",config.id)
+
+if string.getExtension(output) ~= "spk" then
+	printError("TIP: Use .spk extension")
+end
+
+print("Building...")
+
+local filesystem = explore(args[1].."/main")
+result["files"] = textutils.serialize(filesystem)
+result["config"] = textutils.serialize(config)
+
+
+local newResult = textutils.serialize(result)
+local info = "--\n-- sPhone Application Package\n-- Built with SPK builder "..builderVersion.."\n--"
+local f = fs.open(output,"w")
+f.write(info.."\n"..newResult)
+f.close()
+