diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d287f66
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Dominik Wagner
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/TCMXML/TCMXMLWriter.h b/TCMXML/TCMXMLWriter.h
index f18b75c..a3dcefe 100644
--- a/TCMXML/TCMXMLWriter.h
+++ b/TCMXML/TCMXMLWriter.h
@@ -8,14 +8,13 @@
 
 #import <Foundation/Foundation.h>
 
-#define TCMWriterOptionNoOptions = 0UL;
-
-enum {
+typedef NS_OPTIONS(NSUInteger, TCMXMLWriterOptions)
+{
+    TCMWriterOptionNoOptions = 0UL,
 	TCMXMLWriterOptionPrettyPrinted = 1UL << 0,
 	TCMXMLWriterOptionOrderedAttributes = 1UL << 1, // mainly for unit testing to get reproducible results, but can also be helpful otherwise for stable results
 	TCMXMLWriterOptionPrettyBOOL = 1UL << 2 // prints BOOLEAN NSNumbers as boolYESValue and boolNOValue values - default is "yes" and "no" 
 };
-typedef NSUInteger TCMXMLWriterOptions;
 
 @interface TCMXMLWriter : NSObject {}
 
@@ -26,10 +25,10 @@ typedef NSUInteger TCMXMLWriterOptions;
 @property (nonatomic, strong) NSString *boolYESValue;
 @property (nonatomic, strong) NSString *boolNOValue;
 
-- (id)initWithOptions:(TCMXMLWriterOptions)anOptionField; // stores marshalled stuff in string
-- (id)initWithOptions:(TCMXMLWriterOptions)anOptionField fileURL:(NSURL *)aFileURL;
+- (instancetype)initWithOptions:(TCMXMLWriterOptions)anOptionField; // stores marshalled stuff in string
+- (instancetype)initWithOptions:(TCMXMLWriterOptions)anOptionField fileURL:(NSURL *)aFileURL;
 // stream must be open
-- (id)initWithOptions:(TCMXMLWriterOptions)anOptionField outputStream:(NSOutputStream *)anOutputStream;
+- (instancetype)initWithOptions:(TCMXMLWriterOptions)anOptionField outputStream:(NSOutputStream *)anOutputStream;
 
 // meta
 - (void)instructXMLStandalone; // <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
diff --git a/TCMXML/TCMXMLWriter.m b/TCMXML/TCMXMLWriter.m
index 4ce54f5..c8cf040 100644
--- a/TCMXML/TCMXMLWriter.m
+++ b/TCMXML/TCMXMLWriter.m
@@ -40,11 +40,11 @@ @implementation TCMXMLWriter
 
 @synthesize fileURL = _fileURL;
 
-- (id)init {
+- (instancetype)init {
     return [self initWithOptions:0];
 }
 
-- (id)initWithOptions:(TCMXMLWriterOptions)anOptionField {
+- (instancetype)initWithOptions:(TCMXMLWriterOptions)anOptionField {
 	if ((self = [super init])) {
 		_elementNameStackArray = [NSMutableArray new];
 		self.writerOptions = anOptionField;
@@ -57,14 +57,14 @@ - (id)initWithOptions:(TCMXMLWriterOptions)anOptionField {
 	}
 	return self;
 }
-- (id)initWithOptions:(TCMXMLWriterOptions)anOptionField fileURL:(NSURL *)aFileURL {
+- (instancetype)initWithOptions:(TCMXMLWriterOptions)anOptionField fileURL:(NSURL *)aFileURL {
 	if ((self = [self initWithOptions:anOptionField])) {
 		self.fileURL = aFileURL;
 	}
 	return self;
 }
 
-- (id)initWithOptions:(TCMXMLWriterOptions)anOptionField outputStream:(NSOutputStream *)anOutputStream {
+- (instancetype)initWithOptions:(TCMXMLWriterOptions)anOptionField outputStream:(NSOutputStream *)anOutputStream {
 	if ((self = [self initWithOptions:anOptionField])) {
 		self.outputStream = anOutputStream;
 	}
diff --git a/TCMXMLWriter.podspec b/TCMXMLWriter.podspec
new file mode 100644
index 0000000..7130a17
--- /dev/null
+++ b/TCMXMLWriter.podspec
@@ -0,0 +1,14 @@
+Pod::Spec.new do |spec|
+  spec.name         = 'TCMXMLWriter'
+  spec.version      = '1.0.0'
+  spec.license      = 'MIT'
+  spec.homepage     = 'https://github.com/monkeydom/TCMXMLWriter'
+  spec.author       = 'Dominik Wagner'
+  spec.summary      = 'Elegant cocoa XML marshalling with a small memory footprint'
+  spec.source       = { :git => 'https://github.com/monkeydom/TCMXMLWriter.git', :tag => spec.version.to_s }
+  spec.source_files = 'TCMXML/TCMXMLWriter.{h,m}'
+  spec.framework    = 'Foundation'
+  spec.requires_arc = true
+  spec.ios.deployment_target = "6.0"
+  spec.osx.deployment_target = "10.8"
+end