diff --git a/.babelrc b/.babelrc
new file mode 100644
index 00000000..8df53fe4
--- /dev/null
+++ b/.babelrc
@@ -0,0 +1,3 @@
+{
+"presets": ["react-native"]
+}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..62f5fc49
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,47 @@
+# OSX
+#
+.DS_Store
+
+# Xcode
+!**/*.xcodeproj
+!**/*.pbxproj
+!**/*.xcworkspacedata
+!**/*.xcsettings
+!**/*.xcscheme
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata
+*.xccheckout
+*.moved-aside
+DerivedData
+*.hmap
+*.ipa
+*.xcuserstate
+project.xcworkspace
+
+# Android/IJ
+#
+/build/
+.idea
+.gradle
+local.properties
+
+# node.js
+#
+node_modules/
+npm-debug.log
+yarn.lock
+yarn-error.log
+
+# others
+#
+.buckconfig
+.flowconfig
+.gitattributes
+.watchmanconfig
diff --git a/.npmignore b/.npmignore
index 65d7ff64..caa1e078 100644
--- a/.npmignore
+++ b/.npmignore
@@ -3,8 +3,11 @@
 .DS_Store
 
 # Xcode
-#
-build/
+!**/*.xcodeproj
+!**/*.pbxproj
+!**/*.xcworkspacedata
+!**/*.xcsettings
+!**/*.xcscheme
 *.pbxuser
 !default.pbxuser
 *.mode1v3
@@ -24,6 +27,7 @@ project.xcworkspace
 
 # Android/IJ
 #
+/build/
 .idea
 .gradle
 local.properties
@@ -34,11 +38,9 @@ node_modules/
 npm-debug.log
 yarn.lock
 yarn-error.log
-app.json
 
 # others
 #
-.babelrc
 .buckconfig
 .flowconfig
 .gitattributes
diff --git a/example/.babelrc b/example/.babelrc
new file mode 100644
index 00000000..8df53fe4
--- /dev/null
+++ b/example/.babelrc
@@ -0,0 +1,3 @@
+{
+"presets": ["react-native"]
+}
\ No newline at end of file