diff --git a/.gitignore b/.gitignore
index d66f26a..f70d402 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,8 @@
 .DS_Store
 arm64
 x86_64
+build
 Caffeine
 Caffeine.app
+ids
+src/tags
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..4068edc
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,45 @@
+APPLE_ID := $(shell cat ./ids/APPLE_ID)
+TEAM_ID := $(shell cat ./ids/TEAM_ID)
+APP_SPECIFIC_PASSWORD := $(shell cat ./ids/APP_SPECIFIC_PASSWORD)
+
+exe = Caffeine
+
+$(exe).app:
+	$(MAKE) -C src FLAGS=-O CFLAGS=-O3 default
+
+container:
+	ditto -c -k --keepParent ./src/$(exe).app ./build/$(exe).zip
+
+notarize:
+	xcrun notarytool submit ./build/$(exe).zip \
+		--apple-id "$(APPLE_ID)" --team-id "$(TEAM_ID)" \
+		--password "$(APP_SPECIFIC_PASSWORD)" --wait
+
+staple:
+	cd build && \
+	ditto -xk $(exe).zip . && \
+	rm $(exe).zip && \
+	xcrun stapler staple $(exe).app
+
+zip:
+	cd build && \
+	ditto -c -k --keepParent $(exe).app $(exe).zip
+
+dmg:
+	cp background.png build && cd build && \
+	create-dmg --volname "$(exe) Installer" --window-size 600 400 \
+		--background "background.png" --icon "$(exe).app" 200 170 \
+		--app-drop-link 400 170 --icon-size 100 "$(exe).dmg" "$(exe)"
+	rm build/background.png
+
+all: $(exe).app container notarize staple zip dmg
+
+status:
+	@echo 'xcrun notarytool log "" --apple-id "$(APPLE_ID)" --team-id "$(TEAM_ID)" --password "$(APP_SPECIFIC_PASSWORD)" developer_log.json'
+
+clean:
+	rm -rf build
+
+clean-all: clean
+	mkdir build
+	@$(MAKE) -C src clean-all
diff --git a/src/AboutViewController.m b/src/AboutViewController.m
index 19d8278..94d8e79 100644
--- a/src/AboutViewController.m
+++ b/src/AboutViewController.m
@@ -56,7 +56,7 @@
     [_versionLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
 
     _copyrightLabel = [[NSTextField labelWithString:
-        @"Copyright © 2025\nGarikMI. All rights reserved."] retain];
+        @"Copyright © 2026 Rednera.\nAll rights reserved."] retain];
     [_copyrightLabel setFont:_fontSubheadline];
     [_copyrightLabel setTextColor:[NSColor systemGrayColor]];
     [_copyrightLabel setAlignment:NSTextAlignmentCenter];
diff --git a/src/Info.plist b/src/Info.plist
index 0731171..65fdbcb 100644
--- a/src/Info.plist
+++ b/src/Info.plist
@@ -11,7 +11,7 @@
 	<key>CFBundleIconName</key>
 	<string>AppIcon</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.garikme.Caffeine</string>
+	<string>com.rednera.Caffeine</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
@@ -19,13 +19,13 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.2</string>
+	<string>0.1.0</string>
 	<key>CFBundleSupportedPlatforms</key>
 	<array>
 		<string>MacOSX</string>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>0.2</string>
+	<string>0.1.0</string>
 	<key>DTPlatformName</key>
 	<string>macosx</string>
 	<key>DTPlatformVersion</key>
@@ -40,5 +40,7 @@
 	<true/>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
+    <key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2026 Rednera. All rights reserved.</string>
 </dict>
 </plist>
diff --git a/src/Makefile b/src/Makefile
index 80f6012..09873a1 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,3 +1,6 @@
+APPLE_DEVELOPMENT := $(shell cat ../ids/APPLE_DEVELOPMENT)
+APPLE_DEVELOPER_ID_APPLICATION := $(shell cat ../ids/APPLE_DEVELOPER_ID_APPLICATION)
+
 CC = clang
 FLAGS = -fno-objc-arc -Wall -Wextra -Wunguarded-availability \
 		-Werror=unguarded-availability -glldb -fno-caret-diagnostics \
@@ -27,7 +30,11 @@ $(EXEC).app: $(EXEC)
 	mkdir -p $@/Contents/Resources/ && \
 	cp Info.plist $@/Contents/ && \
 	cp resources/AppIcon.icns $@/Contents/Resources/ && \
-	cp $(EXEC) $@/Contents/MacOS/
+	cp $(EXEC) $@/Contents/MacOS/ && \
+	$(if $(DEBUG), codesign --entitlements $(EXEC).entitlements \
+		-s ${APPLE_DEVELOPMENT} -f --timestamp -o runtime $(EXEC).app, \
+		    codesign -s ${APPLE_DEVELOPER_ID_APPLICATION} -f --timestamp \
+				-o runtime $(EXEC).app)
 
 # Requires universal-ctags for Objective-C.
 ctags:
@@ -35,4 +42,3 @@ ctags:
 
 clean:
 	rm -rf $(EXEC) $(EXEC).dSYM $(EXEC).app
-