diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3b5ad58
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,23 @@
+PREFIX ?= /usr/local
+BINDIR ?= $(PREFIX)/bin
+
+CFLAGS ?= -O2 -Wall -Wextra
+CFLAGS += $(shell pkg-config --cflags gtk+-3.0 webkit2gtk-4.1)
+LIBS = $(shell pkg-config --libs gtk+-3.0 webkit2gtk-4.1)
+
+.PHONY: all clean install uninstall
+
+all: noiz
+
+noiz: noiz.c
+	$(CC) $(CFLAGS) -o $@ $< $(LIBS)
+
+clean:
+	rm -f noiz
+
+install: noiz
+	install -d $(DESTDIR)$(BINDIR)
+	install -m 755 noiz $(DESTDIR)$(BINDIR)/noiz
+
+uninstall:
+	rm -f $(DESTDIR)$(BINDIR)/noiz
diff --git a/noiz.py b/noiz.py
index 8f78faa..b4fe0a8 100755
--- a/noiz.py
+++ b/noiz.py
@@ -1,8 +1,26 @@
 #!/usr/bin/env python3
 import webview
-webview.create_window(
-"noiz://",
-"./index.html"
-)
-webview.start()
+def inject_zoom_shortcuts(window):
+    window.evaluate_js(
+        """
+        document.addEventListener('keydown', function(e) {
+            if (!e.ctrlKey) return;
+            var key = e.key;
+            if (key === '=' || key === '+' || key === '-') {
+                e.preventDefault();
+                var cur = parseFloat(document.body.style.zoom) || 1;
+                if (key === '-') {
+                    document.body.style.zoom = Math.max(0.25, +(cur - 0.1).toFixed(2));
+                } else {
+                    document.body.style.zoom = Math.min(3, +(cur + 0.1).toFixed(2));
+                }
+            } else if (key === '0') {
+                e.preventDefault();
+                document.body.style.zoom = 1;
+            }
+        });
+        """
+    )
+window = webview.create_window("noiz://", "https://bsd.pm/noiz/", zoomable=True)
+webview.start(inject_zoom_shortcuts, window)