diff --git a/inspectrum.rb b/inspectrum.rb
new file mode 100644
index 0000000..a902f49
--- /dev/null
+++ b/inspectrum.rb
@@ -0,0 +1,26 @@
+class Inspectrum < Formula
+  desc "Offline radio signal analyser"
+  homepage "https://github.com/miek/inspectrum"
+  head "https://github.com/miek/inspectrum.git"
+
+  depends_on "qt5"
+  depends_on "fftw"
+  depends_on "cmake" => :build
+  depends_on "pkg-config"
+  depends_on "dholm/sdr/liquid-dsp" # TODO: how to specify requires --HEAD? or get https://gist.github.com/rxseger/2c0aea05f47e162725f5ec703461d32a
+
+
+  def install
+    # TODO: need to set to use qt5 not qt4, otherwise fails:
+    # /tmp/inspectrum-20160704–46579-gxda2b/moc_cursor.cpp:9:10: fatal error: ‘../../private/tmp/inspectrum-20160704–46579-gxda2b/cursor.h’ file not found
+    # how to do this within Homebrew? works fine with manual compilation, but not in the Homebrew formula
+    #qt5 = `brew --prefix qt5`.chomp # TODO: better way to do this? need QT5 not QT4
+    qt5 = "/usr/local/opt/qt5"
+    ENV["CMAKE_PREFIX_PATH"] = "#{qt5}/lib/cmake"
+    puts "prefix-path=",ENV["CMAKE_PREFIX_PATH"]
+    ENV["CMAKE_SYSTEM_PREFIX_PATH"] = ENV["CMAKE_PREFIX_PATH"]
+
+    system "cmake", ".", *std_cmake_args
+    system "make", "install"
+  end
+end