diff --git a/Brewfile b/Brewfile
deleted file mode 100644
index be9674970..000000000
--- a/Brewfile
+++ /dev/null
@@ -1,7 +0,0 @@
-cask "brew-cask/gcc-arm-embedded.rb"
-brew "protobuf"
-brew "gdb"
-brew "open-ocd"
-brew "clang-format"
-brew "dfu-util"
-brew "protobuf-c"
diff --git a/brew-cask/gcc-arm-embedded.rb b/brew-cask/gcc-arm-embedded.rb
deleted file mode 100644
index 1f9228991..000000000
--- a/brew-cask/gcc-arm-embedded.rb
+++ /dev/null
@@ -1,56 +0,0 @@
-cask "gcc-arm-embedded" do
-  # Exists as a cask because it is impractical as a formula:
-  # https://github.com/Homebrew/homebrew-core/pull/45780#issuecomment-569246452
-  version "10.3-2021.07,10.14.6"
-  sha256 "cae8b168ad16556ca204c0b441f9fb2c05be85362fe10e3b210be6b7177ef2d7"
-
-  url "https://developer.arm.com/-/media/Files/downloads/gnu-rm/#{version.before_comma}/gcc-arm-none-eabi-#{version.before_comma}-mac-#{version.after_comma}-sha1.pkg"
-  name "GCC ARM Embedded"
-  desc "Pre-built GNU bare-metal toolchain for 32-bit Arm processors"
-  homepage "https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm"
-
-  livecheck do
-    url "https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads"
-    strategy :page_match do |page|
-      match = page.match(/href=.*?gcc-arm-none-eabi-(\d+\.\d+-\d+\.\d+)-mac-(\d+\.\d+\.\d+)-sha1.pkg/i)
-      "#{match[1]},#{match[2]}"
-    end
-  end
-
-  pkg "gcc-arm-none-eabi-#{version.before_comma}-mac-#{version.after_comma}-sha1.pkg"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-addr2line"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-ar"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-as"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-c++"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-c++filt"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-cpp"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-elfedit"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-g++"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcc"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcc-10.3.1"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcc-ar"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcc-nm"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcc-ranlib"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcov"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcov-dump"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gcov-tool"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gdb"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gdb-add-index"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gdb-add-index-py"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gdb-py"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-gprof"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-ld"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-ld.bfd"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-lto-dump"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-nm"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-objcopy"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-objdump"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-ranlib"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-readelf"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-size"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-strings"
-  binary "#{appdir}/ARM/bin/arm-none-eabi-strip"
-
-  uninstall pkgutil: "gcc.arm-none-eabi-#{version[/^(\d{2})/]}",
-            delete:  "/Applications/ARM"
-end