diff --git a/README.md b/README.md
index 0deec4f..ab934ae 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,12 @@ The project can be built by running a single script from the `misc/build` direct
 
 ### MacOS
 
+Library prerequisites: SDL2, spdlog, catch2
+
+Install with brew: `brew install sdl2 spdlog catch2`
+
+Install with macports: `sudo port install libsdl2 spdlog catch2` (for details: [#96](https://github.com/krupkat/xpano/pull/96#issuecomment-1575589249))
+
 Run the install script from the root of the repository:
 
 ```
diff --git a/misc/build/build-macos-12.sh b/misc/build/build-macos-12.sh
index 89d2e29..cdb6426 100755
--- a/misc/build/build-macos-12.sh
+++ b/misc/build/build-macos-12.sh
@@ -9,7 +9,7 @@ export EXIV2_VERSION='v0.28.0'
 export GENERATOR='Ninja Multi-Config'
 
 git submodule update --init
-brew install sdl2 spdlog catch2
+#brew install sdl2 spdlog catch2
 
 
 git clone https://github.com/opencv/opencv.git --depth 1 --branch $OPENCV_VERSION
diff --git a/misc/scripts/python/translate_github_action.py b/misc/scripts/python/translate_github_action.py
index 4990aed..1189bc2 100644
--- a/misc/scripts/python/translate_github_action.py
+++ b/misc/scripts/python/translate_github_action.py
@@ -16,8 +16,10 @@ def ConvertStep(step):
         if step.get("with", {}).get("submodules", False) == True:
             return "git submodule update --init"
     # comment out sudo actions
-    command = step.get("run", "")
-    return command.replace("sudo", "#sudo")
+    command = step.get("run", "") \
+        .replace("sudo", "#sudo") \
+        .replace("brew", "#brew")
+    return command
 
 
 def ShellExtension(system):