diff --git a/README.md b/README.md
index 9a3b592..224f72d 100644
--- a/README.md
+++ b/README.md
@@ -5,11 +5,30 @@ with [Buildozer](https://github.com/kivy/buildozer). This action uses official
 Buildozer [Docker image](https://github.com/kivy/buildozer/blob/master/Dockerfile),
 but adds some features and patches to use in GitHub Actions.
 
+## Inputs
+
+### `command`
+
+**Required** Command to start Buildozer.
+
+- _Default:_ `buildozer android debug` _(iOS and OSX is not supported because Docker cannot run on MacOS)_.
+- For more commands use `;` as delimiter: `python3 setup.py build_ext --inplace; buildozer android debug`.
+
+### `workdir`
+
+**Required** Working directory where buildozer.spec is located.
+
+- _Default:_ `.` (top directory).
+- Set to `src` if buildozer.spec is in `src` directory.
+
 ## Example usage
 
 ```yaml
 - name: Build with Buildozer
   uses: ArtemSBulgakov/buildozer-action@v1
+  with:
+    command: buildozer android debug
+    workir: src
 ```
 
 ## License
diff --git a/action.yml b/action.yml
index 824d01b..4fac757 100644
--- a/action.yml
+++ b/action.yml
@@ -5,6 +5,16 @@ branding:
   icon: package
   color: yellow
 
+inputs:
+  command:
+    description: Command to start Buildozer. Set to `buildozer ios debug` for iOS
+    required: true
+    default: buildozer android debug
+  workdir:
+    description: Working directory where buildozer.spec is located. Set to `src` if buildozer.spec is in `src` directory
+    required: true
+    default: .
+
 runs:
   using: docker
   image: Dockerfile
diff --git a/entrypoint.sh b/entrypoint.sh
index 6c0b888..9dadf1c 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -12,8 +12,17 @@ export APP_ANDROID_ACCEPT_SDK_LICENSE=1
 export BUILDOZER_BUILD_DIR=./.buildozer
 export BUILDOZER_BIN=./bin
 
-# Run build
-sh -c "buildozer android debug"
+# Change directory to workir
+if ! cd "$INPUT_WORKDIR"; then
+  echo ::error::Specified workdir is not exists.
+  exit 1
+fi
+
+# Run command
+if ! sh -c "$INPUT_COMMAND"; then
+  echo ::error::Error while executing command \""$INPUT_COMMAND"\"
+  exit 1
+fi
 
 # Give access to root
 sudo chown -R root "$GITHUB_WORKSPACE"