diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 12e88858..acb70368 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -1,29 +1,29 @@
 name: Rust
 
-on:
-  [push, pull_request]
+on: [push, pull_request]
 
 env:
   CARGO_TERM_COLOR: always
 
 jobs:
   build:
-
     runs-on: macos-latest
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Install circom
-      run: |
-        git clone https://github.com/iden3/circom.git
-        cd circom
-        cargo build --release
-        cargo install --path circom
-    - name: Build
-      run: ./scripts/build_ios.sh simulator debug
-    - name: Run core tests
-      run: cd mopro-core/ && cargo test --verbose
-    - name: Run ffi tests
-      run: cd mopro-ffi/ && cargo test --verbose
-    - name: Run bindings tests
-      run: cd mopro-ffi/ && cargo test --test test_generated_bindings
\ No newline at end of file
+      - uses: actions/checkout@v3
+      - name: Install circom
+        run: |
+          git clone https://github.com/iden3/circom.git
+          cd circom
+          cargo build --release
+          cargo install --path circom
+      - name: Prepare
+        run: ./scripts/prepare.sh
+      - name: Build
+        run: ./scripts/build_ios.sh simulator debug
+      - name: Run core tests
+        run: cd mopro-core/ && cargo test --verbose
+      - name: Run ffi tests
+        run: cd mopro-ffi/ && cargo test --verbose
+      - name: Run bindings tests
+        run: cd mopro-ffi/ && cargo test --test test_generated_bindings
diff --git a/README.md b/README.md
index 1d772625..ba2ee02e 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,12 @@ Zooming in a bit:
 
 ![mopro architecture](images/mopro_architecture2.png)
 
+## Prepare
+
+- Install [circom](https://docs.circom.io/)
+- Install [cocoapods](https://cocoapods.org/)
+- Run `./scripts/prepare.sh` to check all prerequisites are set.
+
 ## Build Bindings
 
 To build bindings for iOS simulator debug mode, run
diff --git a/mopro-core/examples/circom/compile.sh b/mopro-core/examples/circom/compile.sh
index 9ed1f2ce..68fe351b 100755
--- a/mopro-core/examples/circom/compile.sh
+++ b/mopro-core/examples/circom/compile.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 
-circom ./examples/circom/multiplier2.circom --r1cs --wasm --sym --output ./examples/circom/target
\ No newline at end of file
+circom ./examples/circom/multiplier2.circom --r1cs --wasm --sym --output ./examples/circom/target
diff --git a/mopro-core/examples/circom/keccak256/compile.sh b/mopro-core/examples/circom/keccak256/compile.sh
index f7f18690..fd9f0cc5 100755
--- a/mopro-core/examples/circom/keccak256/compile.sh
+++ b/mopro-core/examples/circom/keccak256/compile.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
-mkdir target
-circom ./keccak256_256_test.circom --r1cs --wasm --sym --output ./target
\ No newline at end of file
+mkdir -p target
+circom ./keccak256_256_test.circom --r1cs --wasm --sym --output ./target
diff --git a/mopro-ios/README.md b/mopro-ios/README.md
index ad96f3aa..b50fed0b 100644
--- a/mopro-ios/README.md
+++ b/mopro-ios/README.md
@@ -1,12 +1,27 @@
 # mopro-ios
 
+## Prepare
+
+<!--TODO: If the monorepo is seperated, update this-->
+
+Check the [Prepare](../README.md#prepare) and [Build Bindings](../README.md#build-bindings) steps in the root directory.
+
+## Execute
+
+Open the `MoproKit/Example/MoproKit.xcworkspace` in Xcode.
+Use `command`+`R` to execute a simulator.
+
 ## Linker problems?
 
-- Open Xcworkspace
-- Pod > MoproKit target
-- Build Settings
-	- Library Search Paths
-	- Other Linker Flags
-	- Header search paths
-- (Build Phases > Link Binary With Libraries `lmopro_ffi` (no lib no .a))
-- Gitignore
+Add the following settings after
+
+1. `MoproKit/Example/Pods/Target Support Files/MoproKit/MoproKit.debug.xcconfig`
+2. `MoproKit/Example/Pods/Target Support Files/MoproKit/MoproKit.release.xcconfig`
+
+files
+
+```
+LIBRARY_SEARCH_PATHS=${SRCROOT}/../../Libs
+OTHER_LDFLAGS=-lmopro_ffi
+USER_HEADER_SEARCH_PATHS=${SRCROOT}/../../include
+```
diff --git a/scripts/build_ios.sh b/scripts/build_ios.sh
index 59e7fc75..48b4f63e 100755
--- a/scripts/build_ios.sh
+++ b/scripts/build_ios.sh
@@ -2,6 +2,10 @@
 
 PROJECT_DIR=$(pwd)
 
+# Color definitions
+DEFAULT='\033[0m'
+RED='\033[0;31m'
+
 # Check for the device type argument
 if [[ "$1" == "simulator" ]]; then
     DEVICE_TYPE="simulator"
@@ -27,17 +31,11 @@ else
 fi
 
 # build circom circuits in mopro-core
-
-cd ${PROJECT_DIR}/mopro-core/examples/circom/keccak256
-npm install
-./compile.sh
 cd ${PROJECT_DIR}/mopro-core
 cargo build --release
 
 # build ffi in mopro-ffi
 cd ${PROJECT_DIR}/mopro-ffi
-rustup target add x86_64-apple-ios aarch64-apple-ios aarch64-apple-ios-sim
-cargo install --bin uniffi-bindgen --path .
 make
 cargo build --release
 
@@ -47,16 +45,15 @@ pod install
 
 # update bindings
 cd ${PROJECT_DIR}
-./scripts/update_bindings.sh $1 $2
+./scripts/update_bindings.sh ${DEVICE_TYPE} ${BUILD_MODE}
 
 # update xcconfig
-
 MODES="debug release"
 XCCONFIG_PATH=mopro-ios/MoproKit/Example/Pods/Target\ Support\ Files/MoproKit
 CONFIGS="
-    LIBRARY_SEARCH_PATHS=\${SRCROOT}/../../Libs
-    OTHER_LDFLAGS=-lmopro_ffi
-    USER_HEADER_SEARCH_PATHS=\${SRCROOT}/../../include
+LIBRARY_SEARCH_PATHS=\${SRCROOT}/../../Libs
+OTHER_LDFLAGS=-lmopro_ffi
+USER_HEADER_SEARCH_PATHS=\${SRCROOT}/../../include
 "
 for mode in ${MODES}
 do
@@ -67,4 +64,4 @@ do
             echo "${config}" >> "${FILE_NAME}"
         fi
     done
-done
\ No newline at end of file
+done
diff --git a/scripts/prepare.sh b/scripts/prepare.sh
new file mode 100755
index 00000000..fc7c4c2c
--- /dev/null
+++ b/scripts/prepare.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+PROJECT_DIR=$(pwd)
+
+# build circom circuits in mopro-core
+cd ${PROJECT_DIR}/mopro-core/examples/circom/keccak256
+npm install
+./compile.sh
+
+# build ffi in mopro-ffi
+cd ${PROJECT_DIR}/mopro-ffi
+rustup target add x86_64-apple-ios aarch64-apple-ios aarch64-apple-ios-sim
+cargo install --bin uniffi-bindgen --path .