diff --git a/script/install.d/20-docker.sh b/script/install.d/20-docker.sh
index 9119aa3..adec750 100644
--- a/script/install.d/20-docker.sh
+++ b/script/install.d/20-docker.sh
@@ -1,14 +1,28 @@
-if [[ "$OSTYPE" == "linux-gnu"* && -z "$SKIP_DOCKER_CONFIG" ]]; then
-    docker --version
+#!/usr/bin/env bash
 
-    readonly docker_group="docker"
-    if ! grep -q "$docker_group" /etc/group; then
-        echo "Adding docker group"
-        sudo groupadd "$docker_group"
-    fi
+# -----------------------------------------------------------------------------
+# Description:
+#   (macOS) Install Docker.
+#   (Linux) Setup Docker.
+#
 
-    if ! groups "$USER" | grep -q "\b$docker_group\b"; then
-        echo "Adding user to docker group"
-        sudo usermod -aG docker "$USER"
+if [[ -z "$SKIP_DOCKER_CONFIG" ]]; then
+    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+        docker --version
+
+        readonly docker_group="docker"
+        if ! grep -q "$docker_group" /etc/group; then
+            echo "Adding docker group"
+            sudo groupadd "$docker_group"
+        fi
+
+        if ! groups "$USER" | grep -q "\b$docker_group\b"; then
+            echo "Adding user to docker group"
+            sudo usermod -aG docker "$USER"
+        fi
+    elif [[ "$OSTYPE" == "darwin"* ]]; then
+        if ! command -v docker &> /dev/null; then
+            brew install --cask docker
+        fi
     fi
 fi
diff --git a/script/install.d/50-redis.sh b/script/install.d/50-redis.sh
new file mode 100644
index 0000000..fda8772
--- /dev/null
+++ b/script/install.d/50-redis.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+# -----------------------------------------------------------------------------
+# Description:
+#   Install Redis.
+#
+
+if ! command -v redis-client &>/dev/null; then
+    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+        curl -fsSL https://packages.redis.io/gpg | sudo gpg --dearmor -o /usr/share/keyrings/redis-archive-keyring.gpg
+        echo "deb [signed-by=/usr/share/keyrings/redis-archive-keyring.gpg] https://packages.redis.io/deb $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/redis.list
+        sudo apt-get install -qq redis
+    elif [[ "$OSTYPE" == "darwin"* ]]; then
+        brew install redis
+    fi
+fi
\ No newline at end of file
diff --git a/script/test b/script/test
index d3f6499..d31b3e0 100755
--- a/script/test
+++ b/script/test
@@ -7,10 +7,17 @@ set -euo pipefail
 #
 
 IMAGE=${IMAGE:-"andrejusk/dotfiles"}
-tag=${TAG:-$(cat /proc/sys/kernel/random/uuid)}
+uuid=$(
+    uuidgen 2> /dev/null \
+    || cat /proc/sys/kernel/random/uuid 2> /dev/null \
+    || echo $RANDOM
+)
+tag=${TAG:-"$uuid"}
+
+echo "Building $IMAGE:$tag"
 
 docker build . \
-    --build-arg UUID=$tag \
+    --build-arg UUID=$uuid \
     --cache-from $IMAGE \
     --tag $IMAGE:$tag \
     --target test
diff --git a/tests/test_binaries.py b/tests/test_binaries.py
index 458904e..62bf7f9 100644
--- a/tests/test_binaries.py
+++ b/tests/test_binaries.py
@@ -50,6 +50,8 @@ binaries: List[Text] = [
     "terraform",
     "docker" if not os.environ.get("SKIP_DOCKER_CONFIG") else None,
     "neofetch",
+    "redis-cli",
+    "redis-server",
 
     # language: python
     "pyenv",