add install script

install.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+set -euxo pipefail
+
+# Function to check if kitty is installed
+is_kitty_installed() {
+    if command -v kitty &> /dev/null; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+# Function to install kitty on macOS
+install_kitty_mac() {
+    echo ">>>>> Will install kitty"
+    brew tap ImSingee/kitty
+    brew install kitty
+}
+
+# Function to install kitty on Linux
+install_kitty_linux() {
+    echo ">>>>> Will install kitty"
+    ARCH=$(uname -m)
+    case $ARCH in
+        x86_64)
+            ARCH="amd64"
+            ;;
+        aarch64)
+            ARCH="arm64"
+            ;;
+        *)
+            echo "Unsupported architecture: $ARCH"
+            exit 1
+            ;;
+    esac
+    KITTY_URL="https://go.singee.site/kitty/latest-linux-$ARCH.tar.gz"
+    curl -o /tmp/kitty.tar.gz $KITTY_URL
+    tar -xzf /tmp/kitty.tar.gz -C /tmp
+    mv /tmp/kitty /usr/local/bin/kitty
+    chmod +x /usr/local/bin/kitty
+}
+
+# Function to run kitty install command
+run_kitty_install() {
+    kitty install --from-direnv
+}
+
+# Detect the operating system
+OS=$(uname)
+
+if is_kitty_installed; then
+    echo "Kitty is already installed."
+else
+    if [ "$OS" = "Darwin" ]; then
+        # macOS system detected
+        install_kitty_mac
+    elif [ "$OS" = "Linux" ]; then
+        # Linux system detected
+        install_kitty_linux
+    else
+        echo "Unsupported operating system: $OS"
+        exit 1
+    fi
+fi
+
+# Run the kitty install command
+if [ -d ".git" ]; then
+  run_kitty_install
+else