diff --git a/README.md b/README.md
index 5d23d52..e409a6f 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
-# Bun React template repository
+# React SPA starter template
 
-This is a template repository for `React` and `TypeScript` built with Bun. It uses `bun` instead of Node.js and `biome` instead of `prettier / eslint` for better performance.
+This is a starter template for a React single-page application built with `TypeScript` and Bun. It uses `bun` instead of Node.js and `biome` instead of `prettier / eslint` for better performance.
 
 ## Start a new project from this template
 
diff --git a/sbx-kits/asdf/files/home/.local/bin/asdf-utils.sh b/sbx-kits/asdf/files/home/.local/bin/asdf-utils.sh
deleted file mode 100644
index e91bf43..0000000
--- a/sbx-kits/asdf/files/home/.local/bin/asdf-utils.sh
+++ /dev/null
@@ -1,130 +0,0 @@
-#!/usr/bin/env bash
-
-ASDF_RELEASE_API_URL="${ASDF_RELEASE_API_URL:-https://api.github.com/repos/asdf-vm/asdf/releases/latest}"
-ASDF_INSTALL_DIR="${ASDF_INSTALL_DIR:-$HOME/.local/bin}"
-ASDF_BIN="$ASDF_INSTALL_DIR/asdf"
-
-ASDF_RELEASE_JSON=""
-ASDF_TARGET_VERSION=""
-ASDF_OS=""
-ASDF_ARCH=""
-ASDF_ASSET_URL=""
-ASDF_ASSET_MD5_URL=""
-
-install_latest() {
-  mkdir -p "$ASDF_INSTALL_DIR"
-
-  local tmp_dir
-  tmp_dir="$(mktemp -d)"
-  trap 'rm -rf "$tmp_dir"' RETURN
-
-  local archive="$tmp_dir/asdf.tar.gz"
-  local archive_md5="$tmp_dir/asdf.tar.gz.md5"
-  local expected_md5
-  local actual_md5
-
-  log_info "Installing asdf $ASDF_TARGET_VERSION for $ASDF_OS/$ASDF_ARCH."
-  log_info "Downloading: $ASDF_ASSET_URL"
-
-  curl -fsSL -o "$archive" "$ASDF_ASSET_URL"
-  curl -fsSL -o "$archive_md5" "$ASDF_ASSET_MD5_URL"
-
-  expected_md5="$(tr -d '[:space:]' < "$archive_md5")"
-
-  if command -v md5sum >/dev/null 2>&1; then
-    actual_md5="$(md5sum "$archive" | awk '{print $1}')"
-  else
-    actual_md5="$(md5 -q "$archive")"
-  fi
-
-  if [[ "$expected_md5" != "$actual_md5" ]]; then
-    fail "MD5 checksum mismatch for downloaded archive."
-  fi
-
-  log_info "MD5 checksum verified."
-
-  tar -xzf "$archive" -C "$tmp_dir"
-
-  if [[ ! -f "$tmp_dir/asdf" ]]; then
-    fail "Archive did not contain expected asdf binary."
-  fi
-
-  install -m 755 "$tmp_dir/asdf" "$ASDF_BIN"
-  log_info "Installed asdf to $ASDF_BIN."
-}
-
-load_latest_release() {
-  ASDF_OS="$(normalize_os)"
-  ASDF_ARCH="$(normalize_arch)"
-  ASDF_RELEASE_JSON="$(curl -fsSL "$ASDF_RELEASE_API_URL")"
-
-  ASDF_TARGET_VERSION="$(jq -r '.target_name // .tag_name // empty' <<<"$ASDF_RELEASE_JSON")"
-
-  if [[ -z "$ASDF_TARGET_VERSION" || "$ASDF_TARGET_VERSION" == "null" ]]; then
-    fail "Could not determine latest asdf version from release JSON."
-  fi
-
-  ASDF_ASSET_URL="$(jq -r \
-    --arg os "$ASDF_OS" \
-    --arg arch "$ASDF_ARCH" \
-    '.assets[]
-     | select(.name | test($os))
-     | select(.name | test($arch))
-     | select(.name | endswith(".tar.gz"))
-     | .browser_download_url' <<<"$ASDF_RELEASE_JSON" | head -n 1)"
-
-  if [[ -z "$ASDF_ASSET_URL" || "$ASDF_ASSET_URL" == "null" ]]; then
-    fail "Could not find release asset for OS=$ASDF_OS ARCH=$ASDF_ARCH."
-  fi
-
-  ASDF_ASSET_MD5_URL="${ASDF_ASSET_URL}.md5"
-}
-
-installed_version() {
-  if [[ -x "$ASDF_BIN" ]]; then
-    "$ASDF_BIN" version 2>/dev/null | awk '{print $1}' || true
-  fi
-}
-
-normalize_os() {
-  case "$(uname -s)" in
-    Linux) printf '%s\n' "linux" ;;
-    Darwin) printf '%s\n' "darwin" ;;
-    *) fail "Unsupported operating system: $(uname -s)" ;;
-  esac
-}
-
-normalize_arch() {
-  case "$(uname -m)" in
-    x86_64|amd64) printf '%s\n' "amd64" ;;
-    arm64|aarch64) printf '%s\n' "arm64" ;;
-    *) fail "Unsupported architecture: $(uname -m)" ;;
-  esac
-}
-
-require_dependencies() {
-  require_cmd curl
-  require_cmd jq
-  require_cmd tar
-  require_cmd install
-  require_cmd md5sum
-}
-
-require_cmd() {
-  if ! command -v "$1" >/dev/null 2>&1; then
-    fail "Missing required command: $1"
-  fi
-}
-
-fail() {
-  log_error "$*"
-  exit 1
-}
-
-log_info() {
-  printf '[info] %s\n' "$*" >&2
-}
-
-log_error() {
-  printf '[error] %s\n' "$*" >&2
-}
diff --git a/sbx-kits/asdf/files/home/.local/bin/install-asdf b/sbx-kits/asdf/files/home/.local/bin/install-asdf
deleted file mode 100755
index c9bb39b..0000000
--- a/sbx-kits/asdf/files/home/.local/bin/install-asdf
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-# shellcheck source=asdf-utils.sh
-source "$SCRIPT_DIR/asdf-utils.sh"
-
-require_dependencies
-load_latest_release
-install_latest
diff --git a/sbx-kits/asdf/files/home/.local/bin/sync-asdf-tools b/sbx-kits/asdf/files/home/.local/bin/sync-asdf-tools
deleted file mode 100755
index 1984598..0000000
--- a/sbx-kits/asdf/files/home/.local/bin/sync-asdf-tools
+++ /dev/null
@@ -1,43 +0,0 @@
-# sync-asdf-tool-versions
-#!/usr/bin/env bash
-set -euo pipefail
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-# shellcheck source=asdf-utils.sh
-source "$SCRIPT_DIR/asdf-utils.sh"
-
-TOOL_VERSIONS_FILE="$WORKSPACE_DIR/.tool-versions"
-
-sync_tool_versions() {
-  local plugin
-  local version
-
-  [[ -f "$TOOL_VERSIONS_FILE" ]] || fail "Missing file: $TOOL_VERSIONS_FILE"
-
-  while read -r plugin version _; do
-    [[ -n "${plugin:-}" ]] || continue
-    [[ "$plugin" == \#* ]] && continue
-    [[ -n "${version:-}" ]] || fail "Missing version for plugin: $plugin"
-
-    install_tool "$plugin" "$version"
-  done < "$TOOL_VERSIONS_FILE"
-}
-
-install_tool() {
-  local plugin="$1"
-  local version="$2"
-
-  if asdf plugin list | grep -Fxq "$plugin"; then
-    log_info "Updating plugin: $plugin"
-    asdf plugin update "$plugin"
-  else
-    log_info "Adding plugin: $plugin"
-    asdf plugin add "$plugin"
-  fi
-
-  log_info "Installing $plugin $version"
-  asdf install "$plugin" "$version"
-}
-
-require_cmd asdf
-sync_tool_versions
diff --git a/sbx-kits/asdf/files/home/.local/bin/update-asdf b/sbx-kits/asdf/files/home/.local/bin/update-asdf
deleted file mode 100755
index 4215f7c..0000000
--- a/sbx-kits/asdf/files/home/.local/bin/update-asdf
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-# shellcheck source=asdf-utils.sh
-source "$SCRIPT_DIR/asdf-utils.sh"
-
-require_dependencies
-load_latest_release
-
-INSTALLED_VERSION="$(installed_version)"
-
-if [[ -n "${INSTALLED_VERSION:-}" && "$INSTALLED_VERSION" == "$ASDF_TARGET_VERSION" ]]; then
-  log_info "No update needed. asdf is already latest version $ASDF_TARGET_VERSION."
-  exit 0
-fi
-
-install_latest
diff --git a/sbx-kits/asdf/spec.yml b/sbx-kits/asdf/spec.yml
deleted file mode 100644
index be6a741..0000000
--- a/sbx-kits/asdf/spec.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-schemaVersion: "1"
-kind: mixin
-name: asdf
-displayName: asdf
-description: The `asdf` tool version manager.
-
-commands:
-  install:
-    #- command: install-asdf
-    #  user: "1000"
-    #  description: Install asdf
-    - command: echo 'export PATH="$HOME/.asdf/shims:$PATH"' >> /etc/sandbox-persistent.sh
-      user: "0"
-      description: Add asdf shims to $PATH
-  startup:
-    - command: [update-asdf]
-      user: "1000"
-      description: Update asdf to latest version
-      background: false
-    - command: [sync-asdf-tools]
-      user: "1000"
-      description: Update asdf tools to specified version
-      background: false
diff --git a/src/App.css b/src/App.css
deleted file mode 100644
index 0e5efb1..0000000
--- a/src/App.css
+++ /dev/null
@@ -1,5 +0,0 @@
-.page {
-  max-width: 48rem;
-  margin: 0 auto;
-  padding: 4rem 1.5rem;
-}
diff --git a/src/App.tsx b/src/App.tsx
index a553bc9..1f4bdb0 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,11 +1,8 @@
-import '@picocss/pico/css/pico.min.css'
-import './App.css'
-
 export default function App() {
   return (
-    <main className="page">
-      <h1>Bun with React</h1>
-      <p>Start building amazing things with Bun.</p>
+    <main>
+      <h1>React SPA Starter template</h1>
+      <p>Build your SPA here...</p>
     </main>
   )
 }
diff --git a/src/index.css b/src/index.css
new file mode 100644
index 0000000..4aa5104
--- /dev/null
+++ b/src/index.css
@@ -0,0 +1 @@
+@import '@picocss/pico/css/pico.min.css';
diff --git a/src/index.html b/src/index.html
index f124e26..a92e2ed 100644
--- a/src/index.html
+++ b/src/index.html
@@ -4,9 +4,10 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Prototype</title>
+    <link href="index.css" rel="stylesheet" />
   </head>
   <body>
-    <div id="root"></div>
-    <script type="module" src="./index.tsx"></script>
+    <div id="root" />
+    <script type="module" src="./index.tsx" />
   </body>
 </html>