diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..efdf004
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+set -e
+
+REPO="chris/agent-tui"
+BASE_URL="https://gitea.yeeted.lol"
+INSTALL_DIR="${INSTALL_DIR:-/usr/local/bin}"
+TAG="${1:-v0.1.0}"
+
+OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+ARCH=$(uname -m)
+
+case "$ARCH" in
+  x86_64|amd64) ARCH="amd64" ;;
+  arm64|aarch64) ARCH="arm64" ;;
+  *) echo "Unsupported architecture: $ARCH" >&2; exit 1 ;;
+esac
+
+case "$OS" in
+  darwin|linux) ;;
+  *) echo "Unsupported OS: $OS" >&2; exit 1 ;;
+esac
+
+BINARY="agent-tui-${OS}-${ARCH}"
+URL="${BASE_URL}/${REPO}/releases/download/${TAG}/${BINARY}"
+
+echo "Downloading ${BINARY} (${TAG})..."
+TMP=$(mktemp)
+trap 'rm -f "$TMP"' EXIT
+
+if command -v curl >/dev/null 2>&1; then
+  curl -fSL -o "$TMP" "$URL"
+elif command -v wget >/dev/null 2>&1; then
+  wget -qO "$TMP" "$URL"
+else
+  echo "Error: curl or wget required" >&2
+  exit 1
+fi
+
+chmod +x "$TMP"
+
+if [ -w "$INSTALL_DIR" ]; then
+  mv "$TMP" "${INSTALL_DIR}/agent-tui"
+else
+  echo "Installing to ${INSTALL_DIR} (requires sudo)..."
+  sudo mv "$TMP" "${INSTALL_DIR}/agent-tui"
+fi
+
+echo "Installed agent-tui to ${INSTALL_DIR}/agent-tui"