diff --git a/setup_env.sh b/setup_env.sh
index ee5eba4..6067772 100755
--- a/setup_env.sh
+++ b/setup_env.sh
@@ -284,11 +284,12 @@ if [[ "$(uname -s)" == "Darwin" ]]; then
 
     # ---- Interactive component selection ----
     # Component IDs and descriptions
-    COMP_IDS=(postgresql mise node erlang chromium vnc ollama claude opencode playwright plugins)
+    COMP_IDS=(postgresql mise node python erlang chromium vnc ollama claude opencode playwright plugins)
     COMP_NAMES=(
         "PostgreSQL"
         "mise"
         "Node.js (LTS)"
+        "Python (latest)"
         "Erlang/Elixir"
         "Chromium"
         "VNC + XFCE"
@@ -300,8 +301,9 @@ if [[ "$(uname -s)" == "Darwin" ]]; then
     )
     COMP_DESCS=(
         "Database server for local development"
-        "Version manager for Node.js, Erlang, Elixir"
+        "Version manager for Node.js, Python, Erlang, Elixir"
         "JavaScript runtime (required for Claude/OpenCode)"
+        "Python runtime managed by mise"
         "BEAM VM + Elixir functional language"
         "Browser for automation and testing"
         "Remote desktop for browser-based login flows"
@@ -931,6 +933,15 @@ install_node() {
     export PATH="$HOME/.local/share/mise/shims:$PATH"
 }
 
+install_python() {
+    export PATH="$HOME/.local/bin:$PATH"
+    eval "$(~/.local/bin/mise activate bash)"
+    mise use -g python@latest
+    export PATH="$HOME/.local/share/mise/shims:$PATH"
+    # Ensure pip is available via mise python
+    python -m pip install --upgrade pip
+}
+
 install_erlang() {
     export PATH="$HOME/.local/bin:$PATH"
     eval "$(~/.local/bin/mise activate bash)"
@@ -1094,17 +1105,22 @@ install_tidewave() {
         return 0
     fi
 
-    # Download Tidewave CLI binary
-    local arch
-    arch=$(detect_architecture)
+    # Download Tidewave CLI binary from tidewave_app releases
+    # Binary naming: tidewave-cli-<arch>-unknown-linux-musl
+    local machine_arch
+    machine_arch=$(uname -m)
     local tidewave_arch=""
-    case "$arch" in
-        amd64) tidewave_arch="x86_64-unknown-linux-gnu" ;;
-        arm64) tidewave_arch="aarch64-unknown-linux-gnu" ;;
+    case "$machine_arch" in
+        x86_64)  tidewave_arch="x86_64" ;;
+        aarch64) tidewave_arch="aarch64" ;;
+        *)
+            log_error "Unsupported architecture for Tidewave: $machine_arch"
+            return 1
+            ;;
     esac
 
-    # Get latest release URL from GitHub
-    local release_url="https://github.com/tidewave-ai/tidewave/releases/latest/download/tidewave-${tidewave_arch}"
+    # Get latest release URL from GitHub (tidewave_app repo)
+    local release_url="https://github.com/tidewave-ai/tidewave_app/releases/latest/download/tidewave-cli-${tidewave_arch}-unknown-linux-musl"
 
     # Security: Download to temp file first, validate, then install
     local temp_file
@@ -1296,6 +1312,7 @@ register_step "base"       "System packages (git, build tools, curl)"
 register_step "postgresql" "PostgreSQL database server"
 register_step "mise"       "mise version manager"
 register_step "node"       "Node.js LTS runtime"
+register_step "python"     "Python (mise-managed)"
 register_step "erlang"     "Erlang/OTP VM"
 register_step "elixir"     "Elixir language"
 register_step "chromium"   "Chromium browser"
@@ -1311,6 +1328,7 @@ register_step "plugins"    "Claude Code plugins"
 should_skip "postgresql" && skip_step "postgresql"
 should_skip "mise"       && skip_step "mise"
 should_skip "node"       && skip_step "node"
+should_skip "python"     && skip_step "python"
 should_skip "erlang"     && skip_step "erlang"
 should_skip "chromium"   && skip_step "chromium"
 should_skip "vnc"        && skip_step "vnc"
@@ -1326,9 +1344,11 @@ should_skip "plugins"    && skip_step "plugins"
 # Tidewave skipped if Erlang skipped (it's for Phoenix/Elixir projects)
 [ "${STEP_STATUS[erlang]}" = "skipped" ] && skip_step "tidewave"
 
+# Python skipped if mise skipped
+[ "${STEP_STATUS[mise]}" = "skipped" ] && skip_step "python"
+
 # Claude/OpenCode/Playwright skipped if Node skipped
 if [ "${STEP_STATUS[node]}" = "skipped" ]; then
-    [ "${STEP_STATUS[mise]}" = "skipped" ] || true  # mise can still install
     skip_step "claude"
     skip_step "opencode"
     skip_step "playwright"
@@ -1369,10 +1389,11 @@ run_step_sync "base" install_base_deps || true
 wait_for_running_steps
 
 # ============================================================================
-# Phase 3: Node + Erlang (parallel, both need mise)
+# Phase 3: Node + Python + Erlang (parallel, all need mise)
 # ============================================================================
 if [ "${STEP_STATUS[mise]}" = "done" ]; then
     [ "${STEP_STATUS[node]}" != "skipped" ]   && start_step "node" install_node
+    [ "${STEP_STATUS[python]}" != "skipped" ] && start_step "python" install_python
     [ "${STEP_STATUS[erlang]}" != "skipped" ] && start_step "erlang" install_erlang
     wait_for_running_steps
 fi