diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..4da50fb
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,3 @@
+# Copy to .env and fill values
+APP_ENV=development
+PORT=3000
diff --git a/.github/workflows/standard-ci.yml b/.github/workflows/standard-ci.yml
new file mode 100644
index 0000000..8120338
--- /dev/null
+++ b/.github/workflows/standard-ci.yml
@@ -0,0 +1,43 @@
+name: Standard CI
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        if: ${{ hashFiles('package.json') != '' }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Setup Python
+        if: ${{ hashFiles('requirements.txt') != '' }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install Node deps
+        if: ${{ hashFiles('package.json') != '' }}
+        run: |
+          npm install -g pnpm || true
+          if [ -f pnpm-lock.yaml ]; then pnpm install --frozen-lockfile; else npm ci || npm install; fi
+
+      - name: Install Python deps
+        if: ${{ hashFiles('requirements.txt') != '' }}
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+          pip install pytest || true
+
+      - name: Run tests
+        run: |
+          chmod +x scripts/test.sh || true
+          if [ -f scripts/test.sh ]; then ./scripts/test.sh; else echo "No scripts/test.sh"; fi
diff --git a/scripts/check-env.sh b/scripts/check-env.sh
new file mode 100755
index 0000000..873f048
--- /dev/null
+++ b/scripts/check-env.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+required=(APP_ENV)
+
+if [[ -f .env ]]; then
+  # shellcheck disable=SC1091
+  source .env
+fi
+
+missing=()
+for key in "${required[@]}"; do
+  if [[ -z "${!key:-}" ]]; then
+    missing+=("$key")
+  fi
+done
+
+if (( ${#missing[@]} > 0 )); then
+  echo "Missing required env vars: ${missing[*]}" >&2
+  exit 1
+fi
+
+echo "Environment looks good"
diff --git a/scripts/e2e.sh b/scripts/e2e.sh
new file mode 100755
index 0000000..a022b93
--- /dev/null
+++ b/scripts/e2e.sh
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[e2e] Running end-to-end checks"
+
+if [[ -f package.json ]]; then
+  if command -v pnpm >/dev/null 2>&1; then
+    pnpm run e2e
+  else
+    npm run e2e
+  fi
+  exit 0
+fi
+
+echo "[e2e] No e2e runner configured"
diff --git a/scripts/setup.sh b/scripts/setup.sh
new file mode 100755
index 0000000..fb689e8
--- /dev/null
+++ b/scripts/setup.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[setup] Starting project setup"
+
+if [[ -f package.json ]]; then
+  if command -v pnpm >/dev/null 2>&1; then
+    pnpm install
+  elif command -v npm >/dev/null 2>&1; then
+    npm install
+  else
+    echo "[setup][error] node package manager not found" >&2
+    exit 1
+  fi
+fi
+
+if [[ -f requirements.txt ]]; then
+  if [[ ! -d .venv ]]; then
+    python3 -m venv .venv
+  fi
+  # shellcheck disable=SC1091
+  source .venv/bin/activate
+  pip install --upgrade pip
+  pip install -r requirements.txt
+fi
+
+./scripts/check-env.sh || true
+
+echo "[setup] Done"
diff --git a/scripts/start.sh b/scripts/start.sh
new file mode 100755
index 0000000..11402b2
--- /dev/null
+++ b/scripts/start.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[start] Starting app"
+
+if [[ -f package.json ]]; then
+  if command -v pnpm >/dev/null 2>&1; then
+    exec pnpm start
+  else
+    exec npm start
+  fi
+fi
+
+if [[ -f app.py ]]; then
+  if [[ -d .venv ]]; then
+    # shellcheck disable=SC1091
+    source .venv/bin/activate
+  fi
+  export FLASK_APP=app.py
+  exec flask run --host 0.0.0.0 --port "${PORT:-5000}"
+fi
+
+echo "[start][error] No known app entrypoint found" >&2
+exit 1
diff --git a/scripts/test.sh b/scripts/test.sh
new file mode 100755
index 0000000..710b72c
--- /dev/null
+++ b/scripts/test.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[test] Running unit/integration tests"
+
+if [[ -f package.json ]]; then
+  if command -v pnpm >/dev/null 2>&1; then
+    pnpm test
+  else
+    npm test
+  fi
+  exit 0
+fi
+
+if compgen -G "tests/*.py" >/dev/null || compgen -G "test_*.py" >/dev/null; then
+  if [[ -d .venv ]]; then
+    # shellcheck disable=SC1091
+    source .venv/bin/activate
+  fi
+  python -m pytest
+  exit 0
+fi
+
+echo "[test] No tests detected"