Nanobot — $0 Cost Personal AI
on Google Cloud Free Tier

#!/usr/bin/env bash
# ── Edit if needed ───────────────────────────────────
PROJECT_ID="YOUR_PROJECT_ID"
ZONE="us-central1-a"        # keep for Always Free tier
# ─────────────────────────────────────────────────────

set -euo pipefail
trap 'echo "❌ Script aborted on line $LINENO. Check the gcloud error above." >&2' ERR
VM_NAME="nanobot-vm" ; SA_NAME="nanobot-sa"

echo "🔌  Enabling APIs (Compute + IAM)…"
gcloud services enable compute.googleapis.com iam.googleapis.com \
  --project="$PROJECT_ID"
echo "   ↳ APIs confirmed."

echo "🔐  Creating restricted service account (no IAM roles)…"
set +e  # Allow SA creation to fail without stopping script
gcloud iam service-accounts create "$SA_NAME" \
  --display-name="Nanobot SA — zero GCP permissions" \
  --project="$PROJECT_ID" 2>&1 | grep -q "already exists" && echo "   ↳ Service account already exists (OK)" || true
set -e  # Re-enable exit on error
SA_EMAIL="${SA_NAME}@${PROJECT_ID}.iam.gserviceaccount.com"

echo "🖥️   Creating free-tier VM (with swap auto-configured on first boot)…"

# Write startup script to temp file (configures 2GB swap on first boot)
cat > /tmp/startup.sh << 'STARTUP_EOF'
#!/bin/bash
if [ ! -f /swapfile ]; then
  fallocate -l 2G /swapfile && chmod 600 /swapfile
  mkswap /swapfile && swapon /swapfile
  echo "/swapfile none swap sw 0 0" >> /etc/fstab
  sysctl -w vm.swappiness=10
  echo "vm.swappiness=10" >> /etc/sysctl.conf
fi
STARTUP_EOF

gcloud compute instances create "$VM_NAME" \
  --project="$PROJECT_ID" \
  --zone="$ZONE" \
  --machine-type=e2-micro \
  --image-project=debian-cloud \
  --image-family=debian-12 \
  --boot-disk-size=10GB \
  --boot-disk-type=pd-standard \
  --boot-disk-auto-delete \
  --service-account="$SA_EMAIL" \
  --scopes=https://www.googleapis.com/auth/logging.write,https://www.googleapis.com/auth/monitoring.write \
  --metadata=block-project-ssh-keys=true \
  --metadata-from-file=startup-script=/tmp/startup.sh

rm /tmp/startup.sh

echo ""
echo "✅  VM ready! 2 GB swap will be live by the time you SSH in."
echo ""
echo "▶  SSH into your VM:"
echo "   gcloud compute ssh $VM_NAME --zone=$ZONE --project=$PROJECT_ID"

gcloud compute ssh nanobot-vm \
  --zone=us-central1-a \
  --project="YOUR_PROJECT_ID"

#!/usr/bin/env bash
# ── Your values (pre-filled from the form above) ──────────────────────────────
LINUX_USER="YOUR_LINUX_USERNAME"
TELEGRAM_TOKEN="YOUR_TELEGRAM_BOT_TOKEN"
TELEGRAM_USER_ID=YOUR_TELEGRAM_USER_ID
GEMINI_API_KEY="YOUR_GEMINI_API_KEY"
TAVILY_API_KEY="YOUR_TAVILY_API_KEY"
# ──────────────────────────────────────────────────────────────────────────────

set -euo pipefail
NANOBOT_DIR="/home/${LINUX_USER}/.nanobot"

echo "📦  Updating system…"
sudo apt-get update -qq && sudo apt-get upgrade -y -qq

echo "🐍  Installing Python…"
sudo apt-get install -y -qq python3-venv python3-pip

echo "📁  Creating directories…"
mkdir -p "${NANOBOT_DIR}/workspace"

echo "🔧  Creating virtual environment…"
python3 -m venv "${NANOBOT_DIR}/venv"

echo "📥  Installing nanobot-ai…"
"${NANOBOT_DIR}/venv/bin/pip" install --upgrade pip -q
"${NANOBOT_DIR}/venv/bin/pip" install nanobot-ai -q

echo "📝  Writing config.json…"
cat > "${NANOBOT_DIR}/config.json" << EOF
{
  "agents": {
    "defaults": {
      "workspace": "/home/${LINUX_USER}/.nanobot/workspace",
      "model": "google/gemini-2.0-flash",
      "maxToolIterations": 20
    }
  },
  "providers": {
    "google": { "apiKey": "${GEMINI_API_KEY}" }
  },
  "channels": {
    "telegram": {
      "enabled": true,
      "token": "${TELEGRAM_TOKEN}",
      "allowFrom": [${TELEGRAM_USER_ID}]
    }
  },
  "tools": {
    "web": {
      "search": {
        "type": "tavily",
        "apiKey": "${TAVILY_API_KEY}",
        "maxResults": 5
      }
    },
    "exec": { "enabled": false }
  }
}
EOF

chmod 600 "${NANOBOT_DIR}/config.json"

echo ""
echo "════════════════════════════════════════════"
echo "✅  Nanobot installed successfully!"
echo "════════════════════════════════════════════"
echo ""
echo "▶  Test (foreground):  ~/.nanobot/venv/bin/nanobot gateway"
echo "▶  Background:         nohup ~/.nanobot/venv/bin/nanobot gateway > ~/.nanobot/nanobot.log 2>&1 &"