Auto-terminate. Zero surprise bills.
Watch how spore.host finds the cheapest EC2 instances and launches them in seconds
Find and discover instance types, check Spot prices, manage quotas
No AWS account neededLaunch instances in 2 minutes with interactive wizard or CLI
Auto-terminationMonitor automatically with TTL, idle detection, and hibernation
Laptop-independent# Install via Homebrew
brew install scttfrdmn/tap/truffle
brew install scttfrdmn/tap/spawn
# Launch your first instance
spawn
# Install via Scoop
scoop bucket add scttfrdmn https://github.com/scttfrdmn/scoop-bucket
scoop install truffle
scoop install spawn
# Launch your first instance
spawn
# Download from GitHub releases
# https://github.com/scttfrdmn/mycelium/releases/latest
# Extract and run
tar -xzf spawn_*_$(uname -s)_$(uname -m).tar.gz
./spawn
$ truffle spot "t3.*" --sort-by-price
┌─────────────────────────────────────────────────────────────┐
│ 🔍 Truffle - EC2 Spot Instance Search │
└─────────────────────────────────────────────────────────────┘
Instance Type vCPUs Memory Spot Price Region Savings
─────────────────────────────────────────────────────────────────
t3.nano 2 0.5 GB $0.0016/hr us-east-1 95%
t3.micro 2 1.0 GB $0.0031/hr us-east-1 94%
t3.small 2 2.0 GB $0.0063/hr us-east-1 93%
t3.medium 2 4.0 GB $0.0125/hr us-east-2 92%
t3.large 2 8.0 GB $0.0250/hr us-west-2 91%
✓ Found 5 instances with spot capacity available
$ truffle spot "t3.*" --sort-by-price --pick-first | spawn --ttl 8h
🍄 Launching instance...
Type: t3.nano (2 vCPUs, 0.5 GB RAM)
Region: us-east-1
Cost: $0.0016/hr (~$0.01/day)
TTL: 8h (auto-terminates)
✓ Instance i-0abc123 running
✓ SSH: ssh ec2-user@3.84.123.45
✓ Auto-terminates in 8h 0m
Cost: ~$0.01/hr • Auto-terminates after 8h
$ spawn
🍄 Welcome to spawn - Launch EC2 instances in 2 minutes
? Instance type: t3.small
? Region: us-east-1
? TTL (auto-terminate): 4h
? SSH key: my-key
? Launch? Yes
🚀 Launching...
✓ Instance i-0def456 running in 45s
✓ IP: 18.234.56.78
✓ SSH: ssh ec2-user@18.234.56.78
Your instance will auto-terminate in 3h 59m
$ truffle capacity --instance-types g5.xlarge | spawn --ttl 24h --hibernate-on-idle
✓ g5.xlarge available in us-west-2
🍄 Launching GPU instance...
✓ Instance running with NVIDIA A10G GPU
✓ Hibernation enabled (saves 99% cost when idle)
✓ Auto-terminates in 24h if not extended
Cost: $1.006/hr active, $0.01/hr hibernated