docs: add supernova to the docs

docs/README.md

@@ -30,6 +30,7 @@ Gno-specific features, connect to Gno apps with clients, and more.
 - [Example `minisocial` dApp](builders/example-minisocial-dapp.md) - Build a complete social media application while learning the full local development workflow for Gno packages.
 - [Deploying Gno packages](builders/deploy-packages.md) - Learn how to deploy your code to Gno.land networks using `gnokey` and understand gas requirements.
 - [Connecting clients](builders/connect-clients-and-apps.md) - Discover how to connect external applications to Gno.land networks using both Go and JavaScript clients.
+- [Stress testing with Supernova](builders/stress-testing-with-supernova.md) - Learn how to stress test your Gno network using `supernova` to measure performance.
 - [Become a Gnome](builders/become-a-gnome.md) - Learn what makes a great Gno.land contributor and how to showcase your work in the ecosystem.
 
 ## Resources

docs/builders/stress-testing-with-supernova.md

@@ -0,0 +1,151 @@
+# Stress Testing with Supernova
+
+## What is Supernova?
+
+[Supernova](https://github.com/gnolang/supernova) is a stress-testing
+tool designed specifically for Gno TM2 networks. It helps node operators
+and developers understand how their network behaves under load by
+simulating realistic transaction patterns and measuring performance
+metrics.
+
+## Why Stress Test Your Network?
+
+Stress testing answers critical questions before production deployment:
+
+| Question | Why It Matters |
+|----------|----------------|
+| What's my maximum TPS? | Know when performance will degrade under load |
+| How do gas limits affect throughput? | Optimize block parameters |
+| Where are the bottlenecks? | Find issues in consensus, storage, or network |
+| How do workloads differ? | Plan capacity for deployments vs calls |
+
+## How Supernova Works
+
+Supernova operates in three phases:
+
+### 1. Account Setup
+
+Supernova derives multiple subaccounts from a single mnemonic. This simulates
+realistic conditions where transactions come from many different addresses,
+testing the network's ability to handle concurrent account state updates.
+
+The tool automatically distributes funds from the main account (index 0) to
+all subaccounts before the test begins.
+
+### 2. Transaction Generation
+
+Based on the selected mode, supernova constructs and signs transactions.
+
+## Stress Testing Modes
+
+| Mode | What it Does | Best For |
+|------|--------------|----------|
+| REALM_DEPLOYMENT | Deploys a new realm per tx | Heavy workloads |
+| PACKAGE_DEPLOYMENT | Deploys pure packages | Code storage |
+| REALM_CALL | Deploys realm, calls methods | Production |
+
+For most production scenarios, REALM_CALL provides the most relevant metrics
+since it simulates typical user interactions.
+
+### 3. Result Collection
+
+After broadcasting transactions, supernova monitors the blockchain to collect
+metrics like TPS, block utilization, and gas consumption.
+
+## Understanding the Results
+
+### TPS (Transactions Per Second)
+
+TPS reflects real-world throughput, accounting for:
+- Transaction propagation time
+- Block production intervals
+- Consensus overhead
+
+A higher TPS indicates better network performance, but the optimal value
+depends on your hardware, network configuration, and block parameters.
+
+### Block Utilization
+
+Block utilization reveals how efficiently blocks are being filled:
+
+- **Low utilization (\<50%)**: The network has spare capacity. Transaction
+  volume is below what the network can handle.
+- **High utilization (\>80%)**: The network is near capacity. Consider
+  increasing gas limits or optimizing transaction costs.
+- **Variable utilization**: May indicate inconsistent transaction batching or
+  network congestion patterns.
+
+## When to Use Supernova
+
+- **Before deployment**: Validate your network can handle expected load
+- **After configuration changes**: Verify block gas limits, timing parameters
+- **During capacity planning**: Determine hardware requirements for target TPS
+- **Comparing node implementations**: Benchmark different setups objectively
+
+## Integration with Monitoring
+
+For deeper insights, run supernova against a node with
+[OpenTelemetry enabled](../../misc/telemetry/README.md). This allows you to
+correlate supernova's transaction metrics with internal node metrics like:
+
+- Memory and CPU usage during load
+- Consensus round timing
+- Storage I/O patterns
+- Network message latency
+
+## Getting Started
+
+### Prerequisites
+
+- Go 1.19 or higher
+- A running Gno node (e.g., via `gnodev` or `gnoland start`)
+- A funded mnemonic (the first derived address needs funds for distribution)
+
+### Installation
+
+```bash
+# Clone the repository
+git clone https://github.com/gnolang/supernova.git
+cd supernova
+
+# Build the binary
+make build
+
+# The binary will be at ./build/supernova
+```
+
+### Basic Usage
+
+```bash
+./build/supernova \
+  -url http://localhost:26657 \
+  -mnemonic "source bonus chronic canvas draft south burst lottery \
+vacant surface solve popular case indicate oppose farm nothing bullet \
+exhibit title speed wink action roast" \
+  -sub-accounts 5 \
+  -transactions 100 \
+  -mode REALM_CALL \
+  -output results.json
+```
+
+You can check the results in `results.json`. For production-grade
+testing, increase `-sub-accounts` (50-100) and `-transactions` (5000+).
+
+### CLI Flags
+
+| Flag | Default | Description |
+|------|---------|-------------|
+| `-url` | (required) | JSON-RPC URL of the Gno node |
+| `-mnemonic` | (required) | Mnemonic for deriving accounts |
+| `-sub-accounts` | 1 | Number of accounts sending transactions |
+| `-transactions` | 10 | Total transactions to send |
+| `-mode` | REALM_DEPLOYMENT | Transaction mode (see Modes section) |
+| `-batch` | 100 | Batch size for JSON-RPC calls |
+| `-chain-id` | dev | Chain ID of the network |
+| `-output` | (none) | Path to save results JSON |
+
+### Resources
+
+- [Supernova GitHub repository](https://github.com/gnolang/supernova)
+- [Benchmark reports](
+  https://github.com/gnolang/benchmarks/tree/main/reports/supernova)

misc/docs/sidebar.json

@@ -24,6 +24,7 @@
           "builders/example-minisocial-dapp",
           "builders/deploy-packages",
           "builders/connect-clients-and-apps",
+          "builders/stress-testing-with-supernova",
           "builders/become-a-gnome"
         ]
       },