### Quick Start: Setup and Common Commands

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-testing-debugging/resources/examples/README.md

Provides essential commands for setting up any example directory, including creating virtual environments, installing dependencies (Maturin, Pytest), building the extension, and running tests.

```bash
# Navigate to example directory
cd <example_directory>

# Create virtual environment
python -m venv .venv

# Activate virtual environment
source .venv/bin/activate  # On Windows: .venv\Scripts\activate

# Install dependencies
pip install maturin pytest

# Build and install the PyO3 extension
maturin develop

# Run Rust tests
# cargo test

# Run Python tests
# pytest tests/ -v

```

--------------------------------

### Manual Setup: Wait for Services

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Pauses execution for 5 seconds to allow Qdrant and Redis services to start up properly before proceeding with further setup steps.

```bash
sleep 5
```

--------------------------------

### Make Setup Command

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Runs the 'setup' target in the Makefile, which typically automates the entire setup process including infrastructure, dependencies, and build.

```bash
make setup
```

--------------------------------

### Manual Setup: Start Infrastructure

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Starts Qdrant and Redis services in detached mode using Docker Compose. These are essential for the RAG system's operation.

```bash
docker-compose up -d qdrant redis
```

--------------------------------

### Project Setup: Install Testing Frameworks (Bash)

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/test-driven-development/resources/examples/workflows/tdd-workflow.md

Commands to install common testing frameworks and their extensions for Python, TypeScript/JavaScript. Includes options for pip and uv for Python, and npm for JS/TS.

```bash
# Python
pip install pytest pytest-cov pytest-watch
# or with uv:
uv add --dev pytest pytest-cov pytest-watch

# TypeScript/JavaScript
npm install --save-dev jest @types/jest ts-jest
# or
npm install --save-dev vitest

# Rust
# Already included in cargo

# Go
# Already included in go toolchain
```

--------------------------------

### Initial Tailscale Setup and Status

Source: https://github.com/rand/cc-polymath/blob/main/skills/networking/tailscale-vpn.md

Commands to start Tailscale, authenticate the connection by opening a browser, check the connection status, and retrieve the Tailscale IP address.

```bash
# Start tailscale
sudo tailscale up

# Authenticate (opens browser)
# Follow link to authenticate with your account

# Check status
tailscale status

# Get your IP
tailscale ip -4
```

--------------------------------

### Bash Script Examples for Running Services and Infrastructure

Source: https://github.com/rand/cc-polymath/blob/main/skills/observability/distributed-tracing.md

Provides bash commands for running the example services and the necessary tracing infrastructure. Includes commands to start Python, TypeScript, and Go services, as well as instructions to launch the Docker Compose setup for Jaeger and the OpenTelemetry Collector.

```bash
# Run example services
python examples/python/otel_fastapi_tracing.py
ts-node examples/typescript/otel_express_tracing.ts
go run examples/go/otel_http_tracing.go

# Start tracing infrastructure using Docker Compose
docker-compose -f examples/docker/jaeger-compose.yml up -d

# Access Jaeger UI after starting infrastructure
# Open your browser to: http://localhost:16686

```

--------------------------------

### Setup PyO3 Debugging Environment

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-testing-debugging/resources/examples/08_debugging_setup/README.md

This snippet shows the initial setup for debugging PyO3 extensions. It involves creating a Python virtual environment, activating it, installing the 'maturin' build tool, and then running 'maturin develop' which defaults to a debug build. This prepares the project for debugging with tools like GDB or LLDB.

```bash
python -m venv .venv
source .venv/bin/activate
pip install maturin
maturin develop  # Debug build by default
```

--------------------------------

### Alembic Migrations Setup Example (Python)

Source: https://github.com/rand/cc-polymath/blob/main/skills/database/postgres-migrations.md

This example provides a complete Alembic setup for managing Python database migrations. It includes configuration files (`alembic.ini`, `env.py`) and example migration scripts for initializing the schema and adding tables, along with instructions for setup and usage.

```python
# alembic.ini example snippet
[alembic]
script_location = alembic
db_url = postgresql://user:password@host:port/database

# env.py example snippet
from logging.config import fileConfig
from sqlalchemy import engine_from_config
from sqlalchemy import pool
from alembic import context

# this is the Alembic Config object, which provides
# access to the values within the .ini file relative to \n# the 'here' directory.
config = context.config

# Interpret the config file for Python logging.
# This line sets up loggers basically. \nif config.config_file_name is not None:
    fileConfig(config.config_file_name)

# add your model's MetaData object here
# for 'autogenerate' support
# from myapp import mymodel
# target_metadata = mymodel.Base.metadata
target_metadata = None # Replace with your MetaData object

# other values from the config, defined by the needs of env.py, \n# can be acquired: \n# my_important_option = config.get_main_option("my_important_option")
# ... etc.

def run_migrations_offline():
    """Run migrations in 'offline' mode. \n    This configures the context with just a URL
    and not an Engine, though an Engine is acceptable
    here as well for streaming migrations using databases
    like MySQL to the script output.
    """
    url = config.get_main_option("sqlalchemy.url")
    context.configure(
        url=url, 
        target_metadata=target_metadata,
        literal_binds=True,
        dialect_opts={"paramstyle": "named"},
    )

    with context.begin_transaction():
        context.run_migrations()

def run_migrations_online():
    """Run migrations in 'online' mode. \n    In this scenario we need to create an Engine
    and associate a connection with the context.
    """
    connectable = engine_from_config(
        config.get_section(config.config_file_name, "alembic:"),
        prefix="sqlalchemy. திராட்சை",
        poolclass=pool.NullPool,
    )

    with connectable.connect() as connection:
        context.configure(
            connection=connection,
            target_metadata=target_metadata
        )

        with context.begin_transaction():
            context.run_migrations()

if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()

# Example migration file (versions/xxxxxxxxx_initial_schema.py)
"""Initial schema"""

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'xxxxxxxxxxxx'
down_revision = None
revisable_by = None


def upgrade():
    op.create_table(
        'users', 
        sa.Column('id', sa.Integer, primary_key=True),
        sa.Column('name', sa.String(50), nullable=False)
    )
    op.create_table(
        'posts', 
        sa.Column('id', sa.Integer, primary_key=True),
        sa.Column('user_id', sa.Integer, sa.ForeignKey('users.id')),
        sa.Column('title', sa.String(100), nullable=False)
    )

def downgrade():
    op.drop_table('posts')
    op.drop_table('users')
```

--------------------------------

### PyPI Server Setup and Usage for Python

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/dependency-management/resources/REFERENCE.md

Installation and running commands for `pypi-server` to host a private Python package registry. Includes commands for uploading packages and configuring pip.

```bash
# Install
pip install pypiserver

# Run
pypi-server -p 8080 /path/to/packages

# Upload package
twine upload --repository-url http://localhost:8080 dist/*
```

```ini
[global]
index-url = http://localhost:8080/simple/
trusted-host = localhost
```

--------------------------------

### Automated Setup Script

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Executes the setup script to automate the process of starting infrastructure, creating collections, installing dependencies, and building the Rust application.

```bash
./scripts/setup.sh
```

--------------------------------

### Install Sphinx and Build HTML Documentation

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-packaging-distribution/resources/examples/10_production_release/README.md

This demonstrates how to install necessary Sphinx dependencies and build the HTML documentation locally.

```bash
# Install dependencies
pip install sphinx sphinx-rtd-theme

# Build HTML
cd docs
make html

# View locally
open _build/html/index.html
```

--------------------------------

### Manual Setup: Install Python Dependencies

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Installs Python dependencies listed in 'python/requirements.txt' using pip3. This is necessary for the Python components of the RAG system.

```bash
pip3 install -r python/requirements.txt
```

--------------------------------

### Verdaccio Private npm Registry Setup and Usage

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/dependency-management/resources/REFERENCE.md

Installation and running commands for Verdaccio, a self-hosted npm registry. Includes configuration example and usage for setting registry, login, and publishing.

```bash
# Install
npm install -g verdaccio

# Run
verdaccio

# Configure
verdaccio --config /path/to/config.yaml
```

```yaml
storage: /path/to/storage

auth:
  htpasswd:
    file: /path/to/htpasswd

uplinks:
  npmjs:
    url: https://registry.npmjs.org/

packages:
  '@myorg/*':
    access: $authenticated
    publish: $authenticated
    unpublish: $authenticated

  '**':
    access: $all
    publish: $authenticated
    proxy: npmjs

logs:
  - { type: stdout, format: pretty, level: http }
```

```bash
# Point npm to registry
npm set registry http://localhost:4873/

# Login
npm login --registry http://localhost:4873/

# Publish
npm publish --registry http://localhost:4873/
```

--------------------------------

### Install and Initialize Step CA

Source: https://github.com/rand/cc-polymath/blob/main/skills/cryptography/pki-fundamentals/resources/REFERENCE.md

This snippet covers the installation of the Step CA CLI and its initialization to create a new Certificate Authority. It includes downloading the package, installing it, and then running the `step ca init` command with specified parameters for naming, DNS, address, and provisioner.

```bash
# Install
wget https://dl.step.sm/gh-release/cli/docs-ca-install/v0.24.4/step-cli_0.24.4_amd64.deb
dpkg -i step-cli_0.24.4_amd64.deb

# Initialize CA
step ca init --name="Example CA" \
    --dns="ca.example.com" \
    --address=":443" \
    --provisioner="admin@example.com"
```

--------------------------------

### Bash Commands for Development Environment Setup and Run

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/PROJECT_SUMMARY.md

Commands to set up the development environment and run the application in release mode. Includes running a setup script and then starting the server.

```bash
./scripts/setup.sh
 cargo run --release
```

--------------------------------

### Quick Start: Basic Type Conversion Example

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-fundamentals/resources/examples/README.md

A quick start guide to running the first PyO3 example, demonstrating a basic type conversion (doubling an integer) between Python and Rust.

```python
# Try the first example
cd 01_basic_types
maturin develop
python -c "import basic_types; print(basic_types.double_integer(21))"
```

--------------------------------

### Install Dependencies and Build Project

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-web-frameworks/resources/examples/10_production_api/README.md

Installs necessary Python packages for the FastAPI application and builds the Rust extensions using Maturin.

```bash
pip install maturin fastapi uvicorn pydantic pytest httpx
maturin develop
```

--------------------------------

### Handle Optional Python Dependencies

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-packaging-distribution/resources/examples/05_dependencies/README.md

Provides a Python code example demonstrating how to check for the optional availability of a library like Matplotlib and raise an informative error if it's not installed, guiding the user on how to install it.

```python
# In your Python code
try:
    import matplotlib
    HAS_MATPLOTLIB = True
except ImportError:
    HAS_MATPLOTLIB = False

def plot_data(data):
    if not HAS_MATPLOTLIB:
        raise ImportError("Install with: pip install package[viz]")
    # Use matplotlib
```

--------------------------------

### Install Dependencies and Run QA System

Source: https://github.com/rand/cc-polymath/blob/main/skills/ml/resources/dspy/examples/production-qa/README.md

This snippet shows how to install project dependencies using pip, set necessary environment variables for API keys and Redis, and run the FastAPI server locally or deploy it using Modal. It also includes an example of how to test the system with a curl command.

```bash
# Install dependencies
pip install -r requirements.txt

# Set environment variables
export OPENAI_API_KEY="your-key"
export REDIS_URL="redis://localhost:6379"

# Run locally
python server.py

# Or deploy to Modal
modal deploy server.py

# Test
curl -X POST http://localhost:8000/ask \
  -H "Content-Type: application/json" \
  -d '{"question": "What is Python?"}'
```

--------------------------------

### Heroku Add-on Provisioning Command Example

Source: https://github.com/rand/cc-polymath/blob/main/skills/deployment/heroku-addons.md

Demonstrates the basic command for creating a Heroku add-on. This example shows how an add-on automatically creates a configuration variable, which can then be inspected.

```bash
# Add-on creates config var automatically
heroku addons:create heroku-postgresql:essential-0

# Check created config vars
heroku config | grep DATABASE_URL
# DATABASE_URL: postgres://user:pass@host:5432/dbname
```

--------------------------------

### GET /health

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-production/resources/examples/prometheus-metrics/QUICKSTART.md

Checks the health status of the demo server.

```APIDOC
## GET /health

### Description
Checks the health status of the demo server. This endpoint can be used for monitoring and readiness checks.

### Method
GET

### Endpoint
/health

### Response
#### Success Response (200)
- **status** (string) - Indicates the health status, typically 'ok'.

#### Response Example
```json
{
  "status": "ok"
}
```
```

--------------------------------

### Test Wheel Installation and Import (Bash & Python)

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-packaging-distribution/resources/examples/09_multi_platform/README.md

Tests the installation of a specific wheel file into a clean virtual environment and verifies that the package can be imported and its version accessed. This ensures the wheel is functional on the target platform.

```bash
python -m venv test_env
source test_env/bin/activate
pip install dist/multi_platform-*-cp311-*-$(python -c "import sysconfig; print(sysconfig.get_platform().replace('-', '_').replace('.', '_'))").whl
python -c "import multi_platform; print(multi_platform.__version__)"
```

--------------------------------

### Kubernetes Tailscale Operator Installation

Source: https://github.com/rand/cc-polymath/blob/main/skills/networking/tailscale-vpn.md

This command installs the Tailscale operator in a Kubernetes cluster, enabling automatic Tailscale integration for services.

```bash
kubectl apply -f https://github.com/tailscale/tailscale/releases/latest/download/operator.yaml
```

--------------------------------

### Verify PyPI Package Installation and Version

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-packaging-distribution/resources/examples/10_production_release/README.md

These commands verify that your package has been uploaded to PyPI, can be installed, and reports the correct version.

```bash
# Check on PyPI
pip search production_release

# Install from PyPI
pip install production_release==1.0.0

# Verify
python -c "import production_release; print(production_release.__version__)"
```

--------------------------------

### Makefile to CMake Migration Example

Source: https://github.com/rand/cc-polymath/blob/main/skills/build-systems/build-system-selection.md

Demonstrates the migration from a simple Makefile to a CMakeLists.txt file. The CMake example shows how to define an executable and specify include directories, offering better cross-platform support and dependency management than Make.

```bash
# Before (Makefile)
gcc -o myapp main.c utils.c -I./include

# After (CMakeLists.txt)
add_executable(myapp main.c utils.c)
target_include_directories(myapp PRIVATE include)
```

--------------------------------

### Install Tailscale

Source: https://github.com/rand/cc-polymath/blob/main/skills/networking/tailscale-vpn.md

Installs Tailscale on macOS using Homebrew, on Ubuntu/Debian via a script (with security recommendations), or pulls the official Docker image.

```bash
# macOS
brew install tailscale
```

```bash
# Ubuntu/Debian
# Download script first
curl -O https://tailscale.com/install.sh
# Verify checksum
sha256sum install.sh
# Review content
less install.sh
# Then execute
bash install.sh
```

```bash
# Docker
docker pull tailscale/tailscale
```

--------------------------------

### GET /metrics

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-production/resources/examples/prometheus-metrics/QUICKSTART.md

Retrieves Prometheus metrics exposed by the demo server.

```APIDOC
## GET /metrics

### Description
Retrieves Prometheus metrics exposed by the demo server. These metrics provide insights into prediction counts, cache performance, errors, and latency.

### Method
GET

### Endpoint
/metrics

### Response
#### Success Response (200)
- **metrics** (string) - A text-based response containing Prometheus-formatted metrics.

#### Response Example
```text
# HELP dspy_predictions_total Total number of predictions made
# TYPE dspy_predictions_total counter
dspy_predictions_total{prediction_type="cot",service="dspy_demo",status="success"} 152

# HELP dspy_prediction_duration_seconds Prediction duration in seconds
# TYPE dspy_prediction_duration_seconds histogram
dspy_prediction_duration_seconds_bucket{prediction_type="cot",service="dspy_demo",le="0.1"} 89
dspy_prediction_duration_seconds_bucket{prediction_type="cot",service="dspy_demo",le="0.25"} 152
dspy_prediction_duration_seconds_sum{prediction_type="cot",service="dspy_demo"} 18.4
dspy_prediction_duration_seconds_count{prediction_type="cot",service="dspy_demo"} 152
```
```

--------------------------------

### Build and Run Rust Qdrant Integration Example

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/qdrant-integration/README.md

Builds the Rust project in release mode and then runs the main example. This demonstrates the Rust client's capabilities for interacting with Qdrant.

```bash
cargo build --release
cargo run --release
```

--------------------------------

### HashiCorp Vault: Setup and Initialize

Source: https://github.com/rand/cc-polymath/blob/main/skills/cryptography/key-management/resources/REFERENCE.md

Provides bash commands for setting up and initializing HashiCorp Vault. Includes starting a development server for testing, configuring a production server, initializing the operator, and unsealing the Vault.

```bash
# Start Vault dev server (testing only)
vault server -dev

# Production setup
vault server -config=vault.hcl

# Initialize
vault operator init

# Unseal (required after restart)
vault operator unseal <unseal-key-1>
vault operator unseal <unseal-key-2>
vault operator unseal <unseal-key-3>
```

--------------------------------

### Get API Metrics (Bash)

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Fetches performance metrics from the running application by sending an HTTP GET request to the `/metrics` endpoint on localhost:8080.

```bash
curl http://localhost:8080/metrics

```

--------------------------------

### Node.js gRPC: Install, Server, and Client

Source: https://github.com/rand/cc-polymath/blob/main/skills/protocols/grpc-implementation/resources/REFERENCE.md

Guides users through setting up gRPC in Node.js, covering package installation, and providing examples for both server and client implementations using `@grpc/grpc-js` and `@grpc/proto-loader`.

```bash
npm install @grpc/grpc-js @grpc/proto-loader
```

```javascript
const grpc = require('@grpc/grpc-js');
const protoLoader = require('@grpc/proto-loader');

const packageDefinition = protoLoader.loadSync('users.proto');
const proto = grpc.loadPackageDefinition(packageDefinition);

const server = new grpc.Server();
server.addService(proto.users.v1.UserService.service, {
    getUser: (call, callback) => {
        callback(null, { user: { id: '123', name: 'Alice' } });
    }
});

server.bindAsync('0.0.0.0:50051', grpc.ServerCredentials.createInsecure(), () => {
    server.start();
});
```

```javascript
const client = new proto.users.v1.UserService(
    'localhost:50051',
    grpc.credentials.createInsecure()
);

client.getUser({ id: '123' }, (err, response) => {
    console.log(response.user.name);
});
```

--------------------------------

### Copy Example Nginx Configuration

Source: https://github.com/rand/cc-polymath/blob/main/skills/proxies/nginx-configuration.md

This command copies a pre-defined example Nginx configuration file from the project's examples directory to the Nginx configuration path.

```bash
# 5. Use example configurations
cp skills/proxies/nginx-configuration/resources/examples/reverse-proxy/nginx.conf \
  /etc/nginx/nginx.conf

```

--------------------------------

### Install Optional Python Dependencies (Bash)

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-packaging-distribution/resources/examples/05_dependencies/README.md

Demonstrates how to install the Python package with specific optional dependency groups using pip.

```bash
pip install dependencies_example[dev]
pip install dependencies_example[viz]
pip install dependencies_example[all]
```

--------------------------------

### Install Tailscale in a Dockerfile

Source: https://github.com/rand/cc-polymath/blob/main/skills/networking/tailscale-vpn.md

Provides a Dockerfile to install Tailscale within a Ubuntu-based container. It includes steps for downloading the installer script and executing it, with a note on security best practices for production environments.

```dockerfile
FROM ubuntu:22.04

# Install Tailscale
RUN apt-get update && apt-get install -y \
    curl \
    iptables \
    iproute2

# Download script first
RUN curl -O https://tailscale.com/install.sh && \
    sha256sum install.sh && \
    less install.sh && \
    bash install.sh
```

--------------------------------

### Git Hook Setup with Frameworks

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/git-workflows.md

Explains the concept of Git hooks and provides setup examples using popular frameworks like `pre-commit` (Python) and `husky` (Node.js). It also shows a sample configuration for `pre-commit` hooks.

```bash
# Using pre-commit (Python)
pip install pre-commit
# .pre-commit-config.yaml in repo root
pre-commit install
```

```bash
# Using husky (Node)
npx husky init
```

```yaml
repos:
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: v4.5.0
    hooks:
      - id: trailing-whitespace
      - id: end-of-file-fixer
      - id: check-yaml
      - id: no-commit-to-branch
        args: ['--branch', 'main']
```

--------------------------------

### Setup Script Execution (Bash)

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Executes a setup script named `setup.sh` located in the project's root directory. This script likely performs initial project configuration or setup tasks.

```bash
./scripts/setup.sh

```

--------------------------------

### heaptrack: Installation and Profiling on Linux

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/resources/performance-profiling/REFERENCE.md

Provides installation commands for heaptrack on Ubuntu and CentOS, along with instructions for profiling applications and analyzing the results using `heaptrack_gui` or `heaptrack_print`.

```bash
sudo apt-get install heaptrack heaptrack-gui  # Ubuntu
sudo yum install heaptrack heaptrack-gui      # CentOS

# Record heap allocations
heaptrack ./myapp arg1 arg2

# Analyze with GUI
heaptrack_gui heaptrack.myapp.12345.gz

# Print summary
heaptrack_print heaptrack.myapp.12345.gz
```

--------------------------------

### Create and Run Expo Managed Project

Source: https://github.com/rand/cc-polymath/blob/main/skills/mobile/react-native-setup.md

This snippet demonstrates how to create a new React Native project using the Expo managed workflow with TypeScript, install dependencies, start the development server, and run it on an iOS simulator. It's ideal for rapid prototyping and apps not requiring custom native modules.

```bash
npx create-expo-app@latest MyApp --template blank-typescript
cd MyApp
npm install
npx expo start
npx expo start --ios
npx expo install expo-camera expo-location
```

--------------------------------

### Build and Run Rust Examples

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-async-streaming/resources/examples/token-streaming/README.md

Illustrates the cargo commands to build the Rust project in release mode and run all examples, or specific example modes.

```bash
# Build the project
cargo build --release

# Run all examples
cargo run --release

# Run specific example modes
cargo run --release -- --mode simple
cargo run --release -- --mode concurrent
cargo run --release -- --mode aggregate
cargo run --release -- --mode recovery
```

--------------------------------

### Check System Metrics

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Retrieves system metrics by sending a GET request to the /metrics endpoint. Filters for metrics starting with 'rag_' to view RAG-specific performance data.

```bash
curl http://localhost:8080/metrics | grep rag_
```

--------------------------------

### Run the FastAPI Server

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-web-frameworks/resources/examples/10_production_api/README.md

Starts the Uvicorn server to run the FastAPI application on the specified host and port.

```bash
python app.py
```

--------------------------------

### Go.sum Example (Go)

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/dependency-management/resources/REFERENCE.md

Demonstrates the format of a go.sum file, which Go uses to verify the integrity of module dependencies. It contains checksums and module versions to ensure that builds are reproducible and secure.

```go
github.com/gin-gonic/gin v1.9.0 h1:OjyFBKICoexlu99ctXNR2gg+c5pKrKMuyjgARg9qeY8=
github.com/gin-gonic/gin v1.9.0/go.mod h1:W1Me9+hsUSyj3CePGrd1/QrKJMSJ1Tu/0hFEH89961k=
```

--------------------------------

### Pnpm-lock.yaml Example

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/dependency-management/resources/REFERENCE.md

Presents an example of a pnpm-lock.yaml file, which is used by pnpm to manage project dependencies. It includes the versions, resolved locations, and integrity hashes of all dependencies, ensuring consistent installations.

```yaml
lockfileVersion: 5.4
specifiers:
  express: ^4.18.0
dependencies:
  express: 4.18.2
packages:
  /express/4.18.2:
    resolution: {integrity: sha512-...}
    dependencies:
      body-parser: 1.20.1
```

--------------------------------

### Install DSPy Framework

Source: https://github.com/rand/cc-polymath/blob/main/skills/ml/dspy-setup.md

Installs the DSPy framework using pip or uv. Includes commands for the latest stable release, development version, and optional dependencies for various language model providers and integrations.

```bash
# Latest stable release
pip install dspy-ai

# Or with uv (recommended)
uv add dspy-ai

# Development/latest version
pip install git+https://github.com/stanfordnlp/dspy.git

# Optional dependencies
# For specific LM providers
uv add openai anthropic cohere litellm

# For HuggingFace
uv add huggingface-hub transformers

# For Modal integration
uv add modal

# For RAG and vector search
uv add chromadb weaviate-client qdrant-client

# For evaluation and metrics
uv add datasets evaluate
```

--------------------------------

### Setup AWS CloudHSM Client

Source: https://github.com/rand/cc-polymath/blob/main/skills/cryptography/pki-fundamentals/resources/REFERENCE.md

These commands install and configure the AWS CloudHSM client on an EC2 instance. It involves downloading an RPM package, installing it using yum, configuring the cluster by providing an HSM IP address, and starting the CloudHSM client service.

```bash
# Install CloudHSM client
wget https://s3.amazonaws.com/cloudhsmv2-software/CloudHsmClient/EL7/cloudhsm-client-latest.el7.x86_64.rpm
yum install -y cloudhsm-client-latest.el7.x86_64.rpm

# Configure cluster
/opt/cloudhsm/bin/configure -a <cluster-hsm-ip>

# Start client
systemctl start cloudhsm-client
```

--------------------------------

### Check API Health (Bash)

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Checks the health status of the application by sending an HTTP GET request to the `/health` endpoint on localhost:8080.

```bash
curl http://localhost:8080/health

```

--------------------------------

### Idempotent HTTP Methods: GET, PUT, DELETE Examples

Source: https://github.com/rand/cc-polymath/blob/main/skills/api/rest-api-design.md

Provides examples of idempotent HTTP methods (GET, PUT, DELETE) and explains their behavior. GET requests should always return the same data, PUT requests should result in the same state regardless of how many times they are called, and DELETE requests, while potentially returning different status codes (e.g., 204 vs. 404), achieve the same end state of resource deletion.

```http
GET /users/42       # Always returns same user (if unchanged)

PUT /users/42
{"name": "Alice"}   # Setting name to "Alice" multiple times = same result

DELETE /users/42    # First: 204 No Content
DELETE /users/42    # Second: 404 Not Found (idempotent result)
```

--------------------------------

### Start Step CA Server and Issue Certificate

Source: https://github.com/rand/cc-polymath/blob/main/skills/cryptography/pki-fundamentals/resources/REFERENCE.md

This snippet shows how to start the Step CA server using its configuration file and how to issue a new certificate for a given domain. It assumes the CA has already been initialized.

```bash
# Start CA server
step-ca $(step path)/config/ca.json

# Issue certificate
step ca certificate www.example.com www.example.com.crt www.example.com.key
```

--------------------------------

### AWS CodeArtifact Setup for npm

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/dependency-management/resources/REFERENCE.md

Commands for logging into AWS CodeArtifact and configuring npm to use it as a private registry, including getting the repository endpoint.

```bash
# Login
aws codeartifact login --tool npm --domain my-domain --repository my-repo

# Get endpoint
aws codeartifact get-repository-endpoint \
  --domain my-domain \
  --repository my-repo \
  --format npm
```

```ini
registry=https://my-domain-111122223333.d.codeartifact.us-east-1.amazonaws.com/npm/my-repo/
//my-domain-111122223333.d.codeartifact.us-east-1.amazonaws.com/npm/my-repo/:always-auth=true
```

--------------------------------

### Kubernetes ConfigMap Creation Examples

Source: https://github.com/rand/cc-polymath/blob/main/skills/cloud/kubernetes-deployment/resources/REFERENCE.md

Demonstrates various methods for creating Kubernetes ConfigMaps. This includes defining ConfigMaps directly in YAML with key-value pairs, multi-line strings, JSON, and binary data, as well as creating them from files, directories, and literal values using kubectl.

```yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: app-config
  namespace: default
data:
  # Simple key-value
  ENV: production
  LOG_LEVEL: info

  # Multi-line value
  app.yaml: |
    server:
      port: 8080
      host: 0.0.0.0
    database:
      host: db.example.com
      port: 5432
      name: myapp

  # JSON configuration
  features.json: |
    {
      "feature_a": true,
      "feature_b": false,
      "beta_features": ["feature_c", "feature_d"]
    }
binaryData:
  # Binary data (base64 encoded)
  logo.png: iVBORw0KGgoAAAANSUhEUgAAA...
```

```bash
# From file
kubectl create configmap app-config --from-file=config.yaml

# From directory
kubectl create configmap app-config --from-file=configs/

# From literal values
kubectl create configmap app-config \
  --from-literal=ENV=production \
  --from-literal=LOG_LEVEL=info
```

--------------------------------

### Generated Rust Type Example

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-type-system/resources/examples/codegen-workflow/QUICKSTART.md

Shows an example of a Rust struct generated from a simple signature ('question -> answer'). The generated struct includes fields corresponding to the input and output, along with necessary derives for serialization and debugging.

```rust
# Input signature:
# question -> answer

#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
pub struct QuestionToAnswer {
    pub question: String,
    pub answer: String,
}
```

--------------------------------

### YubiHSM 2 Setup and Connection

Source: https://github.com/rand/cc-polymath/blob/main/skills/cryptography/resources/hsm-integration/REFERENCE.md

Steps to set up the YubiHSM 2, including downloading and installing the SDK, starting the connector service, testing the connection with yubihsm-shell, and changing the default authentication key.

```bash
# 1. Install YubiHSM software
wget https://developers.yubico.com/YubiHSM2/Releases/yubihsm2-sdk-2023-01-ubuntu2004-amd64.tar.gz
tar xzf yubihsm2-sdk-*.tar.gz
sudo dpkg -i yubihsm2-sdk/*.deb

# 2. Start connector service
sudo systemctl start yubihsm-connector
sudo systemctl enable yubihsm-connector

# 3. Test connection
yubihsm-shell --connector http://127.0.0.1:12345

# 4. Change default authentication key
yubihsm> connect
yubihsm> session open 1 password
yubihsm> put authkey 0 0 new-auth-key 1 all all all all password:new-password
yubihsm> session close
```

--------------------------------

### Install Parca (Kubernetes/Binary)

Source: https://github.com/rand/cc-polymath/blob/main/skills/engineering/resources/performance-profiling/REFERENCE.md

Provides instructions for installing Parca, an eBPF-based profiling system. It includes commands for Kubernetes deployments and for downloading and running the binary directly.

```bash
# Kubernetes
kubectl apply -f https://github.com/parca-dev/parca/releases/latest/download/kubernetes-manifest.yaml

# Binary
curl -sL https://github.com/parca-dev/parca/releases/latest/download/parca_Linux_x86_64.tar.gz | tar xvfz -
./parca
```

--------------------------------

### Redis CLI: Get Key Value

Source: https://github.com/rand/cc-polymath/blob/main/skills/rust/pyo3-dspy-rag-pipelines/resources/examples/production-rag/QUICKSTART.md

Retrieves the value associated with a specific key in Redis, such as 'emb:some-key'. Used for inspecting cached data.

```redis
GET emb:some-key
```