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CONTRIBUTING.md

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+# Contributing to terraform-provider-tor
+
+Thank you for your interest in contributing to the terraform-provider-tor
+project! This document provides guidelines for contributing to this
+Terraform/OpenTofu provider that manages Tor bridge infrastructure.
+
+## Development Setup
+
+### Prerequisites
+
+- Go >= 1.23
+- Terraform >= 1.0 or OpenTofu
+- Git
+
+### Building the Provider
+
+```bash
+git clone https://github.com/guardianproject/terraform-provider-tor
+cd terraform-provider-tor
+make build
+```
+
+### Development Commands
+
+```bash
+# Build and install
+go install
+
+# Add dependencies
+go get <package>
+go mod tidy
+
+# Generate documentation
+make generate
+
+# Run linter
+make lint
+
+# Run acceptance tests (creates real resources)
+make testacc
+```
+
+## Project Structure
+
+```
+├── internal/provider/     # Resources and data sources
+├── examples/             # Usage examples
+│   ├── data-sources/     # Data source examples
+│   ├── provider/         # Provider configuration examples
+│   └── resources/        # Resource examples
+├── docs/                 # Generated documentation
+```
+
+## Security Considerations
+
+This provider handles cryptographic keys and sensitive data:
+
+- Never log or expose private keys in plaintext
+- Follow security best practices for key generation
+- Be mindful of state file security in examples and documentation
+- Report security issues responsibly
+
+## Resources
+
+- [Terraform Plugin Development](https://developer.hashicorp.com/terraform/plugin)
+- [Lyrebird](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/lyrebird)
+- [obfs4proxy Documentation](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/obfs4)
+
+## License
+
+This project is licensed under GPL-3.0-or-later. By contributing, you agree to license your contributions under the same license.
+
+## Getting Help
+
+- Open an issue for bugs or feature requests
+- Check existing issues and documentation first
+- Be respectful and constructive in all interactions