Guardyn

🔒 MAKING PRIVACY THE DEFAULT

Guardyn is an open-source privacy-focused secure communication platform with end-to-end encryption (E2EE), self-hosting support, and quantum-resistant cryptography.

📊 CURRENT STATUS

✅ Backend MVP complete (Rust, Kubernetes, gRPC)

✅ Cryptography implemented: X3DH, Double Ratchet, OpenMLS (IETF RFC 9420)

✅ 8/8 E2E integration tests passing

✅ Production-ready infrastructure: TiKV, ScyllaDB, NATS JetStream

🚧 Mobile client in development (Flutter for iOS/Android)

📋 Planning professional security audit (Q2 2026)

Launch date: November 18, 2025

🎯 WHAT MAKES GUARDYN UNIQUE

100% Open Source

• Both client AND server are Apache 2.0 licensed

• No proprietary components or closed backends

• Fully auditable cryptographic implementation

Self-Hostable

• Deploy on your own infrastructure (Kubernetes, Docker, bare metal)

• No vendor lock-in or forced cloud dependencies

• Full control over your data and metadata

Enterprise-Ready

• LDAP/SAML integration for existing auth systems

• Audit logs and compliance features

• Multi-tenancy support

• On-premise deployment options

Quantum-Resistant

• Hybrid key exchange with Kyber (NIST PQC standard)

• Future-proof against quantum computing attacks

• Cryptographic agility for algorithm upgrades

Reproducible Builds

• Nix flakes for deterministic compilation

• Verify binaries match source code

• Supply chain security with cosign signatures

🛠️ WHAT WE'RE BUILDING

Messaging: Secure 1-on-1 and group conversations with E2EE

Voice/Video: WebRTC calls with SFrame encryption

File Sharing: End-to-end encrypted file transfers

Mobile Apps: Native iOS and Android applications (Flutter)

Desktop Apps: Cross-platform desktop clients (planned)

Self-Hosting: Complete deployment guides and automation tools

💰 HOW YOUR SPONSORSHIP HELPS

Your support directly enables full-time development of Guardyn. As a solo founder, I'm dedicating 100% of my time to building privacy-first communication tools. Here's where your contribution goes:

Full-Time Development ($2,000-3,000/month)

• Sustainable income to work 40+ hours/week on Guardyn

• Without sponsorship, development pauses for contract work

• Enables consistent progress on security-critical features

• Direct impact: More features, faster releases, better security

Security Audits (€30,000-50,000)

• Professional third-party code review (Cure53, Trail of Bits)

• Cryptographic implementation validation

• Penetration testing and vulnerability assessment

• Public audit reports for complete transparency

Infrastructure ($500-1,000/month)

• CI/CD pipelines and automated testing

• Development tools and services (IDEs, profilers, debugging tools)

• Domain, hosting, and cloud costs

• Performance testing environments

Community & Growth

• Documentation and tutorials

• Developer onboarding materials

• Community events and hackathons

• Bug bounty program for security researchers

Development Roadmap

• Mobile client completion (Q1 2026)

• Voice/video call implementation (Q2 2026)

• Desktop applications (Q3 2026)

• Enterprise features (LDAP, SAML, audit logs)

🎯 IMMEDIATE GOAL: $2,000/month by January 2026

This enables sustainable full-time development. Beyond this threshold, every additional dollar accelerates feature development and brings us closer to professional security audits.

Current monthly sponsorship: $0 → Target: $2,000

Your $5, $25, or $100/month makes a real difference!

🎯 ROADMAP & MILESTONES

SUSTAINABILITY MILESTONE: $2,000/month by January 2026

Without sustainable income, development must pause for contract work.

Your sponsorship keeps Guardyn moving forward at full speed.

Q4 2025 (Now - Dec 31)

• ✅ Backend MVP operational

• 🚧 Mobile client basic UI

• 📋 Grant applications submitted

• 📋 Reach $1,000/month sponsorship

Q1 2026 (Jan - Mar)

• Mobile client beta launch (iOS + Android)

• 1,000+ beta testers

• Voice call implementation

• $2,000+ monthly sponsorship (sustainable development)

Q2 2026 (Apr - Jun)

• Professional security audit (pending funding)

• Public beta launch

• 10,000+ active users

• $5,000+ monthly sponsorship

Q3-Q4 2026

• Desktop applications

• Enterprise edition launch

• 50+ enterprise customers

• Series A fundraising preparation

🌍 WHY GUARDYN MATTERS

Privacy is a fundamental human right, but most secure messaging solutions compromise:

❌ Signal: Excellent crypto, but no self-hosting support

❌ WhatsApp: Owned by Meta, collects metadata

❌ Telegram: Groups are NOT end-to-end encrypted

❌ Enterprise tools (Slack, Teams): No true E2EE option

Guardyn solves all of these problems while remaining 100% open source and community-driven.

🤝 OUR COMMITMENT TO TRANSPARENCY

• Public roadmap: All development tracked on GitHub

• Monthly financial reports: Every expense documented on Open Collective

• Open source everything: No closed components, ever

• Community governance: Major decisions involve the community

• Security-first: Regular audits, responsible disclosure, bug bounties

• Honest funding: You see exactly where your money goes

Every dollar is accounted for. Every expense is public. Every decision is transparent.

🔗 LINKS & RESOURCES

GitHub: https://github.com/guardyn/guardyn

Website: https://guardyn.co

Documentation: https://docs.guardyn.co (coming soon)

Blog: https://guardyn.co/blog (coming soon)

💖 JOIN US

Whether you contribute $5/month or $500/month, every sponsor helps us build the future of private communication.

As a solo founder, your support means I can work full-time on making privacy accessible to everyone instead of taking freelance contracts. Every contribution—no matter how small—brings us closer to a world where privacy is the default, not the exception.

Thank you for believing in privacy! 🙏

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Questions? Email us at [email protected] or open a GitHub Discussion.