I'm Daniel S. Reichenbach, building sovereign identity infrastructure from Berlin, Germany.

I'm the founder of Rumba Identity — an open-source, Rust-based alternative to Microsoft Azure AD and Entra ID.

Organizations are trapped:

• Azure AD/Entra lock-in with spiraling per-user costs
• Zero visibility into security and authentication logic
• Data sovereignty impossible with vendor-controlled infrastructure
• No migration path out of Microsoft's ecosystem

Rumba solves this by providing:

• ✅ Azure AD/Entra protocol compatibility (OAuth2, OIDC, SCIM, Graph API)
• ✅ Deploy anywhere (your cloud, on-premise, hybrid)
• ✅ Full source transparency (Rust codebase, open source)
• ✅ Multi-platform support (Windows, Linux, macOS device management)
• ✅ Conditional access with clear, testable policies
• ✅ True digital sovereignty (you own the stack)

Functional Features:

• OAuth 2.0 / OpenID Connect provider
• Microsoft Graph API (114+ endpoints)
• SCIM 2.0 provisioning
• Multi-factor authentication
• Device management
• Conditional access policies
• Admin interface

In Development:

• NSS/PAM modules for Linux
• WebAuthn/FIDO2 support
• LDAP server
• Kerberos KDC

→ Explore Rumba on GitHub → Read about the journey on LinkedIn → Visit rumba.id

I help organizations escape vendor lock-in and build infrastructure they actually control.

🔐 Sovereign Identity Infrastructure

• Azure AD/Entra migration strategies
• Self-hosted identity platforms
• Zero-trust architecture without vendor dependency
• Compliance and audit frameworks

🏗️ Infrastructure Modernization

• Replace Microsoft/Google/AWS dependencies
• Self-hosted alternatives architecture
• Ansible/Terraform automation
• Kubernetes and cloud-native platforms

🎯 Strategic Advisory

• C-level technology independence planning
• Long-term sustainability roadmaps
• Vendor risk assessment
• Digital sovereignty implementation

• Government agencies requiring data residency and sovereignty
• Regulated enterprises (finance, healthcare, defense)
• Mid-market companies seeking cost control and flexibility
• IT consulting firms building sovereignty practices

Interested in working together? Connect on LinkedIn

Building a digital sovereignty practice? Let's collaborate.

What I Offer:

• Early access to Rumba Identity
• Azure/Entra migration frameworks and playbooks
• Co-development on client solutions
• Technical sovereignty expertise
• Partner program (coming Q1 2026)

What You Get:

• Differentiate your consulting practice
• Offer clients real Azure/Entra alternatives
• Build expertise in emerging sovereignty market
• Access to technical community and resources

Ready to partner? DM me on LinkedIn

• 🔨 Building Rumba Identity — shipping device management and conditional access
• 📝 Publishing on LinkedIn — sovereignty insights and technical deep-dives
• 💬 Advising enterprises on Azure AD alternatives and migration paths
• 🌍 Growing community — connecting sovereignty advocates globally
• 🔍 Seeking: Early adopters, consulting partners, contributors

Rust       ████████████████░░░░  Rumba Identity, memory-safe infrastructure
C++        ████████████░░░░░░░░  Protocol implementation, 20+ years experience
Ansible    ██████████░░░░░░░░░░  Infrastructure automation, deployment at scale
Go         ████░░░░░░░░░░░░░░░░  Cloud-native tooling, CLI development
PHP        ██████░░░░░░░░░░░░░░  Web services, legacy system integration

• Identity: Rumba, LLDAP, Authelia, Keycloak
• Infrastructure: Ansible, Terraform, Kubernetes, OpenStack
• Storage: Ceph, MinIO, PostgreSQL, Redis
• Observability: Prometheus, Grafana, Loki
• Security: Vault, SOPS, age encryption

When I'm not building sovereign infrastructure, I work on World of Warcraft emulation — my technical sandbox and proof that I've been wrestling with complex protocols for decades.

wowemulation-dev — Preserving WoW from Vanilla through Mists of Pandaria:

• warcraft-rs — Rust crates for WoW file formats (1.x–5.x)
• cascette-rs — Blizzard NGDP/CASC tools in Rust
• wow-patcher — Client patcher for modern Classic builds

Legacy Contributions:

• MaNGOS and TrinityCore — Founder and early contributor (2007-2012)
• Protocol reverse engineering, network layer optimization
• Cross-platform build systems

This work demonstrates deep protocol expertise, Rust proficiency, and commitment to open source — skills directly applicable to identity infrastructure.

• ansible-role-lldap — Deploy Light LDAP without the headache
• ansible-role-authelia — Authentication server automation
• pklib-rs — Rust implementation of PKWare DCL

All my infrastructure work follows these principles:

• Reproducible: Infrastructure as code, always
• Sovereign: Self-hosted, auditable, controllable
• Modern: Cloud-native patterns, memory-safe languages
• Open: Source available, community-driven

Writing regularly on LinkedIn about digital sovereignty, identity infrastructure, and Microsoft alternatives:

• "Why Conditional Access Shouldn't Require a Degree" — Simplifying policy management
• "The Hidden Costs of Azure AD Lock-In" — TCO analysis and alternatives
• "Building Rumba: Rust for Identity Infrastructure" — Technical architecture decisions
• "Digital Sovereignty in Practice" — Real-world implementation patterns

Follow my LinkedIn for weekly insights

Primary Channels:

• 💼 LinkedIn: linkedin.com/in/danielsreichenbach
• 🐘 Mastodon: @danielsreichenbach@mastodon.world
• 🌍 Website: kogito.network
• 📧 Email: hello@rumba.id (Rumba-related) or contact via LinkedIn

Rumba Channels:

• 🏢 Organization: github.com/rumba-id
• 🌐 Website: rumba.id
• 💬 Community: (Discord coming soon)

• Early adopters — Enterprises/governments piloting sovereign identity
• Contributors — Rust developers passionate about sovereignty
• Consulting partners — IT firms wanting to build Rumba practices
• Feedback — Architecture reviews, feature requests, use cases

• Sovereignty projects — Azure AD migrations, self-hosted infrastructure
• Advisory engagements — Strategic planning for technology independence
• Speaking opportunities — Conferences, webinars, podcasts on sovereignty
• Collaboration — Other consultants, technology partners, integrators

Let's talk: LinkedIn DM

On Digital Sovereignty:

"Organizations deserve to own their infrastructure. Not rent it. Not depend on it. Own it. That means source code transparency, deployment flexibility, and real alternatives. This is what drives my work."

On Open Source:

"The best infrastructure is infrastructure you can understand, audit, and modify. Closed-source identity platforms are security through obscurity. We can do better."

On Building in Public:

"Rumba's development is transparent by design. Every decision, every trade-off, every milestone — shared openly. This is how we build trust in sovereign infrastructure."

Experience:

• 20+ years in software development and infrastructure
• 15+ years protocol reverse engineering and implementation
• 10+ years enterprise IT consulting
• 5+ years focused on digital sovereignty and vendor independence

Key Achievements:

• Built identity solutions for government agencies and regulated enterprises
• Migrated organizations from proprietary to open-source stacks
• Contributed to major open-source projects (MaNGOS, TrinityCore, SUSE)
• Architected multi-tenant cloud platforms and Kubernetes infrastructures

Current Focus: Building Rumba Identity to give organizations a real alternative to Microsoft's identity monopoly.

Topics I Cover:

• Digital sovereignty in identity infrastructure
• Azure AD/Entra migration strategies
• Rust for critical infrastructure
• Open source alternatives to Big Tech
• Building in public: Lessons from Rumba

Interested in having me speak? Contact via LinkedIn

• 🎮 Started programming by modding World of Warcraft (2005)
• 🔐 Contributed to identity and authentication projects before it was cool
• 🦀 Converted to Rust evangelist after one too many segfaults
• 🇩🇪 Based in Berlin, the heart of European digital sovereignty movement
• 🌍 Work with clients globally, from EU governments to Asian enterprises
• 📖 Formerly known as "theluda" in gaming/emulation circles

• Arctic Code Vault Contributor (GitHub)
• Open source contributor to projects with 10,000+ stars combined
• Recognized in sovereign identity and self-hosting communities

Most of my personal projects are MIT or Apache 2.0 licensed. Rumba Identity uses the Functional Source License (FSL), converting to open source (Apache 2.0/MIT) two years after each release.

This ensures sustainability while maintaining transparency.

Building sovereign alternatives to Big Tech, one identity platform at a time.

Let's make digital sovereignty real. 🚀

Quick Links:

• 🏢 Rumba Identity Organization
• 💼 Consulting Inquiries
• 📧 Email: hello@rumba.id
• 🌐 Website: kogito.network

Last updated: December 2025