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Tallinn, Medieval Old Town

Hotel Metropol, Roseni 13, Tallinn, Estonia, 10111

Tallinn Hotel Metropol is located in the city centre andclose to the Tallinn Medieval Old Town.

Subcategories (3)

Explore Our Courses

Open Source Collaboration Platforms

21 Hours

Data Sovereignty Fundamentals for Enterprise Leaders

14 Hours

Database Migration: Moving from Proprietary to Open Source - Strategies for migrating Oracle/SQL Server to PostgreSQL

14 Hours

Digital Sovereignty Roadmap: From Strategy to Implementation

21 Hours

EXO: End-to-End Local AI Cluster Deployment

21 Hours

EXO for DevOps: Building Private AI Infrastructure

21 Hours

EXO Security and Governance: Offline Model Management

14 Hours

Gitea: Self-Hosted Git Forge Replacing GitHub and GitLab

14 Hours

GitLab Self-Managed: Complete DevSecOps Platform Without SaaS

21 Hours

Jitsi Meet: Self-Hosted Video Conferencing Replacing Zoom and Microsoft Teams

14 Hours

Container Sovereignty: Kubernetes Without Cloud Dependencies

21 Hours

Secure Local Agentic AI: On-Prem Ollama Development for Regulated Industries

21 Hours

Matrix + Element: Decentralized Enterprise Chat to Replace Slack and Teams

14 Hours

Multi-Cloud Sovereignty: Avoiding Single-Vendor Lock-in

14 Hours

NixOS: Declarative Linux for Reproducible Sovereign Infrastructure

21 Hours

Open Source Office Suites for Corporate Environments

14 Hours

Ollama: Self-Hosted Large Language Models Replacing OpenAI and Claude APIs

14 Hours

Open Network Operating Systems: SONiC and ONL

14 Hours

Private Cloud Infrastructure: OpenStack for Enterprises

21 Hours

Open Source Project Management: Alternatives to Jira and Asana

14 Hours

Software-Defined Networking with Open Source Tools

35 Hours

Building a Self-Managed Enterprise Network with Open-Source Routers, Switching, and Wi-Fi

21 Hours

Sovereign AI for Regulated Organizations: Controlling Data, Models and Inference Environments

7 Hours

Sovereign Data Stack: Building an End-to-End Self-Hosted Digital Infrastructure

35 Hours

Stalwart Mail Server: Self-Hosted Email and Collaboration

21 Hours

Synapse and Element: Self-Hosted Chat Replacing Slack and Microsoft Teams

14 Hours

Terraform: Self-Hosted Infrastructure as Code Without Cloud Lock-in

14 Hours

Uptime Kuma: Self-Hosted Monitoring Replacing Datadog and Pingdom

7 Hours

Self-Hosted Video Conferencing: Jitsi and BigBlueButton

14 Hours

Enterprise VPN: Self-Hosted WireGuard and OpenVPN

21 Hours

OpenVPN and WireGuard: Self-Hosted VPN Replacing ExpressVPN and NordLayer

14 Hours

Wazuh: Open-Source Security Monitoring Replacing Splunk and Sentinel

21 Hours

Woodpecker CI: Lightweight Self-Hosted Pipelines for Gitea and Forgejo

14 Hours

Zammad: Open-Source Helpdesk and Ticketing Replacing Zendesk and Freshdesk

14 Hours

Zero Trust Architecture with Open Source Components

35 Hours

Zimbra Collaboration: Full Email, Calendar, and Contacts on Your Servers

21 Hours

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Upcoming Courses

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