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OPEN SOURCE & DIGITAL INDEPENDENCE

Your Data, Your Control

Digital independence is not a luxury – it's a strategic necessity. We develop solutions based on proven open-source technologies that remain fully under your control.

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The Problem: Trapped in a Golden Cage

At first, the SaaS solution was convenient. Quick implementation, no server maintenance, everything from one source. But three years later, reality looks different.

Vendor Lock-in & Cost Trap

SaaS providers raise prices by an average of 11% annually. Switching costs of 150-200% of annual fees make changing vendors virtually impossible—while new terms are imposed unilaterally.

Data Sovereignty & Loss of Control

92% of Western data is stored on US servers, subject to foreign legal systems like the CLOUD Act. Companies lose control over their most valuable assets—and risk GDPR violations.

Black Box Without Customization

Proprietary software provides no access to source code. Customization is severely limited, features are dictated by the vendor and can be discontinued at any time—your workflows must adapt, not the other way around.

Your digital infrastructure doesn't really belong to you. You're just renting it – on terms that can change at any time.

What You Concretely Gain

Self-Hosted Infrastructure

What it is

Your applications run on servers you control – whether in your own data center, with a European hoster, or in a private cloud.

The Benefit

No third party has access to your systems. No unannounced updates. No dependency on the availability of external services.

Your Value

You decide when updates are applied. You determine where your data is stored. You maintain full control over your business processes – even if a provider disappears from the market.

Open Data Formats and Standards

What it is

Your data is stored in standardized, documented formats that are not controlled by any single vendor.

The Benefit

You can export, migrate, or link your data with other systems at any time – without conversion problems or data loss.

Your Value

If you want to switch to a better system in five years, you simply take your complete data history with you. No negotiations, no export fees, no nasty surprises.

Transparent Source Code

What it is

The complete source code of your application is viewable, auditable, and adaptable if needed.

The Benefit

You know exactly what the software does. Security vulnerabilities can be independently audited. Modifications are possible without manufacturer approval.

Your Value

If your department needs a special feature, you can develop it yourself or have it developed – without waiting for a vendor's roadmap.

Long-term Maintainability

What it is

We exclusively use established technologies with active communities and long-term support.

The Benefit

No proprietary frameworks that stop being maintained after three years. No niche technologies where you can't find developers.

Your Value

Even if SEADEV didn't exist tomorrow, you'd easily find other developers who can maintain and develop your system. That's real independence.

The SEADEV Philosophy: Partnership Instead of Dependency

Solid technology needs solid craft. Here's how we put open source to work for you.

Installation & Initial Setup
Configuration & Optimization
Customization to Your Requirements
Further Development & New Features
Migration from Proprietary Solutions
Ongoing Support & Maintenance

Every technology we use is open source, actively maintained, and has a community of several thousand active users. This is how we ensure your system remains maintainable even in ten years.

Who Is This Right For?

Open source fits every stage of growth — from solo founders to mid-sized enterprises. The difference: your IT costs no longer scale automatically with your headcount.

Smart Start Without Subscription Traps

Solo entrepreneurs and micro-businesses often overpay for SaaS tools they barely use. With self-hosted alternatives for cloud storage, invoicing, and time tracking, you can cut your monthly software costs by up to 85% — without compromising on functionality.

Scale Without Per-Seat Penalties

Per-user pricing punishes growth: at 50 employees, basic SaaS tools alone cost around EUR 2,900 per month — and prices rise 8-11% annually. Open source has no user limits. Your team grows, your licensing costs stay flat.

Full Control, Full Compliance

GDPR, NIS2, and DORA demand verifiable data sovereignty and auditability. With self-hosted infrastructure, you meet regulatory requirements without depending on third-party vendors — while saving EUR 40,000 to 70,000 per year compared to equivalent SaaS solutions.

Ready for Digital Independence?

Digital independence begins with a conversation. We analyze your current situation, identify dependencies, and show you concrete paths to more sovereignty.

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Use Cases

Open source is more than a philosophy — it's a toolkit. Here are some examples of how we combine open-source tools for our clients.

BookStack
OllamaOllama
LangChainLangChain

AI Knowledge Base

BookStack as a documentation platform, enhanced with an AI chatbot using Ollama and LangChain. Your employees find answers in seconds — without sending data to external APIs.

NextcloudNextcloud
WindmillWindmill

Collaboration with Automation

Nextcloud as a central collaboration platform, connected with Windmill for automated workflows. Files, calendars and tasks — with processes that run themselves.

KeycloakKeycloak
NestJSNestJS

Central User Management & SSO

Keycloak as an identity provider for single sign-on across all enterprise applications. One login for everything — with full control over roles and permissions.

GitLabGitLab
DockerDocker
KubernetesKubernetes

CI/CD & Container Deployment

GitLab for version control and CI/CD pipelines, Docker for containerization and Kubernetes for orchestration. From code commit to production deployment — fully automated.

StrapiStrapi
NuxtNuxt
PostgreSQLPostgreSQL

Headless CMS & Website

Strapi as a flexible content management system, Nuxt for performant frontends and PostgreSQL as a robust database. Your website — fast, scalable and easy to maintain.

PrometheusPrometheus
SentrySentry
OpenTelemetryOpenTelemetry

Monitoring & Alerting

Prometheus for metrics, Sentry for error tracking and OpenTelemetry for distributed tracing. You see problems before your users notice them.