SME Opensource package: flexibly customizable and license-free

With Digital Engineering,

IT- and SME-Practice

License-free open source software or paid software?

Companies such as Google, Facebook and Microsoft make massive use of open source software and benefit enormously from it.

So there are good reasons for SMEs to use open source software too.

Flexibility and Independence for your Business: The SME Opensource Package

SME-Opensource Package

Every company has its own starting position and individual working methods and goals, which can also change over time. This should not result in any dependencies.

The KMU-Opensource package is the basis that enables precisely this and accompanies and supports companies in their development.

This includes business planning (ERP), customer management (CRM) and much more.

The Services "Strategy + Planning" and "Timeboxed Innovation" can be used to set this up to suit the company appropriately. 

Reference SRW-Ulm

Use Case

How the company SRW-Ulm introduced the KMU-Opensource package and which modules are currently being used. 

More Info

System Brief


Guiding principle: Freedom and Reliability in the digital Transformation

Free choice of computers

Free choice 
of computer

Our solutions run on computers that users like and chose freely

  • PC,  Notebooks
  • Apple Mac 
  • Chromebook 
  • Smartphones and Tablets

Free choice of operating system (OS)

Free choice 
of operating system

Our solutions run on operating systems that IT and users like to use

  • Windows 
  • Apple MacOS, IOS 
  • Linux 

Free choice of work place and device

Free choice of
operating location

The servers run where management and IT consider it right and secure

  • Own IT environment in the company
  • In the data center (own private cloud)
  • In a public cloud

Architecture, processes, applications

  • Completely license-free solution
  • proxmox virtualization, Docker, Portainer, backup
  • Reverse Proxy (Cloudflare, Caddy, Apache) 
  • Linux Operating System (Debian, Ubuntu)
  • Nextcloud Hub 
  • Private Mailcow E-Mail Server (Option)
  • Integration Cloud (Google, Microsoft) and Data Storage
  • Internet domain management with Cloudflare or Hetzner (not opensource)
  • Virtual workplaces

  • Completely license-free solution
  • LibreOffice (compatible to Microsoft Office)
  • Apps for Nextcloud Hub: Intranet, CRM, Projects, Collaboration, etc.
  • e-Learning (Academy)
  • odoo as one ERP solution for two locations in Kreuzlingen (CH) and Konstanz (DE) incl. Swiss SMB- and German SKR04-chart of accounts (alternativly  SKR03),
    >> Overview
    >> CRM, Website, Newsletter-Marketing, Lead-Management
    >> Project Management, Warehouse, Timesheets
    >> Wages, banking, taxes and receipts in extra solutions

Processes, applications, customizations


Secure - Connected - Expandable

Operation always under your own control at your premises or at the data center 

License-free open source software

Including documentation and access for independent administration

  • Linux: Debian and Ubuntu as lean, extremely reliable operating systems for servers and clients

  • Univention Corporate Server (UCS) for managing IT infrastructure and domains

  • Nextcloud Hub: Secure data storage and collaboration without compliance and security risks

  • Proxmox und TrueNAS: Provide data and applications securely, networked and scalable

  • n8n: Automation, Workflows and Integration

  • AirByte: Data Integration, artificial intelligence
  • Mailcow: private Mailserver 


Collaboration + Corporate Management

Cohesively designed standard apps and applications that users love

License-free open source software

Including documentation and access for independent administration

  • LibreOffice and Collabora Online
    license cost free MS-Office alternative

  • Digital market cultivation 
    Easy to use odoo - solution for CRM, Marketing, Newsletter, Sales, e-Commerce, Service, Projects, Websites and e-learning

  • Business management usind license cost free
    odoo Community Ressource Planning (ERP)

    >> Digital market cultivation

    >> Finance and general ledger

    >> Projects and Production

    >> Portal and Collaboration

    >> Internet of Things (IoT)

    >> odoo-App-Store 

Digital Engineering

Tailor made Orchestration of Solutions

Individual Developments and Addons for special Requirements

Paid-Upgrades on Opensource Software

Including Development Documentation and Installation Instructions

  • Fullstack Lowcode Addons using Appsmith, Baserow, Budibase and n8n

  • Mobile and Portal-Solutions

  • Paid odoo standard apps, odoo Enterprise or Online Edition

  • Agile, cost-efficient individual projects:
    odoo developments, marketplaces, platforms and ecosystems from for more growth

Use Case: Opensource Navigator from

Opensource Navigator
​An SME innovation project by Rainer Tolksdorf
  • Purpose: Proof of the suitability of Free Open Source Software (FOSS) for everyday business and innovation
  • uses the server and operating platform with artificial intelligence (opensource and chatGPT[1]  )
  • Uses the Blog Feature of odoo
  • Hosting as a private cloud solution from GmbH at Hetzner in Germany
  • Was created by Rainer Tolksdorf with license-free opensource software
[1] This functionality is used in the publicly inaccessible parts of odoo and nextcloud.

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Independence through open documentation

  • Projects and solutions are described briefly and transparently so that you or your partners can use and manage the IT systems independently. supports and uses open source software and opensource
  • Strengthening independence
  • Significant advantages such as stability and low costs

More info...