{"id":18107,"date":"2026-05-19T13:33:50","date_gmt":"2026-05-19T11:33:50","guid":{"rendered":"https:\/\/www.cloudandheat.com\/?p=18107"},"modified":"2026-05-20T09:06:26","modified_gmt":"2026-05-20T07:06:26","slug":"five-years-of-yaook-as-an-open-source-project-some-reflections-on-the-importance-of-community-driven-software-development","status":"publish","type":"post","link":"https:\/\/www.cloudandheat.com\/en\/fuenf-jahre-yaook-als-open-source-projekt-einige-ueberlegungen-zur-bedeutung-der-community-getriebenen-softwareentwicklung\/","title":{"rendered":"Five years of Yaook as an open source project: Some reflections on the importance of community-driven software development"},"content":{"rendered":"
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Five years ago, STACKIT and Cloud&Heat Technologies, Yaook<\/a>, a lifecycle management tool for OpenStack, as an open source project. In the months leading up to this decision, both companies had worked intensively on the development of this tool, which significantly improved the operation of OpenStack-based cloud infrastructures.<\/p>

At the time, this was not a controversial decision internally. Cloud&Heat has always been strongly orientated towards open source values and has intensively used and contributed to projects such as OpenStack. Sharing Yaook with the community was therefore the logical step. Personally, however, I remember a strange feeling. I had just joined Cloud&Heat's business development team, and although I was aware of the much-discussed benefits of open source, I had no real experience in this area. It was hard for me to come to terms with the idea that so much knowledge, time and effort should be given away for free to anyone who wanted it, including potential competitors.<\/p>

Five years later, any unease has disappeared. Anniversaries are always a good occasion to pause for a moment to look back and reflect on the impact of events and how they often reach far beyond their original context. The following reflections attempt to do just that.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Open source is above all a cooperative and participative model<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Open source is often described as a way to distribute software freely, but it is much more than that. The key is how it transforms the process of creating software components (which often have a significant impact on our society, economy and democracy) into an open source system. Participatory model<\/strong> transformed. Instead of development taking place behind closed doors within a single organisation, open source invites developers and users to contribute ideas, identify bugs and improve functionality in a collaborative and transparent environment.<\/p>

This collective approach expands opportunities to participate in software development, regardless of how many resources an organisation can dedicate to this purpose. For example, small and medium-sized organisations such as Cloud&Heat, which would otherwise struggle to free up the resources to develop high-impact software projects on their own, can tackle this task together and make important contributions that help shape the future of digital technologies. Open source fosters communities based on shared responsibility and knowledge sharing, avoiding duplication of effort and lowering barriers to entry for new developers. It is hard to say exactly what Yaook would look like if it had not been released as open source, but it is safe to say that it would not be as advanced as it is today in terms of functionality, documentation, maintenance and the number of productive Yaook-based cloud infrastructures.<\/p>

The result is a dramatic paradigm shift: instead of innovative software being produced primarily by large companies with extensive research and development budgets, it is now possible for a large number of market players and individuals play a decisive role in shaping the technology landscape<\/strong> play. In this sense, open source is not just about access to code. It's about rethinking who determines our shared digital future. In a world where software is ubiquitous, impacting virtually every industry and every aspect of citizens' lives, it is crucial that development capacity is not concentrated in the hands of a few organisations.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Why governance is important: Neutrality is not optional<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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With the growth of open source projects, another question inevitably arises: Who governs them? Over time, we have come to believe that the long-term sustainability of open source projects depends on neutral governance structures. If projects are released as open source but remain too closely tied to individual organisations, they run the risk of being constrained by that organisation's priorities, timelines or business cycles. For this reason, Cloud&Heat, together with six other companies, decided in 2022 to found the non-profit organisation ALASCA e.V.,<\/a> and bring Yaook under its umbrella. The idea was born out of the need to find a stable governance model that is not solely driven by the priorities of individual companies and to create a clear separation between Yaook and the surrounding businesses. The growth of ALASCA since its inception (in terms of number of projects, membership and overall community) clearly validates this decision, but that's another topic, perhaps for ALASCA's fifth anniversary next year.<\/p>

One could argue that neutral foundations are the only good alternative to realise the full potential of open source software<\/strong>. While open source is often presented as a path to digital sovereignty and independence, true independence in software is unattainable. Every software component (and therefore every product or service based on it) is dependent on something, be it the community of maintainers, the upstream projects it integrates or the standards it relies on, to name just a few examples. The real question is not whether dependencies exist, but where they lie.<\/p>

Open source is clearly superior to proprietary software when it comes to promoting independence. Proprietary technologies are black boxes<\/strong> and concentrate power in the hands of individual vendors, leaving users vulnerable to unilateral technological or commercial decisions such as new deployment models or changes in licensing and pricing. In contrast, open source software increases transparency and allows dependencies to be distributed across a broader ecosystem, avoiding single points of control. To take full advantage of these benefits, it is important that software projects are actually maintained, developed and used by multiple organisations. This requires a Ecosystem required in which no contributor is treated as a guest on the premises of a hosting company<\/strong>, foundations are best placed to build such ecosystems. The foundation-led approach encourages broader participation and shared ownership and ensures that decisions, processes and code are documented consistently and openly. The result is more transparency and ultimately fewer (or less risky) dependencies for software users.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Open source as the basis for better products and services<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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In the communities in which Cloud&Heat is active (e.g. ALASCA, Sovereign Cloud Stack or OpenInfra), there is a consensus that open source is the basis for better products and services. Outside of these open source enthusiast communities, however, there is sometimes a misconception that open source and commercial quality are at odds with each other. Our experience shows the opposite.<\/p>

Cloud&Heat does not base its products on open source simply because it is convinced that this is the right way to go. Fortunately, corporate ethics and business strategy are well aligned on this issue. In addition to the fact that open source allows companies to pool resources for development purposes, it also offers other important advantages. The collaborative model associated with open source development accelerates innovation<\/strong>, as different perspectives lead to more robust and adaptable solutions. It also increases reliability and safety<\/strong>, as many contributors with different skills and perspectives can review and refine the code. So it's not just about having more developers working on a project, but also about having access to broader and more diverse knowledge, experience and perspectives.<\/p>

The quality of Cloud&Heat's products and services today is based on our extensive experience in building and operating cloud infrastructures, but is also linked to the fact that the foundations of our offering are open, tested by the community and continuously improved. Of course, this applies not only to Yaook, but to our entire technology stack, including software components such as OpenStack, Kubernetes, Proxmox or Tarook<\/a>. Open development creates feedback loops that are difficult to replicate in closed environments: DevOps engineers with different experiences, diverse customers and specific product offerings recognise problems earlier, continuously test decisions beyond what would be possible in a closed development approach, and share knowledge to find solutions and implement improvements faster. The end result is a more resilient software component whose benefits extend to the products and services built upon it.<\/p>

To the relief of my five years younger self, using open source as a technological foundation doesn't mean you have to give up the option, A sustainable business model<\/strong> build. The case of Cloud&Heat (as well as many other companies in the communities we work with) shows that revenue can be generated through value-added offerings such as managed cloud services, consulting, integration work, training or operational support. Many organisations need this support because they lack the knowledge, skills or resources to manage the build and operation of a cloud infrastructure themselves, or because they choose to focus their attention on other activities that bring real value to them or their customers. The added business value<\/strong> of companies that work with open source results from in-depth expertise, high-quality service and convenience<\/strong> (which customers are willing to pay for) and not from restricting access to the code. As a business model, it may have its challenges, but so does every other model, even those that claim not to have any.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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The importance of collaboration across open source projects and communities<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Collaboration within individual open source projects is essential, but it is not enough. Especially in areas such as the cloud, which are characterised by the existence numerous complex and interdependent technologies<\/strong> meaningful contributions also depend on long-term collaboration across projects and communities. The type of collaboration required goes far beyond occasional interactions at conferences and mutual engagement on social media. While these activities are important for building networks and raising awareness of the open source ecosystem, they rarely lead to tangible results on their own. Real impact is created when communities harmonise technical goals<\/strong>, develop standards together and actively integrate their work. Achieving this level of harmonisation is no small feat: it requires a great deal of coordination and a willingness to adapt roadmaps in line with progress. This in turn further increases the complexity of management in already complex environments.<\/p>

At this point, complexity appears less of a challenge and more of a design principle. Without this level, however, the risk of redundant, inconsistent or incompatible technologies becomes too great. With the necessary willingness and the right attitude, successful cross-community cooperation at a technical level is possible. A good example is the story of Yaook (and the associated ecosystem) and the Sovereign Cloud Stack (SCS)<\/a>-standards. Rather than remaining at a superficial level, these communities have worked together to ensure that the operational experience of the Yaook community informs the development of SCS standards as Yaook evolves to support the requirements of SCS-compliant cloud environments. Shared goals to promote digital sovereignty through open technologies and standards have thus translated into concrete technical outcomes. Organisations such as Cloud&Heat have played an active role in bridging these communities, not only supporting technical alignment, but also implementing and validating technologies and standards in real-world deployments. This shows that open source ecosystems can evolve from parallel endeavours to mutually reinforcing and synergistic activities and how companies can contribute and benefit from this.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Summary and outlook<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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On the occasion of Yaook's fifth anniversary as an open source project, this article reflects on what makes open source so effective beyond mere access to code. At its best, open source is not just a development model, but a way of developing technology that is transparent, participatory and collectively driven. When it is hosted by neutral foundations and strengthened by the collaboration of different communities, it not only creates better software, but also the opportunity to offer more resilient products and services. In the field of cloud technologies ultimately enables open source to build infrastructures that reflect democratic values<\/strong>, instead of reinforcing concentrated control and dependencies.<\/p>

The development of Yaook shows how these principles are gaining significance in practice. Looking to the future, the success of open source cloud infrastructures will continue to depend on deepening cross-project collaboration, maintaining truly neutral and inclusive governance and counteracting potential fragmentation and isolation of components. These are key elements in favour of a digitally sovereign Europe in which critical digital infrastructures remain transparent and interoperable<\/strong> and are not dependent on a small number of global providers. Well-managed open source software creates the conditions for European organisations, public institutions and companies to build and operate infrastructures that are aligned with their own economic and societal priorities.<\/p>

Cloud&Heat remains committed to contributing to these goals. Not only because it is the right thing to do and in line with our corporate values, but also because it is the foundation of our business model. Here's to another five years of Yaook!<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Vor f\u00fcnf Jahren beschlossen STACKIT und Cloud&Heat Technologies, Yaook, ein Lifecycle-Management-Tool f\u00fcr OpenStack, als Open-Source-Projekt zu ver\u00f6ffentlichen. In den Monaten vor dieser Entscheidung hatten beide Unternehmen intensiv an der Entwicklung…<\/p>","protected":false},"author":8,"featured_media":18166,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"10940,5203,12149,8979,5373,15466","_relevanssi_noindex_reason":"","inline_featured_image":false,"footnotes":""},"categories":[83,84,1,111,81,80],"tags":[117,116,118,115],"class_list":["post-18107","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-services","category-digitale-infrastrukturen","category-iaas","category-onpremise","category-openstack","category-yaook","tag-community","tag-open-source","tag-sovereign-cloud-stack","tag-yaook"],"acf":[],"yoast_head":"\nF\u00fcnf 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