There are several ways to use open source software without having to manage a server. Here are a few options:

• Federated Computer: With Federated Computer, you can use open source software without the need to be a system administrator. This platform allows you to access and utilize open source software without the hassle of managing a server.
• Cloud-based services: Many cloud service providers offer managed solutions for open source software. You can leverage these services to run open source applications without the need to manage the underlying infrastructure. Examples of such providers include Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure.
• Software-as-a-Service (SaaS): Some open source software projects offer SaaS versions of their applications. This means that you can use the software through a web browser without having to worry about server management. Examples of popular open source SaaS offerings include WordPress.com for website creation and management, and GitLab.com for version control and collaboration.
• Virtualization: Virtualization technologies such as VirtualBox or VMware allow you to create virtual machines on your local computer. You can install and run open source software within these virtual machines, effectively isolating them from your host operating system and eliminating the need for server management.
• Containerization: Containerization platforms like Docker provide a lightweight and portable way to run open source software. Containers encapsulate the software and its dependencies, making it easier to deploy and manage without the need for a dedicated server.

These are just a few examples of how you can use open source software without managing a server. The specific approach you choose will depend on your requirements and preferences.