Self-hosting has evolved remarkably in recent years. Docker Compose, one-click installers, and container-focused operating systems allow deploying dozens of applications in minutes. However, certain self-managed workloads require capabilities that containers alone cannot provide: block-level snapshots, full GPU passthrough, advanced networking, PCI device assignment, kernel customization, and filesystem flexibility. This is where Proxmox VE stands out, combining a Type 1 hypervisor with a lightweight yet powerful virtualization platform. For businesses looking to consolidate their infrastructure with high levels of control, having a technology partner like Q2BSTUDIO —specialists in custom software development, cloud integration, and cybersecurity— helps maximize the performance of each virtual machine on Proxmox. Below, we explore six self-hosted applications that greatly benefit from running in a Proxmox VM rather than a container.
1. Nextcloud (or ownCloud) – Sync and collaborationNextcloud is the leading self-hosted collaboration platform. Although it can be installed in Docker, the VM version on Proxmox offers critical advantages: consistent filesystem snapshots for uninterrupted backups, advanced networking (VLAN, bridge) to isolate sync traffic and remote access, and the ability to assign independent disks to the database and user data. Furthermore, if you want to integrate usage analytics with Power BI, a VM allows installing BI connectors and agents without interfering with other services. Companies needing custom software on Nextcloud —such as e-signature modules or approval workflows— find in Proxmox the ideal environment to develop and test without compromising stability.
2. Home Assistant – Smart home automationHome Assistant has become the standard for self-hosted home automation. Running it in a Proxmox VM enables GPU passthrough to accelerate voice recognition and computer vision, something containers handle with difficulty. Kernel customization also allows including proprietary hardware drivers and advanced network modules. In this context, integrating AI agents for natural language processing or behavior prediction is cleaner inside a virtual machine. Q2BSTUDIO helps organizations design and deploy these intelligent agents on Proxmox infrastructure, combining artificial intelligence with process automation for residential and commercial environments.
3. Plex Media Server – Multimedia streaming with GPUPlex is the go-to solution for managing and streaming personal media. For smooth playback on multiple devices, hardware transcoding requires direct GPU access. While containers handle GPU passthrough with complexity and often instability, a Proxmox VM can assign a full GPU (GPU passthrough) or partition it via SR-IOV, ensuring optimal performance. Snapshots allow complete backups of the library and configuration without stopping the service. Companies that want to develop custom software for internal content distribution —integrating audience analytics with Power BI or cloud storage on AWS/Azure— find a solid foundation in Proxmox.
4. GitLab – DevOps and version controlGitLab is a complete DevOps lifecycle platform. Running it in a container may suffice for small projects, but a corporate environment requires block-level snapshots to protect repositories and databases, advanced networking to isolate runners and balance load, and kernel customization to optimize pipeline performance. Proxmox also allows mounting ZFS filesystems with compression and deduplication, reducing storage consumption. Integration with cloud services like AWS or Azure for external backups is straightforward, and Q2BSTUDIO offers consulting on cloud AWS/Azure to sync repositories with hybrid environments. Code security is critical; thus, applying cybersecurity policies —such as per-VM firewalls, network segmentation, and access auditing— makes Proxmox the natural choice for self-hosted GitLab.
5. OpenVPN or WireGuard – Advanced virtual private networkSelf-hosted VPN servers are essential for secure remote access to corporate networks. WireGuard and OpenVPN, when deployed on a Proxmox VM, can leverage PCI device assignment for dedicated network cards, advanced networking with multiple public IPs and custom routing, as well as snapshots to quickly recover configuration after errors. Cloning the VM facilitates creating redundant tunnels. In environments where cybersecurity is a priority, Q2BSTUDIO helps design segmented network architectures with perimeter firewalls and intrusion detection systems, all on top of Proxmox. Additionally, integrating AI agents for anomalous traffic monitoring turns the VPN into an active defense element.
6. PostgreSQL (or MariaDB) – Performance and consistencyRelational databases are the heart of many self-hosted applications. Running PostgreSQL on a Proxmox VM provides advantages unattainable in containers: consistent snapshots with QEMU Guest Agent, fine-tuning of I/O scheduler and kernel, dedicated memory allocation without overcommit, and filesystems like XFS or ZFS with adaptive caching. Replication and backups are managed at the block level, speeding up disaster recovery. If the database powers a Business Intelligence system with Power BI —such as sales or logistics dashboards— a VM allows installing ODBC drivers, native connectors, and ETL tools without conflicts. Companies requiring high-performance custom software on PostgreSQL, like bespoke ERPs or CRMs, find a solid pillar in the Proxmox + database combination. Q2BSTUDIO designs and implements these solutions with deep knowledge of cloud, AI, and automation.
In summary, while containers excel for lightweight microservices, self-hosted applications demanding full control over hardware, storage, and networking greatly benefit from virtual machines on Proxmox. The flexibility to combine GPU passthrough, snapshots, advanced networking, and kernel customization makes Proxmox the preferred platform for system administrators and businesses seeking scalability and security. With the support of a team like Q2BSTUDIO —specialists in custom software development, artificial intelligence, cybersecurity, and AWS/Azure cloud services— any organization can maximize the potential of its self-hosted infrastructure while maintaining full control of its data and processes.
