Harp Nextcloud -

In the evolving landscape of self-hosted microservices, HaRP (High-performance AppAPI Reverse Proxy) represents a fundamental shift in how Nextcloud interacts with external applications. Introduced for Nextcloud 32+, HaRP replaces the legacy Docker Socket Proxy (DSP) system, offering a more robust, scalable way to integrate specialized tools—like AI assistants or real-time collaboration editors—directly into your Hub. The Core Philosophy of HaRP

2. Air-Gapped and Remote Offices

Offices in rural areas with poor internet often have one "local cache." Harp detects LAN peers automatically. If Office A downloads a file from the cloud, Office B can pull it from Office A’s LAN at 1Gbps, not the WAN at 10Mbps. harp nextcloud

HARPs are novel computing architectures that combine the benefits of heterogeneous processing, reconfigurable computing, and hybrid memory systems. These systems enable efficient processing of diverse workloads, such as data analytics, machine learning, and scientific simulations. By incorporating Field-Programmable Gate Arrays (FPGAs), Graphics Processing Units (GPUs), and Central Processing Units (CPUs), HARPs offer unparalleled flexibility and performance. In the evolving landscape of self-hosted microservices, HaRP

The date stamp was eight years ago. They had finished their work, fixed a broken piece of cultural history, and then… silence. Not a full CRDT: File contents are not

8. Conclusion and Future Work

We presented Harp Nextcloud, a practical extension that brings decentralized metadata reconciliation and verifiable integrity to the Nextcloud ecosystem. Our prototype demonstrates significant reductions in sync conflicts and recovery time, with modest overhead. Future work includes:

7.2 Limitations

• Not a full CRDT: File contents are not merged intelligently (e.g., for text files). Future work can integrate differential sync.
• No garbage collection: Old chain entries remain indefinitely; we plan to add checkpointing and pruning after N versions.