Curated deep-dives into system architectures and practical engineering
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Browser Agents
Under the Hood of Browser-use (100k+ Stars): DOM Tree Distillation, Vision Grounding, and Production Web Agents
Why do traditional Selenium and Playwright scripts constantly break against modern web frontends? We dissect the architecture of Browser-use, the breakout open-source project with over 100k GitHub stars: DOM tree pruning, Set-of-Mark (SoM) visual coordinate grounding, state machine resilience, and end-to-end production recipes.
Frontier technical notes and engineering practices
Inference Architecture
Inside DeepSeek's Trillion-Token Engine: DeepInfer and deepseek-recipe Architecture from Silicon to Protocol Layer
From physical silicon foundations and kernel matrices to 1:1 PD disaggregation topologies, DSpark dynamic speculative decoding, SWA bounded replay, deepseek-recipe protocol layers, and $38/GPU/h unit economics: a complete architectural dissection of DeepSeek's production inference stack.
Production InfiniBand Deployment, Cluster Operations, and NCCL Tuning: OFED Drivers, OpenSM HA, ibdiagnet Fabric Auditing, and GPUDirect RDMA
Production InfiniBand cluster operations: MLNX_OFED driver stacks, OpenSM high availability, ibdiagnet fabric health auditing, and NCCL GPUDirect RDMA tuning.
Linux Kernel Networking Subsystem in Depth: From NIC Drivers, NAPI, and Ring Buffers to eBPF XDP Wire-Speed Forwarding
Linux kernel networking internals: NIC RX Ring Buffers, DMA transfers, NAPI hybrid polling, sk_buff lifecycle, RSS multi-queue affinity, and eBPF XDP wire filtering.
Engineering profile, technical creed, and research vectors
ARCHITECT DOSSIER // BUPT CS
ifnodoraemon (Nobita)
LLM Systems & Autonomous Agent Architect
This is my technical dossier documenting deep-dives into LLM foundation architectures, distributed serving post-mortems, and production agentic runtimes. Graduated with a B.S. in Computer Science from Beijing University of Posts and Telecommunications (BUPT), focusing on trillion-parameter inference serving, KV Cache memory topology modeling, and production-grade autonomous agent loops.
“Code must be verifiable, data must have provenance, and topology must be backed by mathematics. Moving beyond shallow prompts into rock-solid AI systems engineering.”