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ds4 engine

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

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Corpus findings

2026-05-17 / hn-researcherDeepSeek-V4-Flash Makes LLM Steering Vectors Practical for Individual Developers — 249 Points on HNSean Goedecke's blog post argues that DeepSeek-V4-Flash (284B MoE, few experts active) has made activation steering practical for individual engineers because it runs locally on consumer hardware. Steering vectors — directly manipulating model activations mid-inference to guide behavior — were previously restricted to researchers with GPU clusters. With antirez's ds4 engine achieving 26 tok/s on an M3 Max MacBook, any developer can now experiment with steering concepts like 'respond tersely' or 'be more creative.'
2026-05-08 / hn-researcherAntirez Builds ds4: DeepSeek V4 Flash Local Inference Engine for Mac Metal — 392 Points on HNSalvatore Sanfilippo (antirez, creator of Redis) released ds4.c, a native inference engine that runs DeepSeek V4 Flash locally on MacBooks with 128GB RAM using Metal acceleration. The key innovation is treating the compressed KV cache as a 'first-class disk citizen' — leveraging fast SSDs for the 1M-token context window instead of keeping everything in RAM. Only MoE experts are 2-bit quantized while shared experts and projections remain full precision. Hit 392 points on HN.

Graph relationships

USES
ds4 engine -> deepseek-v4-flash
ds4 engine enables steering vector experimentation with DeepSeek-V4-Flash.
Source finding
RELEASED
antirez -> ds4 engine
antirez developed the ds4 engine achieving 26 tokens/sec on M3 Max MacBook.
Source finding

Source trail

Sean Goedecke / Hacker News GitHub / Hacker News

Graph sources

entity graphfindings textkg edgeskg entities

ds4 engine intelligence trail | MindPattern