perf: SIMD-accelerated hex encoding/decoding and image operations#39

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JSKitty merged 11 commits intomasterfrom

simd-optimisations

Feb 3, 2026

Commits on Feb 2, 2026

perf: SIMD-accelerate hex decoding with optimized NEON algorithm

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perf: Add real SSSE3 SIMD to rgb_to_rgba for x86_64

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fix: SIMD stability and cross-platform compatibility fixes

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fix: SSE2 hex decode correctness and add target_feature annotations

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perf: Major SIMD optimizations for image previews and wrapper ID cache

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fix: Wire up preview_metadata persistence and Android miniapp permissions

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Commits on Feb 3, 2026

perf: Compact message storage with binary IDs, interned npubs, and O(log n) lookup

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