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Products that do what Zroar – Serialized Roaring Bitmaps in Zig does

zroar is a ground-up implementation of Roaring Bitmaps data structure in Zig. zroar stores both the keys and (array, bitmap) containers in a single flat byte buffer, making the in-memory representation equal to the on-disk or over-the-network representation, eliminating the serialization/deserialization step entirely. The design was originally aimed at systems which keep their posting lists on disk, but zroar performs faster than CRoaring even for purely in-memory ops, due to CPU cache locality. Against CRoaring 5.0's benchmarking suite (ported to Zig), zroar is faster in 339 out of 360…

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    A collection of high-performance data structures for Zig.

    Dec 2025 · github.com

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    Zero-Knowledge Proofs (ZKPs) let an untrusted proved show that computation was executed correctly without revealing the inputs to the verifier. However to prove anything, the computation first has to be expressed as a circuit: a system of polynomial equations (constraints) over a finite field. Circuits are the assembly language of zk and every constraint costs prover (and sometimes verifier) time, so production circuits are aggressively hand-optimized. Over the last months, we have been experimenting with writing formal specifications instead and letting LLMs produce the circuits: as long as…

    Jul 2026 · zk.golf

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    I built an experiment that uses an overfitted transformer and arithmetic coding to compress individual files. Instead of training the model to generalize, I train a 900KB transformer to memorize a single file and predict the next byte. Those predictions are fed into an arithmetic coder to produce the compressed output. On a 100MB NYC taxi CSV, it compresses to about 7MB (~0.5 bits/byte). On a 100MB slice of enwik9, it compresses to about 21MB (~1.68 bits/byte). It's pretty slow right now (roughly 20–30 minutes of training and 45 minutes each for compression and decompression on my…

    Jun 2026

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    Linux filesystem defragger written in Rust and Qt Quick/Kirigami - gbin/defragger

    12d ago · github.com

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    It provides zero-dependency, memory-safe operations for working with torrent files, bencode data, and magnet links.

    2025 · github.com

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    Most ZK proving systems are optimized for server-grade hardware with massive RAM. When scaling to industrial-sized traces (2^20+ rows), they often hit a "Memory Wall" where allocation and data movement become a larger bottleneck than the actual computation. I have been developing Hekate, a ZK engine written in Rust that utilizes a Zero-Copy streaming model and a hybrid tiled evaluator. To test its limits, I ran a head-to-head benchmark against Binius64 on an Apple M3 Max laptop using Keccak-256. The results highlight a significant architectural divergence: At 2^15 rows: Binius64 is faster…

    Jan 2026

  11. 11GA

    Hi, Hacker News! We're excited to announce the release of GraphAr, an open-source file format for archiving and exchanging graph data. The landscape of graph processing systems is fragmented, with various types of systems, including graph databases, graph computation systems, and GNN systems. However, currently, there is no common file format for efficiently storing and exchanging graph data while maintaining its schema and graph semantics. GraphAr is designed to address this issue by providing a simple, lightweight format for storing and exchanging graph data. GraphAr is a flexible and…

    2023 · github.com

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    This is ymawky, a now-dynamic web server written entirely in ARM64 Assembly. I've previously posted about ymawky here: https://news.ycombinator.com/item?id=48080587 In the past month and a half, I've made some pretty major improvements: I've added CGI scripting support, so the server now supports query strings and dynamic content; and I've fully ported ymawky to run on Linux, rather than macOS-only. In addition to GET/PUT/HEAD/DELETE/OPTIONS requests, because of CGI support ymawky also accepts POST requests (only to CGI resources for now). I've also updated…

    Jun 2026 · github.com

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    High performance storage engine for efficient LLM inference and GPU Training.

    15h ago · theopenlake.com

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    Hey everyone! I am excited to share updates on four of my & my teams' open-source projects that take large-scale search systems to the next level: USearch, UForm, UCall, and StringZilla. These projects are designed to work seamlessly together, end-to-end—covering everything from indexing and AI to storage and networking. And yeah, they're optimized for x86 AVX2/512 and Arm NEON/SVE hardware. USearch [1]: Think of it as Meta FAISS on steroids. It's now quicker, supports clustering of any granularity, and offers multi-index lookups. Plus, it's got more native bindings than probably…

    2023 · usearch-images.com

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    DeltaGlider is a CLI/SDK similar to `aws s3` or `boto3`. UPLOAD: It stores the first file in a S3 path as a full-size (reference), but saves next uploaded archives as deltas (tiny binary diffs) with respect to the reference. DOWNLOAD: it reconstructs the original file on the fly, bit-perfect and verified with SHA256. Why Xdelta3? It's a compression-aware and block-level binary diff algorithm. Perfect for representing differences between archives, where small changes shift bytes but most content stays the same. It can efficiently delta compress ZIP/JAR/TAR archives up to 99.9%…

    Nov 2025 · github.com

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    Hi HN, I'd like to share DualMix128, a pseudo-random number generator I developed. It's written in C and achieves very high speed while maintaining strong statistical properties for non-cryptographic use. GitHub (MIT License): https://github.com/the-othernet/DualMix128 Key points: * *Fast:* Benchmarked at ~0.36 ns per 64-bit generation on GCC 11.4 (-O3 -march=native). This was over 2x faster than `xoroshiro128++` (~0.74 ns) and competitive with `wyrand` (~0.36 ns) in the same tests. (Benchmark code/results in repo). * *Robust:* Passes the full TestU01 BigCrush suite…

    2025 · github.com

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    If you've debugged a null pointer exception on a Flipper Zero, you know the pain - the device crashes, you reflash, add print statements, repeat. Memory bugs in embedded C are brutal because they only surface at runtime on the actual hardware. This template lets you write Flipper Zero applications in Zig, giving you: - Memory safety and compile-time error checking - Bounds-checked arrays and explicit error handling - Clean build system that works cross-platform - Integration with UFBT for packaging and deployment - No special IDE required - just Zig, UFBT, and your editor The interesting…

    Oct 2025 · github.com

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    We have been working on tools for safe debloating of software for a few years now at the university. BLAFS is one of our first tools to release for file debloating, a bloat-aware filesystem for container debloating. It detects the files used by the container, and the debloats the container removing the unused files. The debloated containers are fully functional and can run the same workload as the original containers, but with a much smaller size and faster deployment. Check the paper for more details: https://arxiv.org/abs/2305.04641

    2025 · github.com

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