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Topics: optimized

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3 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)

Topic: optimized

1.zlib-ng / zlib-ng

zlib replacement with optimizations for "next generation" systems.

compression
library
deflate
inflate
zlib
c
+4 more

C ZLIB2.1K total354 forks

+125 stars

from 1,995 · score 4.84

2.randy408 / libspng

Simple, modern libpng alternative

libpng
c
c99
spng
png
decoding
+8 more

C BSD-2-CLAUSE852 total95 forks

+25 stars

from 826 · score 3.26

3.redspah / xxhash_cpp

Port of the xxhash library to C++17.

hashing
optimized
xxhash
cpp
hash
xxhash-library
+3 more

C++BSD-2-CLAUSE186 total38 forks

+1 stars

from 185 · score 0.69

Order: Attention Score

Most net stars gained in the window first. The score only puts this gain on a log scale, so the order is the order of the gain.

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Ranked by stars gained in the window. The score is the natural log of one plus that gain, so a repository's rank is exactly its star gain's rank.

score = log1p(net stars gained in the trailing T complete UTC days)

A repository is ranked only when its Star History covers every day of the window and its latest Observation is not missing.

The longest window is 180 days. Star History from the Repository Host goes back at most 180 days before a repository's first Observation. A longer window needs more days of Observations first. A repository younger than the window is not ranked in it.

The filters narrow the same eligible repositories. A repository matches the topics when it has any of them. Total stars is the count now. Last push and creation on the Repository Host count back from the start of today (UTC). The counts beside the languages, licenses, and topics include all ranked repositories in the window. A Tag holds the repositories that have it; see Tags.

Repositories enter the index from the Seed Dataset or by gaining stars faster than the published admission threshold, whatever their size. Admission is permanent, so an archived repository can still rank.

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