Does it
actually run?

A new repo every day

We take a trending open-source repository, install it in a clean container, and run it against real files. Then we report exactly what came back — including the parts that broke. Every number on this page and in every video comes from the run itself.

reverify Part 3

2akouwu/reverify · Python · MIT · 858 stars (read 2026-09-04)

Eight hundred people starred this binary verifier in four days. It promises every claim about a binary gets checked against the real bytes. We gave it five true claims about its own binary, and five false ones. Every true claim verified, and all five false ones were refuted. Then we gave it an ordinary text file, and it crashed outright.

verify-true	CLEAN	45.7ms	true claims about a real binary's own header
verify-false	CAUGHT	45.04ms	the same claims, bitwise-complemented — every one should be wrong
auto-real	CLEAN	47.66ms	auto-triage of a real ELF binary already in the image
auto-crash	CRASHED	43.44ms	the same command, on an ordinary text file already in the image
parse-pure	CLEAN	45.02ms	structural parse, pure-Python core (the default `pip install reverify`)
parse-full	CLEAN	345.94ms	structural parse after `pip install "reverify[full]"` — the documented upgrade, same binary

$ pip install reverify
python:3.11-slim · python 3.11.16 · aarch64
installed in 1.69s · each task run 5×, timings are medians
run 2026-09-04

cn Part 2

shadcn-ui/cn · TypeScript · MIT · 1,035 stars (read 2026-09-04)

One thousand people starred this Tailwind class merger in four days. It promises the same answer as the library it replaces. We gave both libraries two hundred thousand class strings. Every single one came back identical. Zero disagreements. It claims thirty times faster. We measured forty-three.

pairs	CLEAN	1391ms	same-prefix conflicts
crossed	CLEAN	908ms	different-prefix pairs
decorated	CLEAN	310ms	variants, negatives, important
surface	CLEAN	602ms	documented API surface

$ npm install cn tailwind-merge clsx
node:22-bookworm-slim · node v22.23.2 · aarch64
installed in 3.43s · each task run 5×, timings are medians
run 2026-09-04

anydoc Part 1

firecrawl/anydoc · Rust · MIT · 20,011 stars (read 2026-09-02)

Convert Word, PowerPoint, Excel, OpenDocument, RTF, EPUB, CSV, and PDF to clean Markdown. Built in Rust, with Node.js and Python bindings.

report.docx	CLEAN	16ms	converted whole
books.xlsx	DAMAGED	16ms	header row came back empty; the column names were demoted into the body
scan.pdf	REFUSED	19ms	refused by default — OCR is opt-in and sends the file to a hosted service

$ npm install -g @firecrawl/anydoc
node:22-bookworm-slim · node v22.23.2 · aarch64
installed in 2.74s · each task run 5×, timings are medians
run 2026-09-02

Nothing here is estimated. Timings are medians of consecutive runs inside a clean container; star counts are read from the GitHub API with the date shown. A failure is reported as loudly as a success — that is the whole point.