macOS
Homebrewverified · 100%
brew install lsrlocal Homebrew formula metadata
brew / rank 9086
Install lsr with Homebrew, Nix
Ls but with io_uring. Version 1.0.0 via Homebrew; verified 2026-07-05. Also installable with nix: nix profile install nixpkgs#lsr.
install
Additional install commands
Linux
Nixverified · 92%
nix profile install nixpkgs#lsrnixpkgs package indexes · pkgs/by-name/ls/lsr/package.nix · source: api.github.com
overview
Package summary
Ls but with io_uring
Project links
Commands and aliases
- lsr
history
Project history and usage
lsr is a Zig implementation of `ls(1)` that uses io_uring where possible to reduce syscall overhead. The official README calls it `ls(1)` but with io_uring, and the author's write-up describes it as an exercise in syscall golf.
Project history
The project was publicly introduced by Tim Culverhouse in a 2025-05-06 write-up. The author explains that lsr uses the ourio library and io_uring to batch I/O work such as opening directories, reading local time, user and group data, and performing stat-like calls.
The official repository is hosted on Tangled. Its README documents Zig 0.14.0 build/install instructions, a manpage install target, and common `ls`-style display options including long output, columns, sorting, colors, hyperlinks, icons, and directory grouping.
Adoption history
lsr is young and specialized, but it already reached Homebrew and Nix in the supplied package facts. Its adoption is primarily among users interested in Linux filesystem performance, Zig tooling, and modern `ls` alternatives.
How it is used
Typical usage mirrors `ls`: run `lsr [options] [path]`. The README documents options for one-entry-per-line output, hidden files, columns, color mode, directories-first grouping, OSC 8 hyperlinks, icons, long output, reverse sort, and modification-time sorting.
The author's benchmarks compare lsr against GNU ls, eza, lsd, uutils ls, and BusyBox ls on directories from 10 to 10,000 files. The README notes that lsr works on macOS and BSD too, but the io_uring syscall batching benefits are Linux-specific.
Why package nerds care
lsr is package-nerd interesting because it revisits the most ordinary Unix command with a very modern Linux I/O interface. It is not a general replacement for mature `ls` implementations yet, but it is a compact demonstration of where syscall batching can matter in command-line filesystem tools.
Timeline
- 2025: Author publishes the lsr write-up and benchmarks.
- 2025: Tangled repository documents version 0.1.0 benchmark data.
- 2026: Supplied package facts list Homebrew and Nix packaging.
Related projects
- Related tools include GNU coreutils ls, BusyBox ls, eza, lsd, uutils ls, the Zig language, io_uring, and the author's ourio library.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
lsr | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version1.0.0
manager updated2026-07-05
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:lsr |
|---|---|
| Version | 1.0.0 |
| Package manager | Homebrew |
| Homepage | https://tangled.org/rockorager.dev/lsr |
| Last updated | 2026-07-05T13:15:03+09:00 |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Nix95%
lsr
nix profile install nixpkgs#lsr- normalized package name match
- Matched by: Lsr
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation