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brew

Install ol with Homebrew, apk

Purely functional dialect of Lisp. Version 2.7 via Homebrew; verified from local package data. Also installable with apk: sudo apk add ol.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install ol

local Homebrew formula metadata

overview

Package summary

Purely functional dialect of Lisp

Commands and aliases

  • ol
  • olvm

history

Project history and usage

Otus Lisp, packaged as ol, is a small, cross-platform, purely functional Lisp dialect with Scheme influence. Its documentation describes it as implementing an extended subset of R7RS Scheme with built-in FFI, regular expressions, infix math notation, a REPL, an interpreter/compiler stack, and the olvm virtual machine.

Project history

The yuriy-chumak/ol repository was created on 2014-09-06. The project presents itself as both a language experiment and a practical embeddable runtime, emphasizing a tiny footprint, cross-platform support, and foreign-function access to C, Python, Lua, and operating-system APIs.

Adoption history

Otus Lisp has niche adoption compared with major Scheme and Lisp implementations. Its presence in Homebrew and Alpine packaging, plus its GitHub topic footprint around R7RS, FFI, interpreter, compiler, and virtual-machine work, show a package aimed at language implementers, embedded scripting users, and Lisp collectors rather than a broad application ecosystem.

How it is used

Users run ol or olvm to experiment with the language, execute scripts, embed the runtime, or use the FFI as a compact bridge to native libraries. The package's appeal is strongest where a small Lisp-like runtime and direct foreign calls matter more than a large library ecosystem.

Why package nerds care

For package nerds, ol is interesting because it is not just another Scheme package: it combines a deliberately tiny runtime, R7RS-flavored semantics, and a virtual-machine/compiler design in a Homebrew-installable artifact. It is the kind of package that preserves an independent language implementation in mainstream package indexes.

Timeline

  • 2014-09-06: The yuriy-chumak/ol repository was created on GitHub.
  • 2026-07-01: GitHub repository metadata reported 278 stars, 14 forks, Scheme as the primary language, and active repository pushes in 2026.

Related projects

  • Related references include R7RS Scheme, SRFI libraries, other embeddable Lisp and Scheme runtimes, and the repository's own olvm virtual machine. The package metadata also connects it to Homebrew and Alpine Linux package ecosystems.

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 post-install hook is recorded in formula metadata.
  • Homebrew bottle metadata is available for 6 platform targets.

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

CommandKindExposureNote
olcliglobal executable
olvmcliglobal executable

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 generated2026-07-26
manager version2.7
manager updated
local dataok
upstreamcurrent
latest detected2.7

https://github.com/yuriy-chumak/ol

  • infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package keybrew:ol
Version2.7
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/ol
Homepagehttps://yuriy-chumak.github.io/ol/
Repositoryhttps://github.com/yuriy-chumak/ol
Upstream docshttps://github.com/yuriy-chumak/ol#readme
LicenseLGPL-3.0-or-later OR MIT
Source archivehttps://github.com/yuriy-chumak/ol/archive/refs/tags/2.7.tar.gz
Bottleavailable (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Nameol
Version Scheme0
Revision0
Head VersionHEAD
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • head
  • stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

apk95%

ol 2.6-r0

Purely functional dialect of Lisp

https://yuriy-chumak.github.io/ol/

sudo apk add ol
  • License: LGPL-3.0-or-later OR MIT
  • Architecture: x86_64
  • Source Package: ol
  • 1 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Ol
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: ol from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
apk95%

ol-dev 2.6-r0

Purely functional dialect of Lisp (development files)

https://yuriy-chumak.github.io/ol/

sudo apk add ol-dev
  • License: LGPL-3.0-or-later OR MIT
  • Architecture: x86_64
  • Source Package: ol
  • normalized package name match
  • Matched by: Ol
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: ol-dev from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
apk95%

ol-doc 2.6-r0

Purely functional dialect of Lisp (documentation)

https://yuriy-chumak.github.io/ol/

sudo apk add ol-doc
  • License: LGPL-3.0-or-later OR MIT
  • Architecture: x86_64
  • Source Package: ol
  • normalized package name match
  • Matched by: Ol
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: ol-doc from https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

Same workflow

  • gerbil-schemeShares av.db curated category or tags: cli, ffi, language-runtime, lisp, scheme.
  • newlispShares av.db curated category or tags: cli, language-runtime, lisp.
  • chibi-schemeShares av.db curated category or tags: cli, embeddable, language-runtime, scheme.
  • eclShares av.db curated category or tags: cli, embeddable, language-runtime, lisp.
  • gclShares av.db curated category or tags: cli, language-runtime, lisp.
  • janetShares av.db curated category or tags: cli, embeddable, language-runtime, lisp.

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.

combined/ol.yml

Used sources

  • Geiger risk classifier
  • Nucleus package database
  • av.db category and tag curation
  • cross-ecosystem install command graph
  • curated package history
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment