install

Additional install commands

macOS

Homebrewverified · 100%

brew install clac

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install clac

MacPorts ports tree · math/clac/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#clac

nixpkgs package indexes · pkgs/by-name/cl/clac/package.nix · source: api.github.com

overview

Package summary

Command-line, stack-based calculator with postfix notation

Project links

Commands and aliases

clac

history

Project history and usage

Clac is a command-line, stack-based calculator using postfix notation with the stack visible as calculations happen.

Project history

The official repository was created in 2017 and its first GitHub release was named Initial release. The README explains the project motivation: the author liked Forth and other concatenative languages, used `dc` heavily, and wanted a calculator UI with an always-visible stack and realtime updates.

Adoption history

The batch input records Clac in Homebrew, MacPorts, and Nix. The official README directs users to GitHub releases and a distribution-packages wiki page, indicating upstream expected both direct release installs and package-manager installs.

How it is used

Users run `clac` interactively, enter numbers to push them onto the stack, and type postfix commands such as arithmetic, logarithm, trigonometry, stack, stash, and custom word operations. The README documents a `words` configuration file for user-defined operations.

Why package nerds care

Clac is a neat package-manager specimen because it modernizes the tiny terminal calculator niche rather than replacing it with a GUI. It is small, self-contained, configurable through XDG-style paths, and culturally adjacent to `dc`, Forth, and RPN calculator users.

Timeline

2017: Official GitHub repository created.
2017: Initial release 0.1.0 published.
2026: Official GitHub repository metadata shows recent activity.

Related projects

The README explicitly relates Clac to `dc`, Forth, stack-based languages, concatenative languages, postfix notation, and reverse Polish notation.

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 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.

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: $CLAC_WORDS$XDG_CONFIG_HOME/clac/words~/.config/clac/words

executables

Installed executables

Command	Kind	Exposure	Note
`clac`	cli	global 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 generated2026-07-08

manager version0.3.5

manager updated2026-04-13

local dataok

upstreamcurrent

latest detected0.3.5

https://github.com/soveran/clac

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:clac
Version	0.3.5
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/clac
Homepage	https://github.com/soveran/clac
Repository	https://github.com/soveran/clac
Upstream docs	https://github.com/soveran/clac#readme
License	BSD-2-Clause
Source archive	https://github.com/soveran/clac/archive/refs/tags/0.3.5.tar.gz
Last updated	2026-04-13T10:27:34Z
Pulse	updated
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	clac
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	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.

Nix95%

clac

nix profile install nixpkgs#clac

normalized package name match
Matched by: Clac

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/cl/clac/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

MacPorts95%

clac

sudo port install clac

normalized package name match
Matched by: Clac

MacPorts ports tree · api.github.com · MacPorts ports tree: math/clac/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

package graph

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

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/clac.yml

Used sources

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

Install clac with Homebrew, MacPorts, Nix