install

Additional install commands

macOS

Homebrewverified · 100%

brew install carl

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install carl

MacPorts ports tree · office/carl/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#carl

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

overview

Package summary

Calendar for the command-line

Project links

Commands and aliases

carl

history

Project history and usage

carl is a Rust command-line calendar that deliberately resembles traditional cal(1) tools while adding color themes, iCalendar highlighting, agendas, and template customization.

Project history

The Codeberg repository was created in December 2021 and the first tagged release, 0.0.1, was published on January 1, 2022. Its README identifies Birger Schacht as the copyright holder for 2021-2023 and documents a compact CLI installed with cargo.

Adoption history

carl is a niche terminal productivity tool rather than a large platform project. Its adoption path is typical for Rust command-line software: upstream publishes source and cargo installation instructions, while package managers such as Homebrew, MacPorts, and Nix make the executable available outside Cargo workflows.

How it is used

Users run carl to print one month, three months, a year, Julian dates, or a specified date. Configuration can point to iCalendar files or directories, select themes, and configure custom Jinja templates.

Why package nerds care

For package nerds, carl is a tidy example of a modern replacement for a small Unix utility: it keeps the old terminal shape of cal(1), but adds XDG configuration, iCalendar awareness, theming, and Rust packaging.

Timeline

2021: Codeberg repository created.
2022: 0.0.1 tagged as the first release.
2023: 0.0.3 released on Codeberg.

Related projects

carl explicitly positions itself next to cal(1) implementations.
Its iCalendar support connects it to the broader family of terminal calendar and agenda tools.

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.
Build metadata lists 1 build dependencies.

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: XDG_CONFIG_DIRS/carl/config.tomlXDG_CONFIG_HOME/.carl/config.toml

executables

Installed executables

Command	Kind	Exposure	Note
`carl`	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 generated2026-07-25

manager version0.6.0

manager updated

local dataok

upstreamnot checked

latest detectednot detected

https://codeberg.org/birger/carl

infoNo package-manager update timestamp was available.low confidence
infoRelease/tag comparison is only available for GitHub repositories.https://codeberg.org/birger/carlnone confidence

install metadata

Package metadata

Package key	brew:carl
Version	0.6.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/carl
Homepage	https://codeberg.org/birger/carl
Repository	https://codeberg.org/birger/carl
Upstream docs	https://carl.cli.rs/
License	MIT
Source archive	https://static.crates.io/crates/carl/carl-0.6.0.crate
Build dependencies	rust
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	carl
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
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.

Nix95%

carl

nix profile install nixpkgs#carl

normalized package name match
Matched by: Carl

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

MacPorts95%

carl

sudo port install carl

normalized package name match
Matched by: Carl

MacPorts ports tree · api.github.com · MacPorts ports tree: office/carl/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/carl.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 carl with Homebrew, MacPorts, Nix