asciinema を Homebrew でインストール

プロジェクトリンク

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• asciinema

プロジェクトの歴史

The GitHub repository was created in 2011 and the project identifies Marcin Kulik as copyright holder from that year. The early release stream reached v0.1 in 2012 and v1.0.0 in March 2015, establishing asciinema as a small command-line recorder tied to the asciinema.org sharing service.

The project evolved from a Python implementation to a Rust implementation. The current README says active development happens on the `develop` branch, that the current 3.x generation is written in Rust, and that the previous 2.x generation written in Python remains available on the `python` branch.

採用の歴史

asciinema spread because it solved a packaging-era problem: terminal sessions are text streams, not pixels, so they can be captured, replayed, embedded, uploaded, and versioned more naturally than screen recordings. Its official README emphasizes `.cast` files, terminal replay, web embedding, server upload, and live streaming.

The input package facts show broad distribution across Alpine, Homebrew, Debian, Fedora, MacPorts, Nix, Arch, Ubuntu, and openSUSE packaging. That breadth matches actual usage: developers install it from the system package manager, run `asciinema rec`, then share the resulting recording locally, on asciinema.org, or on a self-hosted server.

使われ方

Common usage is `asciinema rec demo.cast` to capture a shell session, replaying recordings in a terminal, embedding them on a web page with asciinema-player, or uploading/streaming them through an asciinema server. CLI 3.x adds TOML configuration at the user and system level for server URL, recording behavior, playback, notifications, and hotkeys.

パッケージ好きにとっての重要性

asciinema is a classic terminal-culture package: tiny command, durable text-like artifact, easy package-manager install, and excellent demos in READMEs and bug reports. It also has a notable implementation migration from Python to Rust, which affects downstream packagers, dependency closure, generated man pages, and shell completions.

タイムライン

• 2011: GitHub repository created; project copyright line starts at 2011.
• 2012: v0.1 tag commit in the repository.
• 2015: v1.0.0 release published.
• 2018: v2.0.0 release published.
• 2025: v3.0.0 release published, marking the Rust 3.x generation.
• 2026: v3.2.1 release published.

Related projects

• asciinema-player embeds recordings on web pages.
• asciinema-server, including asciinema.org, hosts uploads and relay streaming.
• The asciicast file format is the recording format used by the CLI and player.

ソース

• https://api.github.com/repos/asciinema/asciinema/releases
• https://docs.asciinema.org/
• https://docs.asciinema.org/manual/cli/configuration/v3
• https://github.com/asciinema/asciinema
• source_facts.package-manager