keyd を Homebrew でインストール

プロジェクトリンク

• ホームページ

コマンドとエイリアス

• keyd
• keyd-application-mapper

プロジェクトの歴史

The project, maintained by rvaiya, framed its impetus as a missing Linux-wide remapping solution. Its design goals are speed, a simple config format, consistent modifier behavior, and a small Unix-style daemon with IPC for scripting and application-specific remapping.

The v2 documentation notes that the configuration format went through several iterations after the first release, making the man page the authoritative guide for users migrating from v1. The man page describes keyd as a system-wide daemon supporting layers, one-shot modifiers, macros, and custom layouts that persist across Wayland, X11, and TTY boundaries.

採用の歴史

keyd became popular among Linux users who wanted firmware-like keyboard behavior without flashing QMK or depending on a single desktop session. Distribution packages in Alpine, Debian, Nix, Arch, openSUSE, and Homebrew-style catalogs show adoption beyond source builds.

使われ方

The common first configuration maps Caps Lock to Escape when tapped and Control when held, then reloads the daemon with keyd reload. More advanced users define layers, per-keyboard IDs, application mappings, Unicode output, and home-row or one-shot modifiers.

パッケージ好きにとっての重要性

keyd is interesting to package nerds because it packages a tiny C daemon that changes the physical typing environment for the whole machine. It is also a practical response to the Wayland transition: remapping below the display server avoids the split between X-only and Wayland-only tools.

タイムライン

• 2021: Downstream package history shows early 1.x packaging activity.
• 2022: v2-era documentation told users migrating from v1 to reread the man page after config-format iterations.
• 2024: Distribution bug reports and manuals show keyd being used on modern Linux kernels and Wayland desktops.
• 2026: The project remained active enough for new issues and package-manager submissions around Homebrew and Linux distributions.

Related projects

• Related tools include xmodmap, xcape, interception-tools, xremap, KMonad, Kanata, and QMK firmware. keyd's distinct niche is system-wide Linux remapping with firmware-like layers but no keyboard flashing.

ソース

• https://github.com/rvaiya/keyd
• https://github.com/rvaiya/keyd/blob/master/docs/CHANGELOG.md
• https://github.com/rvaiya/keyd/blob/master/docs/keyd.scdoc
• https://github.com/rvaiya/keyd/releases
• https://man.archlinux.org/man/extra/keyd/keyd.1.en