Refs.
- rspec/rspec-core@5e395e2
- https://wiki.archlinux.org/title/XDG_Base_Directory#Supported
- https://wiki.archlinux.jp/index.php/XDG_Base_Directory#.E3.82.B5.E3.83.9D.E3.83.BC.E3.83.88.E3.81.97.E3.81.A6.E3.81.84.E3.82.8B.E3.82.BD.E3.83.95.E3.83.88.E3.82.A6.E3.82.A7.E3.82.A2

Refs.
- ruby/ruby@5c6269c
- ruby/ruby#2174
- https://wiki.archlinux.org/title/XDG_Base_Directory#Supported
- https://wiki.archlinux.jp/index.php/XDG_Base_Directory#.E3.82.B5.E3.83.9D.E3.83.BC.E3.83.88.E3.81.97.E3.81.A6.E3.81.84.E3.82.8B.E3.82.BD.E3.83.95.E3.83.88.E3.82.A6.E3.82.A7.E3.82.A2

Refs.
- https://raw.githubusercontent.com/tmux/tmux/3.1/CHANGES
- tmux/tmux#142
- https://wiki.archlinux.org/title/XDG_Base_Directory#Supported
- https://wiki.archlinux.jp/index.php/XDG_Base_Directory#.E3.82.B5.E3.83.9D.E3.83.BC.E3.83.88.E3.81.97.E3.81.A6.E3.81.84.E3.82.8B.E3.82.BD.E3.83.95.E3.83.88.E3.82.A6.E3.82.A7.E3.82.A2

See also:
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial
- https://wiki.archlinux.jp/index.php/XDG_Base_Directory#.E9.83.A8.E5.88.86.E7.9A.84.E3.81.AB.E3.82.B5.E3.83.9D.E3.83.BC.E3.83.88.E3.81.97.E3.81.A6.E3.81.84.E3.82.8B.E3.82.BD.E3.83.95.E3.83.88.E3.82.A6.E3.82.A7.E3.82.A2

See also:
- rubygems/bundler#6024
- rubygems/bundler#4333
- rubygems/rubygems#1599
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial
- https://wiki.archlinux.jp/index.php/XDG_Base_Directory#.E9.83.A8.E5.88.86.E7.9A.84.E3.81.AB.E3.82.B5.E3.83.9D.E3.83.BC.E3.83.88.E3.81.97.E3.81.A6.E3.81.84.E3.82.8B.E3.82.BD.E3.83.95.E3.83.88.E3.82.A6.E3.82.A7.E3.82.A2

Instead of putting directories for each architecture horizontally under the XDG Base Directory, put directories for each architecture under the sheldon directory.
This will make the directories directly under the XDG Base Directory clearer.

Refs.
- https://github.com/rossmacarthur/sheldon/blob/6244a30069761d299a7135a0393b0c09b57f5fec/README.md#options

See also:
- https://github.com/rbenv/rbenv/blob/d6bb1c63964304d9d3cdac783a65d66d56b35736/README.md#environment-variables
- rbenv/rbenv#811
- rbenv/rbenv#1146
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial
- https://wiki.archlinux.jp/index.php/XDG_Base_Directory#.E9.83.A8.E5.88.86.E7.9A.84.E3.81.AB.E3.82.B5.E3.83.9D.E3.83.BC.E3.83.88.E3.81.97.E3.81.A6.E3.81.84.E3.82.8B.E3.82.BD.E3.83.95.E3.83.88.E3.82.A6.E3.82.A7.E3.82.A2

…HE" explicitly

See also:
- https://starship.rs/config/#logging

> By default starship logs warnings and errors into a file named `~/.cache/starship/session_${STARSHIP_SESSION_KEY}.log`, where the session key is corresponding to an instance of your terminal.

- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial

It seems that the use case of using only the Oh My Zsh plugin is not intended, and an error occurs when loading the plugin in sheldon.
I changed the directory arrangement in `SHELDON_CONFIG_DIR` and `SHELDON_DATA_DIR`, and now the error occurs when loading the plugin.

The error was:
```
/Users/machupicchubeta/.local/share/sheldon/zsh/repos/github.com/ohmyzsh/ohmyzsh/plugins/docker/docker.plugin.zsh:60: no such file or directory: /completions/_docker
```

Until now, I have used the famous Rubiest configuration file as it is, but I created a new one based on it.

See also:
- https://github.com/k0kubun/dotfiles/blob/38d8bb44e88b52719fa8d0c91131ae21d2201596/config/.irbrc
- https://ruby-doc.org/3.2.2/stdlibs/irb/IRB.html
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial

Refs.
- https://rust-lang.github.io/rustup/environment-variables.html
- https://doc.rust-lang.org/cargo/reference/environment-variables.html

See also:
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial
- rust-lang/rustup#247
- rust-lang/cargo#1734
- rust-lang/rfcs#1615
- rust-lang/cargo#5183
- rust-lang/cargo#148

Refs.
- https://github.com/rupa/z/blob/b82ac78a2d4457d2ca09973332638f123f065fd1/README

See also:
- rupa/z#267
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial

Refs.
- https://github.com/nodenv/nodenv/blob/15375bb6d6b5215a47c56cdd8bf347d4f360bf34/README.md#environment-variables

See also:
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial

Refs.
- https://github.com/pyenv/pyenv/blob/54f7a7c0464f4feb3ba61cfee72fc14db802f98f/README.md#environment-variables

See also:
- pyenv/pyenv#139
- pyenv/pyenv#1789
- https://wiki.archlinux.org/title/XDG_Base_Directory#Partial

Refs.
- https://github.com/go-nv/goenv/blob/56c9dec4e8184f16b4af886134b44b9eb2edf9b7/ENVIRONMENT_VARIABLES.md

In addition, I added `GOENV_ROOT/shims` to the PATH environment variable to give preference to Go installed with goenv over Homebrew.
For example, rbenv, nodenv, and pyenv add their respective `shims` directories to the top of the PATH environment variable, but goenv did not, and only Go installed with Homebrew was found.

Refs.
- https://rust-lang.github.io/rustup/installation/index.html#enable-tab-completion-for-bash-fish-zsh-or-powershell

Refs.
- https://github.com/babarot/enhancd/blob/230695f8da8463b18121f58d748851a67be19a00/README.md#configuration