name: chezmoi description: Manage dotfiles with chezmoi. Use when working with dotfiles, chezmoi templates, machine-specific configuration, or when the user mentions chezmoi. allowed-tools: Read, Edit, Write, Glob, Grep, Bash(chezmoi:*)

Chezmoi Dotfiles Management

Commands

chezmoi add <file>           # Add file to chezmoi
chezmoi apply                # Apply changes to home directory
chezmoi apply --force        # Apply without prompts (required in non-TTY)
chezmoi diff                 # Preview what would change
chezmoi cat <file>           # Preview rendered template output
chezmoi data                 # Show available template variables
chezmoi edit <file>          # Edit source file

File Naming

Machine-Specific Templates

Convert a static file to a template by renaming with .tmpl suffix, then use conditionals:

By OS

{{- if eq .chezmoi.os "darwin" }}
# macOS config
{{- end }}

{{- if eq .chezmoi.os "linux" }}
# Linux config
{{- end }}

By hostname

{{- if hasPrefix .chezmoi.hostname "work-" }}
# work machine config
{{- end }}

By environment variable

{{- if env "WORK_ENV" }}
# when WORK_ENV is set
{{- end }}

Combined conditions

{{- if or (eq .chezmoi.os "darwin") (env "WORK_ENV") }}
# macOS or when WORK_ENV is set
{{- end }}

Escaping Nested Templates

When the target file uses {{ }} syntax (like mise, Jinja, Tera):

SOME_VAR = "{{ "{{" }}env.OTHER_VAR{{ "}}" }}"

This renders as SOME_VAR = "{{env.OTHER_VAR}}" in the output.

External Dependencies

Manage external git repos in .chezmoiexternal.toml:

[".zsh/plugins/some-plugin"]
    type = "git-repo"
    url = "https://github.com/user/some-plugin.git"
    refreshPeriod = "168h"

Gotchas

1. No auto-delete: Files removed from source need manual cleanup at destination
2. Always preview: Run chezmoi cat <file> before applying templates
3. Non-TTY: Use chezmoi apply --force when running from scripts or Claude
4. Template errors: Use chezmoi execute-template to debug template syntax