feat: export SOPS_AGE_KEY_FILE when the chezmoi age key exists

dot_config/nushell/env.nu.tmpl

@@ -65,6 +65,9 @@ load-env {
     MANPAGER: "sh -c 'col -bx | bat --language man --plain'"
     NPM_CONFIG_USERCONFIG: #{{ if ne .role "work" }}$'($env.XDG_CONFIG_HOME)/npm/npmrc'#{{ else }}$'($env.XDG_CONFIG_HOME)/npm/config'#{{ end }}
     RIPGREP_CONFIG_PATH: $'($env.XDG_CONFIG_HOME)/ripgrep/config'
+    #{{ if stat (joinPath .chezmoi.homeDir ".config" "chezmoi" "age.key") -}}
+    SOPS_AGE_KEY_FILE: $'($env.HOME)/.config/chezmoi/age.key'
+    #{{ end -}}
 
     PATH: ([
         $env.XDG_BIN_HOME

dot_config/profile/env.d/base.env.tmpl

@@ -32,3 +32,7 @@ NPM_CONFIG_USERCONFIG="#{{ if ne .role "work" }}${XDG_CONFIG_HOME}/npm/npmrc#{{
 #{{ if lookPath "rg" -}}
 RIPGREP_CONFIG_PATH="${XDG_CONFIG_HOME}/ripgrep/config"
 #{{ end -}}
+
+#{{ if stat (joinPath .chezmoi.homeDir ".config" "chezmoi" "age.key") -}}
+SOPS_AGE_KEY_FILE="${HOME}/.config/chezmoi/age.key"
+#{{ end -}}