diff --git a/_home.macos/.chezmoiexternal.yaml b/_home.macos/.chezmoiexternal.yaml
new file mode 100644
index 0000000..1d84c22
--- /dev/null
+++ b/_home.macos/.chezmoiexternal.yaml
@@ -0,0 +1,105 @@
+# https://www.chezmoi.io/reference/special-files-and-directories/chezmoiexternal-format/
+#
+# The externals are checked based on the refreshPeriod whenever an `apply` (or `update`) operations run  
+#
+# The simplest form to update all externals:
+# ```sh
+# chezmoi apply --include externals
+# ```
+#
+# Variable              Type            Default Description
+# type                  string          none    External type (file, archive, archive-file, or git-repo)
+# url                   string          none    URL
+# refreshPeriod         duration        0       Refresh period (Examples: one day (24h), one week (168h), or four weeks (672h))
+# executable            bool            false   Add executable_ attribute to file
+# path                  string          none    Path to file in archive
+
+{{ $defaultRefresh := "168h" -}}
+{{- $externals := dict -}}
+
+{{ $myArch := "aarch64-apple-darwin" }}
+
+{{- with $repo := "zellij-org/zellij" -}}
+{{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
+{{-     $_ := set $externals ".cache/chezmoi/tmp/zellij" (dict
+          "type" "archive-file"
+          "url" (printf "https://github.com/%s/releases/download/%s/zellij-%s.tar.gz" $repo $version $myArch)
+          "path" "zellij"
+          "executable" true
+          "refreshPeriod" $defaultRefresh
+) -}}
+{{-   end -}}
+{{- end }}
+
+{{- with $repo := "dandavison/delta" -}}
+{{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
+{{-     $_ := set $externals ".local/bin/delta" (dict
+          "type" "archive-file"
+          "url" (printf "https://github.com/%s/releases/download/%s/delta-%s-%s.tar.gz" $repo $version $version $myArch)
+          "path" (printf "delta-%s-%s/delta" $version $myArch)
+          "refreshPeriod" $defaultRefresh
+) -}}
+{{-   end -}}
+{{- end -}}
+
+{{ $myArch = "darwin_arm64" }}
+
+{{- with $repo := "hickford/git-credential-oauth" -}}
+{{-   with $version := trimPrefix "v" (gitHubLatestRelease $repo).GetTagName -}}
+{{-     $_ := set $externals ".local/bin/git-credential-oauth" (dict
+          "type" "archive-file"
+          "url" (printf "https://github.com/%s/releases/download/v%s/git-credential-oauth_%s_%s.tar.gz" $repo $version $version $myArch)
+          "path" "git-credential-oauth"
+          "executable" true
+          "refreshPeriod" $defaultRefresh
+) -}}
+{{-   end -}}
+{{- end -}}
+
+{{ $myArch = "mac" }}
+
+{{- with $repo := "extrawurst/gitui" -}}
+{{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
+{{-     $_ := set $externals ".local/bin/gitui" (dict
+          "type" "archive-file"
+          "url" (printf "https://github.com/%s/releases/download/%s/gitui-%s.tar.gz" $repo $version $myArch)
+          "path" "./gitui"
+          "executable" true
+          "refreshPeriod" $defaultRefresh
+) -}}
+{{-   end -}}
+{{- end }}
+
+{{ $myArch = "Darwin_arm64" }}
+
+{{- with $repo := "theimpostor/osc" -}}
+{{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
+{{-     $_ := set $externals ".local/bin/osc" (dict
+          "type" "archive-file"
+          "url" (printf "https://github.com/%s/releases/download/%s/osc_%s.tar.gz" $repo $version $myArch)
+          "path" "osc"
+          "executable" true
+          "refreshPeriod" $defaultRefresh
+) -}}
+{{-   end -}}
+{{- end }}
+
+{{ $myArch = "darwin-arm64" }}
+
+{{- with $repo := "Lifailon/lazyjournal" -}}
+{{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
+{{-     $_ := set $externals ".local/bin/lazyjournal" (dict
+          "type" "file"
+          "url" (printf "https://github.com/%s/releases/download/%s/lazyjournal-%s-%s" $repo $version $version $myArch)
+          "executable" true
+          "refreshPeriod" $defaultRefresh
+) -}}
+{{-   end -}}
+{{- end }}
+
+{{- $externals | toYaml }}
+
+".config/sz.env/lib/delta.themes.gitconfig":
+  type: "file"
+  url: "https://raw.githubusercontent.com/dandavison/delta/refs/heads/main/themes.gitconfig"
+  refreshPeriod: "{{ $defaultRefresh }}"
diff --git a/_src.posix/.chezmoiexternal.yaml b/_src.posix/.chezmoiexternal.yaml
index a5362b7..12ee019 100644
--- a/_src.posix/.chezmoiexternal.yaml
+++ b/_src.posix/.chezmoiexternal.yaml
@@ -17,11 +17,13 @@
 {{ $defaultRefresh := "168h" -}}
 {{- $externals := dict -}}
 
+{{ $myArch := "x86_64-unknown-linux-musl" }}
+
 {{- with $repo := "zellij-org/zellij" -}}
 {{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
 {{-     $_ := set $externals ".cache/chezmoi/tmp/zellij" (dict
           "type" "archive-file"
-          "url" (printf "https://github.com/%s/releases/download/%s/zellij-x86_64-unknown-linux-musl.tar.gz" $repo $version)
+          "url" (printf "https://github.com/%s/releases/download/%s/zellij-%s.tar.gz" $repo $version $myArch)
           "path" "zellij"
           "executable" true
           "refreshPeriod" $defaultRefresh
@@ -33,18 +35,20 @@
 {{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
 {{-     $_ := set $externals ".local/bin/delta" (dict
           "type" "archive-file"
-          "url" (printf "https://github.com/%s/releases/download/%s/delta-%s-x86_64-unknown-linux-musl.tar.gz" $repo $version $version)
-          "path" (printf "delta-%s-x86_64-unknown-linux-musl/delta" $version)
+          "url" (printf "https://github.com/%s/releases/download/%s/delta-%s-%s.tar.gz" $repo $version $version $myArch)
+          "path" (printf "delta-%s-%s/delta" $version $myArch)
           "refreshPeriod" $defaultRefresh
 ) -}}
 {{-   end -}}
 {{- end -}}
 
+{{ $myArch = "linux_amd64" }}
+
 {{- with $repo := "hickford/git-credential-oauth" -}}
 {{-   with $version := trimPrefix "v" (gitHubLatestRelease $repo).GetTagName -}}
 {{-     $_ := set $externals ".local/bin/git-credential-oauth" (dict
           "type" "archive-file"
-          "url" (printf "https://github.com/%s/releases/download/v%s/git-credential-oauth_%s_linux_amd64.tar.gz" $repo $version $version)
+          "url" (printf "https://github.com/%s/releases/download/v%s/git-credential-oauth_%s_%s.tar.gz" $repo $version $version $myArch)
           "path" "git-credential-oauth"
           "executable" true
           "refreshPeriod" $defaultRefresh
@@ -52,11 +56,13 @@
 {{-   end -}}
 {{- end -}}
 
+{{ $myArch = "linux-x86_64" }}
+
 {{- with $repo := "extrawurst/gitui" -}}
 {{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
 {{-     $_ := set $externals ".local/bin/gitui" (dict
           "type" "archive-file"
-          "url" (printf "https://github.com/%s/releases/download/%s/gitui-linux-x86_64.tar.gz" $repo $version)
+          "url" (printf "https://github.com/%s/releases/download/%s/gitui-%s.tar.gz" $repo $version $myArch)
           "path" "./gitui"
           "executable" true
           "refreshPeriod" $defaultRefresh
@@ -64,11 +70,13 @@
 {{-   end -}}
 {{- end }}
 
+{{ $myArch = "linux_x86_64" }}
+
 {{- with $repo := "theimpostor/osc" -}}
 {{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
 {{-     $_ := set $externals ".local/bin/osc" (dict
           "type" "archive-file"
-          "url" (printf "https://github.com/%s/releases/download/%s/osc_linux_x86_64.tar.gz" $repo $version)
+          "url" (printf "https://github.com/%s/releases/download/%s/osc_%s.tar.gz" $repo $version $myArch)
           "path" "osc"
           "executable" true
           "refreshPeriod" $defaultRefresh
@@ -76,11 +84,13 @@
 {{-   end -}}
 {{- end }}
 
+{{ $myArch = "linux-amd64" }}
+
 {{- with $repo := "Lifailon/lazyjournal" -}}
 {{-   with $version := (gitHubLatestRelease $repo).GetTagName -}}
 {{-     $_ := set $externals ".local/bin/lazyjournal" (dict
           "type" "file"
-          "url" (printf "https://github.com/%s/releases/download/%s/lazyjournal-%s-linux-amd64" $repo $version $version)
+          "url" (printf "https://github.com/%s/releases/download/%s/lazyjournal-%s-%s" $repo $version $version $myArch)
           "executable" true
           "refreshPeriod" $defaultRefresh
 ) -}}