diff --git a/.tangled/workflows/deploy-blog.yml b/.tangled/workflows/deploy-blog.yml
--- a/.tangled/workflows/deploy-blog.yml
+++ b/.tangled/workflows/deploy-blog.yml
@@ -9,38 +9,13 @@ engine: microvm
 image: nixos
 
 dependencies:
-  - go
-  - gcc
   - nodejs
-  - tailwindcss
 
 steps:
-  - name: patch static dir
-    command: |
-      mkdir -p appview/pages/static/logos
-
-  - name: build dolly
+  - name: build blog
     command: |
-      go build -o dolly.out ./cmd/dolly
-
-  - name: generate favicons
-    command: |
-      ./dolly.out -template appview/pages/templates/fragments/dolly -output appview/pages/static/logos/dolly.png -size 180
-      ./dolly.out -template appview/pages/templates/fragments/dolly -output appview/pages/static/logos/dolly.ico -size 48
-      ./dolly.out -template appview/pages/templates/fragments/dolly -output appview/pages/static/logos/dolly.svg -color currentColor -favicon
-
-  - name: generate css
-    command: |
-      tailwindcss -i input.css -o appview/pages/static/tw.css
-
-  - name: build blog cmd
-    command: |
-      go build -o blog.out ./cmd/blog
-
-  - name: build static site
-    command: |
-      ./blog.out build
+      nix build .#blog --impure
 
   - name: deploy
     command: |
-      npx --yes wrangler pages deploy --branch master --project-name tangled-blog ./build
+      npx --yes wrangler pages deploy --branch master --project-name tangled-blog ./result
diff --git a/blog/templates/index.html b/blog/templates/index.html
--- a/blog/templates/index.html
+++ b/blog/templates/index.html
@@ -66,11 +66,14 @@ {{ if .Meta.Draft }}<span class="text-red-500 text-xs font-normal ml-1">[draft]</span>{{ end }}
         </span>
       </div>
       <div class="flex items-center gap-2">
+        {{ $hasAvatar := false }}{{ range .Meta.Authors }}{{ if tinyAvatar .Handle }}{{ $hasAvatar = true }}{{ end }}{{ end }}
+        {{ if $hasAvatar }}
         <div class="inline-flex items-center -space-x-2 shrink-0">
           {{ range .Meta.Authors }}
-          <img src="{{ tinyAvatar .Handle }}" class="size-5 rounded-full border border-gray-300 dark:border-gray-700" alt="{{ .Name }}" title="{{ .Name }}" />
+          {{ $av := tinyAvatar .Handle }}{{ if $av }}<img src="{{ $av }}" class="size-5 rounded-full border border-gray-300 dark:border-gray-700" alt="{{ .Name }}" title="{{ .Name }}" />{{ end }}
           {{ end }}
         </div>
+        {{ end }}
         <div class="text-sm text-gray-400 dark:text-gray-500 shrink-0">
           {{ $date := .ParsedDate }}{{ $date | shortTimeFmt }}
         </div>
diff --git a/nix/pkgs/blog.nix b/nix/pkgs/blog.nix
--- a/nix/pkgs/blog.nix
+++ b/nix/pkgs/blog.nix
@@ -27,7 +27,9 @@ env.CGO_LDFLAGS = "-L ${sqlite-lib}/lib";
     CGO_ENABLED = 1;
   };
 in
-  runCommandLocal "blog" {} ''
+  runCommandLocal "blog" {
+    TANGLED_AVATAR_SHARED_SECRET = builtins.getEnv "TANGLED_AVATAR_SHARED_SECRET";
+  } ''
     mkdir -p working
     cp -r --no-preserve=mode ${src}/blog working/
     cp -r --no-preserve=mode ${src}/appview working/