diff --git a/docs/content/en/blog/DevLog-2026.03.23/assets/cover-dark.avif b/docs/content/en/blog/DevLog-2026.03.23/assets/cover-dark.avif
new file mode 100644
index 000000000..c493d0389
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diff --git a/docs/content/en/blog/DevLog-2026.03.23/assets/cover-light.avif b/docs/content/en/blog/DevLog-2026.03.23/assets/cover-light.avif
new file mode 100644
index 000000000..3e6e0277e
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diff --git a/docs/content/en/blog/DevLog-2026.03.23/index.md b/docs/content/en/blog/DevLog-2026.03.23/index.md
index 085fc3146..3b918693e 100644
--- a/docs/content/en/blog/DevLog-2026.03.23/index.md
+++ b/docs/content/en/blog/DevLog-2026.03.23/index.md
@@ -4,6 +4,9 @@ category: DevLog
 date: 2026-03-23
 excerpt: |
   Initial investigation into improving AIRI mobile performance
+preview-cover:
+  light: "@assets('./assets/cover-light.avif')"
+  dark: "@assets('./assets/cover-dark.avif')"
 ---
 
 Hi, this is [@PurCHES5](https://github.com/PurCHES5).