diff --git a/2022-05-30.md b/2022-05-30.md
index 794817d..3cb648c 100644
--- a/2022-05-30.md
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@@ -1 +1,3 @@
-[Useful guide to the oauth nonsense to use the Mastodon API](https://gist.github.com/charlag/ef5ada491066dc09bd79580fdd6d4482). Not sure if there's much I'd want to do with it? Hmm. 
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+[Useful guide to the oauth nonsense to use the Mastodon API](https://gist.github.com/charlag/ef5ada491066dc09bd79580fdd6d4482). Not sure if there's much I'd want to do with it? Hmm. 
+
+Xe did a [nice guide to ssh keys and yubikeys](https://xeiaso.net/blog/yubikey-ssh-key-storage). I should bother to set that up... 
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