Convert all asciinema into live players - ensure there is a GIF for older casts, remove the dangling CSS/JS

content/articles/2024-05-25-nat64-1.md

@@ -3,6 +3,8 @@ date: "2024-05-25T12:23:54Z"
 title: 'Case Study: NAT64'
 aliases:
 - /s/articles/2024/05/25/nat64-1.html
+params:
+  asciinema: true
 ---
 
 # Introduction
@@ -398,9 +400,9 @@ down Bird2 alltogether will immediately drain the machine of all traffic, while
 immediately rerouted.
 
 If you're curious, here's a few minutes of me playing with failover, while watching YouTube videos
-concurrently.
+concurrently [[asciinema](/assets/nat64/nat64.cast), [gif](/assets/nat64/nat64.gif)]:
 
-{{< image src="/assets/nat64/nat64.gif" alt="Asciinema" >}}
+{{< asciinema src="/assets/nat64/nat64.cast" >}}
 
 ### What's Next