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

content/articles/2024-06-22-vpp-ospf-2.md

@@ -3,6 +3,8 @@ date: "2024-06-22T09:17:54Z"
 title: VPP with loopback-only OSPFv3 - Part 2
 aliases:
 - /s/articles/2024/06/22/vpp-ospf-2.html
+params:
+  asciinema: true
 ---
 
 {{< image width="200px" float="right" src="/assets/vpp-ospf/bird-logo.svg" alt="Bird" >}}
@@ -608,10 +610,10 @@ Subtle, but super dope.
 
 The proof is in the pudding, they say.  After all of this link draining, reconfiguring and undraining,
 I gain confidence that this stuff actually works as advertised! I thought it'd be a nice touch to
-demonstrate a link drain, between Frankfurt and Amsterdam. I recorded a little asciinema
-[[screencast](/assets/vpp-ospf/rollout.cast)], shown here:
+demonstrate a link drain, between Frankfurt and Amsterdam. I recorded a little screencast
+[[asciinema](/assets/vpp-ospf/rollout.cast), [gif](/assets/vpp-ospf/rollout.gif)], shown here:
 
-{{< image src="/assets/vpp-ospf/rollout.gif" alt="Asciinema" >}}
+{{< asciinema src="/assets/vpp-ospf/rollout.cast" >}}
 
 ### Returning IPv4 (and IPv6!) addresses