diff --git a/extensions-1900s.conf b/extensions-1900s.conf
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+; The 1900s are a block of extensions on tilde.tel for subscribers to hack on,
+; anyone can contribute whatever they'd like, the only caveat being that it
+; can't infringe on any other ~tel user's good time so no Happy Dude antics
+;
+; https://github.com/tilde-tel/the1900s