personal/implr: vpn.curs: add anthracite

Change-Id: I5403b89b38e9c1706d8da1ba61085fb5cc0833d3
Reviewed-on: https://gerrit.hackerspace.pl/c/hscloud/+/1247
diff --git a/personal/implr/vpn/vpn.jsonnet b/personal/implr/vpn/vpn.jsonnet
index c467c5e..71b7641 100644
--- a/personal/implr/vpn/vpn.jsonnet
+++ b/personal/implr/vpn/vpn.jsonnet
@@ -55,5 +55,6 @@
         desk1: vpn.Client("desk1", top.servers.praisethesun),
         desk2: vpn.Client("desk2", top.servers.curssys),
         thonk: vpn.Client("thonk", top.servers.curssys),
+        anthracite: vpn.Client("anthracite", top.servers.curssys),
     }
 }