more tools

derpcheck-ssh/README.md

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+# server-toolset
+
+## derpcheck-ssh
+
+See connection details while SSH'ing to a remote with Tailscale.

derpcheck-ssh/ssh.fish

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+function ssh --wraps ssh
+  if test (count $argv) -eq 1
+    set -l target_host $argv[1]
+    set -l ts_status (tailscale status | grep -i -- "$target_host")
+    if test -n "$ts_status"
+      echo "$ts_status"
+      echo ""
+    end
+  end
+
+  command ssh $argv
+end