Default to using testnet.s.c when running as a Snap

multinode-demo/wallet.sh

@@ -12,9 +12,13 @@ SOLANA_CONFIG_DIR="$SOLANA_CONFIG_DIR"-client
 if [[ ${1%:} != "$1" || "$1" =~ [^.].[^.] || -d $1 ]]; then
   leader=$1 # interpret
   shift
+else
+  if [[ -d "$SNAP" ]]; then
+    leader=testnet.solana.com # Default to testnet when running as a Snap
   else
     leader=$here/.. # Default to local solana repo
   fi
+fi
 
 rsync_leader_url=$(rsync_url "$leader")