diff --git a/mute_sync.py b/mute_sync.py
index 7d4452b..d826b4a 100644
--- a/mute_sync.py
+++ b/mute_sync.py
@@ -87,10 +87,10 @@ class UserAccount:
         return r.json()
 
     @functools.cached_property
-    def mutes(self) -> list[dict]:
+    def mutes(self) -> set[str]:
         mutes = paginated_get(self.client, '/api/v1/mutes')
         self.instance.account_cache.extend(mutes)
-        return mutes
+        return set((mute['url'] for mute in mutes))
 
     def lookup_acct(self, handle: str) -> dict | None:
         return self.instance.lookup_acct(handle, self.client)
@@ -138,7 +138,34 @@ if __name__ == '__main__':
 
     print('accounts:', ', '.join((str(acct) for acct in accounts)))
 
+    all_mutes = set()
     for acct in accounts:
-        print(str(acct))
-        print([mute_acct["acct"] for mute_acct in acct.mutes])
-        print(acct.lookup_acct('https://merping.synth.download/@chfour'))
+        all_mutes.update(acct.mutes)
+
+    print(f'all mutes ({len(all_mutes)} total):')
+    print(', '.join(all_mutes))
+    print()
+
+    for acct in accounts:
+        not_here = all_mutes.difference(acct.mutes)
+
+        print(f'mutes to add to {acct}:')
+        count = 0
+        for url in not_here:
+            print(f'looking up {url}...', end='')
+            found = acct.lookup_acct(url)
+            print(f'\x1b[2K\r', end='')
+
+            if found is None:
+                print(f'  {url} not found')
+                continue
+
+            print(f'+ @{found["acct"]}   ({url})')
+            count += 1
+
+        print(f'{count} total\n')
+
+    choice = input('proceed? (type "yes" to continue) ')
+    if choice.lower() != 'yes':
+        print('operation cancelled')
+        exit()