diff --git a/doc/specs/schemas/BroadcastRoundForm.yaml b/doc/specs/schemas/BroadcastRoundForm.yaml
index 0f5d620..992d9bc 100644
--- a/doc/specs/schemas/BroadcastRoundForm.yaml
+++ b/doc/specs/schemas/BroadcastRoundForm.yaml
@@ -1,103 +1,114 @@
-type: object
-properties:
-  name:
-    type: string
-    maxLength: 80
-    minLength: 3
-    description: |
-      Name of the broadcast round.
-      Example: `Round 1`
-  syncUrl:
-    type: string
-    format: uri
-    description: |
-      URL that Lichess will poll to get updates about the games. It must be publicly accessible from the Internet.
-      
-      Example:
-      ```txt
-      https://myserver.org/myevent/round-10/games.pgn
-      ```
-      
-      Choose one between `syncUrl`, `syncUrls` and `syncIds`, if it is missing, the broadcast needs to be fed by [pushing PGN to it](#operation/broadcastPush)
-  syncUrls:
-    type: string
-    description: |
-      URLs that Lichess will poll to get updates about the games, separated by newlines. They must be publicly accessible from the Internet.
-      
-      Example:
-      ```txt
-      https://myserver.org/myevent/round-10/game-1.pgn
-      https://myserver.org/myevent/round-10/game-2.pgn
-      ```
-      
-      Choose one between `syncUrl`, `syncUrls` and `syncIds`, if it is missing, the broadcast needs to be fed by [pushing PGN to it](#operation/broadcastPush)
-  syncIds:
-    type: string
-    description: |
-      Lichess game IDs - Up to 64 Lichess game IDs, separated by spaces.
-      on
-      Choose one between `syncUrl`, `syncUrls` and `syncIds`, if it is missing, the broadcast needs to be fed by [pushing PGN to it](#operation/broadcastPush)
-  onlyRound:
-    type: integer
-    maximum: 999
-    minimum: 1
-    description: |
-      Filter games by round number
+allOf:
+  - type: object
+    properties:
+      name:
+        type: string
+        maxLength: 80
+        minLength: 3
+        description: |
+          Name of the broadcast round.
+          Example: `Round 1`
+      onlyRound:
+        type: integer
+        maximum: 999
+        minimum: 1
+        description: |
+          Filter games by round number
 
-      Optional, only keep games from the source that match a round number.
-      It uses the PGN **Round** tag. These would match round 3:
-      ```txt
-      [Round "3"]
-      [Round "3.1"]
-      ```
-      If you set a round number, then games without a **Round** tag are dropped.
+          Optional, only keep games from the source that match a round number.
+          It uses the PGN **Round** tag. These would match round 3:
+          ```txt
+          [Round "3"]
+          [Round "3.1"]
+          ```
+          If you set a round number, then games without a **Round** tag are dropped.
 
-      It only works if you chose `syncUrl` or `syncUrls` as the source.
-  slices:
-    type: string
-    description: |
-      Select slices of the games
+          It only works if you chose `syncUrl` or `syncUrls` as the source.
+      slices:
+        type: string
+        description: |
+          Select slices of the games
 
-      Optional. Select games based on their position in the source.
-      ```txt
-      1           only select the first board
-      1-4         only select the first 4 boards
-      1,2,3,4     same as above, first 4 boards
-      11-15,21-25 boards 11 to 15, and boards 21 to 25
-      2,3,7-9     boards 2, 3, 7, 8, and 9
-      ```
-      Slicing is done after filtering by round number.
+          Optional. Select games based on their position in the source.
+          ```txt
+          1           only select the first board
+          1-4         only select the first 4 boards
+          1,2,3,4     same as above, first 4 boards
+          11-15,21-25 boards 11 to 15, and boards 21 to 25
+          2,3,7-9     boards 2, 3, 7, 8, and 9
+          ```
+          Slicing is done after filtering by round number.
 
-      It only works if you chose `syncUrl` or `syncUrls` as the source.
-  startsAt:
-    type: integer
-    description: |
-      Timestamp in milliseconds of broadcast round start. Leave empty to manually start the broadcast round.
-      Example: `1356998400070`
-    minimum: 1356998400070
-  startsAfterPrevious:
-    type: boolean
-    description: |
-      The start date is unknown, and the round will start automatically when the previous round completes.
-    default: false
-  delay:
-    type: integer
-    description: |
-      Delay in seconds for movements to appear on the broadcast. Leave it empty if you don't need it.
-      Example: `900` (15 min)
-    minimum: 0
-    maximum: 3600
-  finished:
-    type: boolean
-    description: |
-      Mark whether the round has been completed.
-    default: false
-  period:
-    type: integer
-    description: |
-      (Only for Admins) Waiting time for each poll.
-    minimum: 2
-    maximum: 60
+          It only works if you chose `syncUrl` or `syncUrls` as the source.
+      startsAt:
+        type: integer
+        description: |
+          Timestamp in milliseconds of broadcast round start. Leave empty to manually start the broadcast round.
+          Example: `1356998400070`
+        minimum: 1356998400070
+      startsAfterPrevious:
+        type: boolean
+        description: |
+          The start date is unknown, and the round will start automatically when the previous round completes.
+        default: false
+      delay:
+        type: integer
+        description: |
+          Delay in seconds for movements to appear on the broadcast. Leave it empty if you don't need it.
+          Example: `900` (15 min)
+        minimum: 0
+        maximum: 3600
+      finished:
+        type: boolean
+        description: |
+          Mark whether the round has been completed.
+        default: false
+      period:
+        type: integer
+        description: |
+          (Only for Admins) Waiting time for each poll.
+        minimum: 2
+        maximum: 60
 
-required:
-  - name
+    required:
+      - name
+
+  - oneOf:
+    - type: object
+      title: send games via push
+    - type: object
+      title: syncUrl
+      properties:
+        syncUrl:
+          type: string
+          format: uri
+          description: |
+            URL that Lichess will poll to get updates about the games. It must be publicly accessible from the Internet.
+            
+            Example:
+            ```txt
+            https://myserver.org/myevent/round-10/games.pgn
+            ```
+            Choose one between `syncUrl`, `syncUrls` and `syncIds`, if it is missing, the broadcast needs to be fed by [pushing PGN to it](#operation/broadcastPush)
+    - type: object
+      title: syncUrls
+      properties:
+        syncUrls:
+          type: string
+          description: |
+            URLs that Lichess will poll to get updates about the games, separated by newlines. They must be publicly accessible from the Internet.
+            
+            Example:
+            ```txt
+            https://myserver.org/myevent/round-10/game-1.pgn
+            https://myserver.org/myevent/round-10/game-2.pgn
+            ```
+            Choose one between `syncUrl`, `syncUrls` and `syncIds`, if it is missing, the broadcast needs to be fed by [pushing PGN to it](#operation/broadcastPush)
+    - type: object
+      title: syncIds
+      properties:
+        syncIds:
+          type: string
+          description: |
+            Lichess game IDs - Up to 64 Lichess game IDs, separated by spaces.
+            Choose one between `syncUrl`, `syncUrls` and `syncIds`, if it is missing, the broadcast needs to be fed by [pushing PGN to it](#operation/broadcastPush)