code review:

added p-tag for voice reply to kind 1
allow waveform IMeta with a missing mimeType to render as audio

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/Text.kt

@@ -68,13 +68,6 @@ fun RenderTextEvent(
 ) {
     val noteEvent = note.event ?: return
 
-    // Check if this is an audio-only event (content is just an audio URL with waveform IMeta)
-    val isAudioOnly = remember(noteEvent) { noteEvent.isAudioOnlyContent() }
-    if (isAudioOnly) {
-        RenderAudioFromIMeta(note, accountViewModel, nav)
-        return
-    }
-
     val showReply by
         remember(note) {
             derivedStateOf {
@@ -107,6 +100,13 @@ fun RenderTextEvent(
         }
     }
 
+    // Check if this is an audio-only event (content is just an audio URL with waveform IMeta)
+    val isAudioOnly = remember(noteEvent) { noteEvent.isAudioOnlyContent() }
+    if (isAudioOnly) {
+        RenderAudioFromIMeta(note, accountViewModel, nav)
+        return
+    }
+
     LoadDecryptedContent(
         note,
         accountViewModel,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/VoiceTrack.kt

@@ -301,7 +301,7 @@ fun Event.getAudioMetaWithWaveform(): AudioMeta? {
     val audioMetas = imetas().map { AudioMeta.parse(it) }
     return audioMetas.firstOrNull { meta ->
         meta.waveform != null &&
-            meta.mimeType?.startsWith("audio/") == true
+            meta.mimeType?.startsWith("audio/") != false
     }
 }
 

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt

@@ -105,10 +105,12 @@ import com.vitorpamplona.quartz.nip01Core.signers.NostrSignerInternal
 import com.vitorpamplona.quartz.nip01Core.signers.SignerExceptions
 import com.vitorpamplona.quartz.nip01Core.tags.people.PubKeyReferenceTag
 import com.vitorpamplona.quartz.nip01Core.tags.people.isTaggedUser
+import com.vitorpamplona.quartz.nip01Core.tags.people.toPTag
 import com.vitorpamplona.quartz.nip03Timestamp.EmptyOtsResolverBuilder
 import com.vitorpamplona.quartz.nip04Dm.messages.PrivateDmEvent
 import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip10Notes.tags.markedETags
+import com.vitorpamplona.quartz.nip10Notes.tags.notify
 import com.vitorpamplona.quartz.nip10Notes.tags.prepareETagsAsReplyTo
 import com.vitorpamplona.quartz.nip17Dm.base.ChatroomKeyable
 import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
@@ -394,7 +396,7 @@ class AccountViewModel(
                 note.flow().author(),
                 note.flow().metadata.stateFlow,
                 note.flow().reports.stateFlow,
-            ) { hiddenUsers, followingUsers, autor, metadata, reports ->
+            ) { hiddenUsers, followingUsers, _, metadata, _ ->
                 emit(isNoteAcceptable(metadata.note, hiddenUsers, followingUsers.authors))
             }.onStart {
                 emit(
@@ -1015,11 +1017,11 @@ class AccountViewModel(
             LocalCache.findLatestModificationForNote(note)
         }
 
-    fun checkGetOrCreatePublicChatChannel(key: HexKey): PublicChatChannel? = LocalCache.getOrCreatePublicChatChannel(key)
+    fun checkGetOrCreatePublicChatChannel(key: HexKey): PublicChatChannel = LocalCache.getOrCreatePublicChatChannel(key)
 
-    fun checkGetOrCreateLiveActivityChannel(key: Address): LiveActivitiesChannel? = LocalCache.getOrCreateLiveChannel(key)
+    fun checkGetOrCreateLiveActivityChannel(key: Address): LiveActivitiesChannel = LocalCache.getOrCreateLiveChannel(key)
 
-    fun checkGetOrCreateEphemeralChatChannel(key: RoomId): EphemeralChatChannel? = LocalCache.getOrCreateEphemeralChannel(key)
+    fun checkGetOrCreateEphemeralChatChannel(key: RoomId): EphemeralChatChannel = LocalCache.getOrCreateEphemeralChannel(key)
 
     fun getPublicChatChannelIfExists(hex: HexKey) = LocalCache.getPublicChatChannelIfExists(hex)
 
@@ -1202,6 +1204,7 @@ class AccountViewModel(
                                 if (replyingTo != null) {
                                     val tags = prepareETagsAsReplyTo(replyingTo, null)
                                     markedETags(tags)
+                                    notify(replyingTo.toPTag())
                                 }
                                 // Add audio as IMeta attachment
                                 add(audioMeta.toIMetaArray())
@@ -1451,7 +1454,7 @@ class AccountViewModel(
             // First check if we have an actual response from the DVM in LocalCache
             val response =
                 LocalCache.notes.maxOrNullOf(
-                    filter = { key, note ->
+                    filter = { _, note ->
                         val noteEvent = note.event
                         noteEvent is NIP90ContentDiscoveryResponseEvent &&
                             noteEvent.pubKey == pubkeyHex &&
@@ -1560,8 +1563,6 @@ class AccountViewModel(
         }
     }
 
-    fun findUsersStartingWithSync(prefix: String) = LocalCache.findUsersStartingWith(prefix, account)
-
     fun convertAccounts(loggedInAccounts: List<AccountInfo>?): Set<HexKey> =
         loggedInAccounts
             ?.mapNotNull {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/ShortNotePostViewModel.kt

@@ -582,6 +582,18 @@ open class ShortNotePostViewModel :
                     }
                     markedETags(tags)
                 }
+                pTags?.let { userList ->
+                    val tags =
+                        userList.map {
+                            val tag = it.toPTag()
+                            if (tag.relayHint == null) {
+                                tag.copy(relayHint = LocalCache.relayHints.hintsForKey(it.pubkeyHex).firstOrNull())
+                            } else {
+                                tag
+                            }
+                        }
+                    notify(tags)
+                }
                 // Add audio as IMeta attachment
                 add(audioMeta.toIMetaArray())
             }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/VoiceReplyViewModel.kt

@@ -38,8 +38,10 @@ import com.vitorpamplona.amethyst.ui.actions.uploads.RecordingResult
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.stringRes
 import com.vitorpamplona.quartz.nip01Core.core.Event
+import com.vitorpamplona.quartz.nip01Core.tags.people.toPTag
 import com.vitorpamplona.quartz.nip10Notes.TextNoteEvent
 import com.vitorpamplona.quartz.nip10Notes.tags.markedETags
+import com.vitorpamplona.quartz.nip10Notes.tags.notify
 import com.vitorpamplona.quartz.nip10Notes.tags.prepareETagsAsReplyTo
 import com.vitorpamplona.quartz.nipA0VoiceMessages.AudioMeta
 import com.vitorpamplona.quartz.nipA0VoiceMessages.BaseVoiceEvent
@@ -232,6 +234,7 @@ class VoiceReplyViewModel : ViewModel() {
                                     if (replyingTo != null) {
                                         val tags = prepareETagsAsReplyTo(replyingTo, null)
                                         markedETags(tags)
+                                        notify(replyingTo.toPTag())
                                     }
                                     // Add audio as IMeta attachment
                                     add(audioMeta.toIMetaArray())