diff --git a/app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt b/app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt
index f3045fdbf..da8ba2f09 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt
@@ -208,7 +208,7 @@ class Account(
     val saveable: AccountLiveData = AccountLiveData(this)
 
     @Immutable
-    data class LiveFollowLists(
+    class LiveFollowLists(
         val users: ImmutableSet<String> = persistentSetOf(),
         val hashtags: ImmutableSet<String> = persistentSetOf(),
         val geotags: ImmutableSet<String> = persistentSetOf(),
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/model/Channel.kt b/app/src/main/java/com/vitorpamplona/amethyst/model/Channel.kt
index 18865dbb4..0c127556e 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/model/Channel.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/model/Channel.kt
@@ -108,10 +108,9 @@ class LiveActivitiesChannel(val address: ATag) : Channel(address.toTag()) {
 @Stable
 abstract class Channel(val idHex: String) {
     var creator: User? = null
-
     var updatedMetadataAt: Long = 0
-
     val notes = LargeCache<HexKey, Note>()
+    var lastNoteCreatedAt: Long = 0
 
     open fun id() = Hex.decode(idHex)
 
@@ -147,6 +146,10 @@ abstract class Channel(val idHex: String) {
 
     fun addNote(note: Note) {
         notes.put(note.idHex, note)
+
+        if ((note.createdAt() ?: 0) > lastNoteCreatedAt) {
+            lastNoteCreatedAt = note.createdAt() ?: 0
+        }
     }
 
     fun removeNote(note: Note) {
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt b/app/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt
index 1d4a08760..21f48c2c4 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt
@@ -130,7 +130,7 @@ object LocalCache {
     val notes = LargeCache<HexKey, Note>()
     val addressables = LargeCache<String, AddressableNote>()
     val drafts = ConcurrentHashMap<String, MutableList<Drafts>>()
-    val channels = ConcurrentHashMap<HexKey, Channel>()
+    val channels = LargeCache<HexKey, Channel>()
     val awaitingPaymentRequests = ConcurrentHashMap<HexKey, Pair<Note?, (LnZapPaymentResponseEvent) -> Unit>>(10)
 
     fun checkGetOrCreateUser(key: String): User? {
@@ -193,7 +193,7 @@ object LocalCache {
     }
 
     fun getChannelIfExists(key: String): Channel? {
-        return channels[key]
+        return channels.get(key)
     }
 
     fun checkGetOrCreateNote(key: String): Note? {
@@ -246,15 +246,24 @@ object LocalCache {
         }
     }
 
+    fun getOrCreateChannel(
+        key: String,
+        channelFactory: (String) -> Channel,
+    ): Channel {
+        checkNotInMainThread()
+
+        return channels.getOrCreate(key, channelFactory)
+    }
+
     fun checkGetOrCreateChannel(key: String): Channel? {
         checkNotInMainThread()
 
         if (isValidHex(key)) {
-            return getOrCreateChannel(key) { PublicChatChannel(key) }
+            return channels.getOrCreate(key) { PublicChatChannel(key) }
         }
         val aTag = ATag.parse(key, null)
         if (aTag != null) {
-            return getOrCreateChannel(aTag.toTag()) { LiveActivitiesChannel(aTag) }
+            return channels.getOrCreate(aTag.toTag()) { LiveActivitiesChannel(aTag) }
         }
         return null
     }
@@ -266,19 +275,6 @@ object LocalCache {
         return HexValidator.isHex(key)
     }
 
-    fun getOrCreateChannel(
-        key: String,
-        channelFactory: (String) -> Channel,
-    ): Channel {
-        checkNotInMainThread()
-
-        return channels[key]
-            ?: run {
-                val newObject = channelFactory(key)
-                channels.putIfAbsent(key, newObject) ?: newObject
-            }
-    }
-
     fun checkGetOrCreateAddressableNote(key: String): AddressableNote? {
         return try {
             val addr = ATag.parse(key, null) // relay doesn't matter for the index.
@@ -970,10 +966,10 @@ object LocalCache {
                         masterNote.removeReport(deleteNote)
                     }
 
-                    deleteNote.channelHex()?.let { channels[it]?.removeNote(deleteNote) }
+                    deleteNote.channelHex()?.let { getChannelIfExists(it)?.removeNote(deleteNote) }
 
                     (deleteNote.event as? LiveActivitiesChatMessageEvent)?.activity()?.let {
-                        channels[it.toTag()]?.removeNote(deleteNote)
+                        getChannelIfExists(it.toTag())?.removeNote(deleteNote)
                     }
 
                     if (deleteNote.event is PrivateDmEvent) {
@@ -1710,14 +1706,14 @@ object LocalCache {
         checkNotInMainThread()
 
         val key = decodeEventIdAsHexOrNull(text)
-        if (key != null && channels[key] != null) {
-            return listOfNotNull(channels[key])
+        if (key != null && getChannelIfExists(key) != null) {
+            return listOfNotNull(getChannelIfExists(key))
         }
 
-        return channels.values.filter {
-            it.anyNameStartsWith(text) ||
-                it.idHex.startsWith(text, true) ||
-                it.idNote().startsWith(text, true)
+        return channels.filter { _, channel ->
+            channel.anyNameStartsWith(text) ||
+                channel.idHex.startsWith(text, true) ||
+                channel.idNote().startsWith(text, true)
         }
     }
 
@@ -1796,8 +1792,8 @@ object LocalCache {
     fun pruneOldAndHiddenMessages(account: Account) {
         checkNotInMainThread()
 
-        channels.forEach { it ->
-            val toBeRemoved = it.value.pruneOldAndHiddenMessages(account)
+        channels.forEach { _, channel ->
+            val toBeRemoved = channel.pruneOldAndHiddenMessages(account)
 
             val childrenToBeRemoved = mutableListOf<Note>()
 
@@ -1809,9 +1805,9 @@ object LocalCache {
 
             removeFromCache(childrenToBeRemoved)
 
-            if (toBeRemoved.size > 100 || it.value.notes.size() > 100) {
+            if (toBeRemoved.size > 100 || channel.notes.size() > 100) {
                 println(
-                    "PRUNE: ${toBeRemoved.size} messages removed from ${it.value.toBestDisplayName()}. ${it.value.notes.size()} kept",
+                    "PRUNE: ${toBeRemoved.size} messages removed from ${channel.toBestDisplayName()}. ${channel.notes.size()} kept",
                 )
             }
         }
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/service/NostrDiscoveryDataSource.kt b/app/src/main/java/com/vitorpamplona/amethyst/service/NostrDiscoveryDataSource.kt
index 2a94fd7aa..ba9f22348 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/service/NostrDiscoveryDataSource.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/service/NostrDiscoveryDataSource.kt
@@ -178,9 +178,8 @@ object NostrDiscoveryDataSource : NostrDataSource("DiscoveryFeed") {
                 filter =
                     JsonFilter(
                         authors = follows,
-                        kinds =
-                            listOf(ChannelCreateEvent.KIND, ChannelMetadataEvent.KIND, ChannelMessageEvent.KIND),
-                        limit = 300,
+                        kinds = listOf(ChannelMessageEvent.KIND),
+                        limit = 500,
                         since =
                             latestEOSEs.users[account.userProfile()]
                                 ?.followList
@@ -194,7 +193,7 @@ object NostrDiscoveryDataSource : NostrDataSource("DiscoveryFeed") {
                     filter =
                         JsonFilter(
                             ids = followChats,
-                            kinds = listOf(ChannelCreateEvent.KIND),
+                            kinds = listOf(ChannelCreateEvent.KIND, ChannelMessageEvent.KIND),
                             limit = 300,
                             since =
                                 latestEOSEs.users[account.userProfile()]
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverChatFeedFilter.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverChatFeedFilter.kt
index 2a58fb1f5..0eabe3422 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverChatFeedFilter.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverChatFeedFilter.kt
@@ -23,7 +23,7 @@ package com.vitorpamplona.amethyst.ui.dal
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
-import com.vitorpamplona.amethyst.model.ParticipantListBuilder
+import com.vitorpamplona.amethyst.model.PublicChatChannel
 import com.vitorpamplona.quartz.events.ChannelCreateEvent
 import com.vitorpamplona.quartz.events.IsInPublicChatChannel
 import com.vitorpamplona.quartz.events.MuteListEvent
@@ -42,12 +42,25 @@ open class DiscoverChatFeedFilter(val account: Account) : AdditiveFeedFilter<Not
     }
 
     override fun feed(): List<Note> {
+        val params = buildFilterParams(account)
+
         val allChannelNotes =
-            LocalCache.channels.values.mapNotNull { LocalCache.getNoteIfExists(it.idHex) }
+            LocalCache.channels.mapNotNullIntoSet { _, channel ->
+                if (channel is PublicChatChannel) {
+                    val note = LocalCache.getNoteIfExists(channel.idHex)
+                    val noteEvent = note?.event
 
-        val notes = innerApplyFilter(allChannelNotes)
+                    if (noteEvent == null || params.match(noteEvent)) {
+                        note
+                    } else {
+                        null
+                    }
+                } else {
+                    null
+                }
+            }
 
-        return sort(notes)
+        return sort(allChannelNotes)
     }
 
     override fun applyFilter(collection: Set<Note>): Set<Note> {
@@ -70,11 +83,21 @@ open class DiscoverChatFeedFilter(val account: Account) : AdditiveFeedFilter<Not
             // note event here will never be null
             val noteEvent = note.event
             if (noteEvent is ChannelCreateEvent && params.match(noteEvent)) {
-                note
+                if ((LocalCache.getChannelIfExists(noteEvent.id)?.notes?.size() ?: 0) > 0) {
+                    note
+                } else {
+                    null
+                }
             } else if (noteEvent is IsInPublicChatChannel) {
                 val channel = noteEvent.channel()?.let { LocalCache.checkGetOrCreateNote(it) }
-                if (channel != null && (channel.event == null || params.match(channel.event))) {
-                    channel
+                if (channel != null &&
+                    (channel.event == null || (channel.event is ChannelCreateEvent && params.match(channel.event)))
+                ) {
+                    if ((LocalCache.getChannelIfExists(channel.idHex)?.notes?.size() ?: 0) > 0) {
+                        channel
+                    } else {
+                        null
+                    }
                 } else {
                     null
                 }
@@ -85,17 +108,15 @@ open class DiscoverChatFeedFilter(val account: Account) : AdditiveFeedFilter<Not
     }
 
     override fun sort(collection: Set<Note>): List<Note> {
-        val followingKeySet =
-            account.liveDiscoveryFollowLists.value?.users ?: account.liveKind3Follows.value.users
-
-        val counter = ParticipantListBuilder()
-        val participantCounts =
-            collection.associate { it to counter.countFollowsThatParticipateOn(it, followingKeySet) }
+        val lastNote =
+            collection.associateWith { note ->
+                LocalCache.getChannelIfExists(note.idHex)?.lastNoteCreatedAt ?: 0
+            }
 
         return collection
             .sortedWith(
                 compareBy(
-                    { participantCounts[it] },
+                    { lastNote[it] },
                     { it.createdAt() },
                     { it.idHex },
                 ),
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverCommunityFeedFilter.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverCommunityFeedFilter.kt
index 163905fad..1e321a7a0 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverCommunityFeedFilter.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverCommunityFeedFilter.kt
@@ -23,7 +23,6 @@ package com.vitorpamplona.amethyst.ui.dal
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
-import com.vitorpamplona.amethyst.model.ParticipantListBuilder
 import com.vitorpamplona.quartz.encoders.ATag
 import com.vitorpamplona.quartz.events.CommunityDefinitionEvent
 import com.vitorpamplona.quartz.events.CommunityPostApprovalEvent
@@ -112,21 +111,15 @@ open class DiscoverCommunityFeedFilter(val account: Account) : AdditiveFeedFilte
     ) = aTag != null && aTag.kind == CommunityDefinitionEvent.KIND && params.match(aTag)
 
     override fun sort(collection: Set<Note>): List<Note> {
-        val followingKeySet =
-            account.liveDiscoveryFollowLists.value?.users ?: account.liveKind3Follows.value.users
-
-        val counter = ParticipantListBuilder()
-        val participantCounts =
-            collection.associate { it to counter.countFollowsThatParticipateOn(it, followingKeySet) }
-
-        val allParticipants =
-            collection.associate { it to counter.countFollowsThatParticipateOn(it, null) }
+        val lastNote =
+            collection.associateWith { note ->
+                note.boosts.maxOfOrNull { it.createdAt() ?: 0 } ?: 0
+            }
 
         return collection
             .sortedWith(
                 compareBy(
-                    { participantCounts[it] },
-                    { allParticipants[it] },
+                    { lastNote[it] },
                     { it.createdAt() },
                     { it.idHex },
                 ),
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverLiveFeedFilter.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverLiveFeedFilter.kt
index 30aa19176..ebce2500a 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverLiveFeedFilter.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/dal/DiscoverLiveFeedFilter.kt
@@ -48,8 +48,8 @@ open class DiscoverLiveFeedFilter(
     }
 
     override fun feed(): List<Note> {
-        val allChannelNotes = LocalCache.channels.values.mapNotNull { LocalCache.getNoteIfExists(it.idHex) }
-        val allMessageNotes = LocalCache.channels.values.map { it.notes.filter { key, it -> it.event is LiveActivitiesEvent } }.flatten()
+        val allChannelNotes = LocalCache.channels.mapNotNull { _, channel -> LocalCache.getNoteIfExists(channel.idHex) }
+        val allMessageNotes = LocalCache.channels.map { _, channel -> channel.notes.filter { key, it -> it.event is LiveActivitiesEvent } }.flatten()
 
         val notes = innerApplyFilter(allChannelNotes + allMessageNotes)
 
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DiscoverScreen.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DiscoverScreen.kt
index a6d4c2b12..e6bf7d8d2 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DiscoverScreen.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DiscoverScreen.kt
@@ -316,7 +316,7 @@ fun WatchAccountForDiscoveryScreen(
     discoveryChatFeedViewModel: NostrDiscoverChatFeedViewModel,
     accountViewModel: AccountViewModel,
 ) {
-    val listState by accountViewModel.account.liveStoriesFollowLists.collectAsStateWithLifecycle()
+    val listState by accountViewModel.account.liveDiscoveryFollowLists.collectAsStateWithLifecycle()
 
     LaunchedEffect(accountViewModel, listState) {
         NostrDiscoveryDataSource.resetFilters()
@@ -348,7 +348,7 @@ private fun DiscoverFeedLoaded(
                 ChannelCardCompose(
                     baseNote = item,
                     routeForLastRead = routeForLastRead,
-                    modifier = Modifier,
+                    modifier = Modifier.fillMaxWidth(),
                     forceEventKind = forceEventKind,
                     accountViewModel = accountViewModel,
                     nav = nav,
diff --git a/app/src/main/res/values-es-rES/strings.xml b/app/src/main/res/values-es-rES/strings.xml
index 67effe4b5..1f72f897c 100644
--- a/app/src/main/res/values-es-rES/strings.xml
+++ b/app/src/main/res/values-es-rES/strings.xml
@@ -441,6 +441,8 @@
     <string name="connectivity_type_always">Siempre</string>
     <string name="connectivity_type_wifi_only">Solo Wi-Fi</string>
     <string name="connectivity_type_never">Nunca</string>
+    <string name="ui_feature_set_type_complete">Completo</string>
+    <string name="ui_feature_set_type_simplified">Simplificado</string>
     <string name="system">Sistema</string>
     <string name="light">Claro</string>
     <string name="dark">Oscuro</string>
@@ -452,6 +454,8 @@
     <string name="automatically_show_url_preview">Vista previa de URL</string>
     <string name="automatically_hide_nav_bars">Desplazamiento inmersivo</string>
     <string name="automatically_hide_nav_bars_description">Ocultar barras de navegación al desplazarse</string>
+    <string name="ui_style">Modo de interfaz</string>
+    <string name="ui_style_description">Elegir el estilo de publicación</string>
     <string name="load_image">Cargar imagen</string>
     <string name="spamming_users">Spammers</string>
     <string name="muted_button">Silenciado. Hacer clic para reactivar el sonido.</string>
diff --git a/quartz/src/androidTest/java/com/vitorpamplona/quartz/NIP44v2Test.kt b/quartz/src/androidTest/java/com/vitorpamplona/quartz/NIP44v2Test.kt
index 60740cfce..c146d5ca3 100644
--- a/quartz/src/androidTest/java/com/vitorpamplona/quartz/NIP44v2Test.kt
+++ b/quartz/src/androidTest/java/com/vitorpamplona/quartz/NIP44v2Test.kt
@@ -38,16 +38,16 @@ import java.security.MessageDigest
 import java.security.SecureRandom
 
 @RunWith(AndroidJUnit4::class)
-public class NIP44v2Test {
-    val vectors: VectorFile =
+class NIP44v2Test {
+    private val vectors: VectorFile =
         jacksonObjectMapper()
             .readValue(
                 getInstrumentation().context.assets.open("nip44.vectors.json"),
                 VectorFile::class.java,
             )
 
-    val random = SecureRandom()
-    val nip44v2 = Nip44v2(Secp256k1.get(), random)
+    private val random = SecureRandom()
+    private val nip44v2 = Nip44v2(Secp256k1.get(), random)
 
     @Test
     fun conversationKeyTest() {
@@ -71,21 +71,25 @@ public class NIP44v2Test {
     fun encryptDecryptTest() {
         for (v in vectors.v2?.valid?.encryptDecrypt!!) {
             val pub2 = com.vitorpamplona.quartz.crypto.KeyPair(v.sec2!!.hexToByteArray())
-            val conversationKey = nip44v2.getConversationKey(v.sec1!!.hexToByteArray(), pub2.pubKey)
-            assertEquals(v.conversationKey, conversationKey.toHexKey())
+            val conversationKey1 = nip44v2.getConversationKey(v.sec1!!.hexToByteArray(), pub2.pubKey)
+            assertEquals(v.conversationKey, conversationKey1.toHexKey())
 
             val ciphertext =
                 nip44v2
                     .encryptWithNonce(
                         v.plaintext!!,
-                        conversationKey,
+                        conversationKey1,
                         v.nonce!!.hexToByteArray(),
                     )
                     .encodePayload()
 
             assertEquals(v.payload, ciphertext)
 
-            val decrypted = nip44v2.decrypt(v.payload!!, conversationKey)
+            val pub1 = com.vitorpamplona.quartz.crypto.KeyPair(v.sec1.hexToByteArray())
+            val conversationKey2 = nip44v2.getConversationKey(v.sec2.hexToByteArray(), pub1.pubKey)
+            assertEquals(v.conversationKey, conversationKey2.toHexKey())
+
+            val decrypted = nip44v2.decrypt(v.payload!!, conversationKey2)
             assertEquals(v.plaintext, decrypted)
         }
     }
@@ -116,7 +120,7 @@ public class NIP44v2Test {
     }
 
     @Test
-    fun invalidMessageLenghts() {
+    fun invalidMessageLengths() {
         for (v in vectors.v2?.invalid?.encryptMsgLengths!!) {
             val key = ByteArray(32)
             random.nextBytes(key)
@@ -154,7 +158,7 @@ public class NIP44v2Test {
         }
     }
 
-    fun sha256Hex(data: ByteArray): String {
+    private fun sha256Hex(data: ByteArray): String {
         // Creates a new buffer every time
         return MessageDigest.getInstance("SHA-256").digest(data).toHexKey()
     }