feat(meetingrooms): split kind:30313 into its own drawer screen

Nests (kind:30312) and Meetings (kind:30313) were sharing one drawer
entry / one feed; the only thing they have in common is being NIP-53
events. They have different lifecycles (audio rooms vs scheduled
meetings) and different status enums (open/private/closed/planned vs
live/planned/ended). Mixing them under the Nests label was confusing.

Split:

- MeetingRoomsFeedFilter (new) — narrows to MeetingRoomEvent (30313),
  with title-must-be-non-blank gate (mirrors the EGG-01-style minimum-
  fields rule the Nests feed applies). Sort by status (LIVE > PLANNED
  > ENDED), then participants among follows, then `starts` / created.
- NestsFeedFilter (existing) — narrowed to MeetingSpaceEvent (30312)
  only. Drops the dual-kind branches in `innerApplyFilter` and the
  parallel sub-room enum in `convertStatusToOrder`. Same EGG-01 gate
  (room/status/service/endpoint).

UI:

- New MeetingRoomsScreen / MeetingRoomsFeedLoaded / MeetingRoomsTopBar.
  Read-only — the app doesn't compose kind-30313 events locally; tap
  routes a card to the standard thread view via `routeFor`.
- Reuses the existing in-feed renderer
  (`note.types.RenderMeetingRoomEvent`) for visual consistency
  with the Note thread surface.
- Mounts NestsFilterAssemblerSubscription so the wire side stays a
  single REQ regardless of which screen the user opens first
  (`makeLiveActivitiesFilter` already covers 30311/30312/30313/1311
  in one filter).

Wiring:

- Route.MeetingRooms → MeetingRoomsScreen in AppNavigation.
- NavBarItem.MEETING_ROOMS in the catalog (Groups icon, label
  "Meeting Rooms"). Same isDebug gate as NESTS while the surface is
  still in development.
- meetingRoomsFeed in AccountFeedContentStates (mirroring nestsFeed
  for updateFeedWith / deleteFromFeed propagation).
- ScrollStateKeys.MEETING_ROOMS_SCREEN.
- New string `meeting_rooms` ("Meeting Rooms").

https://claude.ai/code/session_01RDpuki4t8StSg1CZcXnV5b

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/feeds/RememberForeverStates.kt

@@ -68,6 +68,7 @@ object ScrollStateKeys {
     const val FOLLOW_PACKS_SCREEN = "FollowPacksFeed"
     const val LIVE_STREAMS_SCREEN = "LiveStreamsFeed"
     const val NESTS_SCREEN = "NestsFeed"
+    const val MEETING_ROOMS_SCREEN = "MeetingRoomsFeed"
     const val LONGS_SCREEN = "LongsFeed"
     const val ARTICLES_SCREEN = "ArticlesFeed"
 

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppNavigation.kt

@@ -127,6 +127,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.lists.list.metadata.PeopleL
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.lists.memberEdit.FollowListAndPackAndUserScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.livestreams.LiveStreamsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.longs.LongsScreen
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms.MeetingRoomsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.nests.NestsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.newUser.ImportFollowListPickFollowsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.newUser.ImportFollowListSelectUserScreen
@@ -246,6 +247,7 @@ fun BuildNavigation(
         composableFromEnd<Route.FollowPacks> { FollowPacksScreen(accountViewModel, nav) }
         composableFromEnd<Route.LiveStreams> { LiveStreamsScreen(accountViewModel, nav) }
         composableFromEnd<Route.Nests> { NestsScreen(accountViewModel, nav) }
+        composableFromEnd<Route.MeetingRooms> { MeetingRoomsScreen(accountViewModel, nav) }
         composableFromEnd<Route.Longs> { LongsScreen(accountViewModel, nav) }
         composableFromEnd<Route.Articles> { ArticlesScreen(accountViewModel, nav) }
         composableFromEnd<Route.NewHlsVideo> { NewHlsVideoScreen(accountViewModel, nav) }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/bottombars/NavBarItem.kt

@@ -55,6 +55,7 @@ enum class NavBarItem {
     FOLLOW_PACKS,
     LIVE_STREAMS,
     NESTS,
+    MEETING_ROOMS,
     LONGS,
     POLLS,
     BADGES,
@@ -219,6 +220,13 @@ val NavBarCatalog: Map<NavBarItem, NavBarItemDef> =
                 icon = MaterialSymbols.Mic,
                 resolveRoute = { Route.Nests },
             ),
+        NavBarItem.MEETING_ROOMS to
+            NavBarItemDef(
+                id = NavBarItem.MEETING_ROOMS,
+                labelRes = R.string.meeting_rooms,
+                icon = MaterialSymbols.Groups,
+                resolveRoute = { Route.MeetingRooms },
+            ),
         NavBarItem.LONGS to
             NavBarItemDef(
                 id = NavBarItem.LONGS,
@@ -306,6 +314,7 @@ val DrawerFeedsItems: List<NavBarItem> =
         NavBarItem.FOLLOW_PACKS,
         NavBarItem.LIVE_STREAMS,
         if (isDebug) NavBarItem.NESTS else null,
+        if (isDebug) NavBarItem.MEETING_ROOMS else null,
         NavBarItem.LONGS,
         NavBarItem.POLLS,
         NavBarItem.BADGES,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/routes/Routes.kt

@@ -91,6 +91,8 @@ sealed class Route {
 
     @Serializable object Nests : Route()
 
+    @Serializable object MeetingRooms : Route()
+
     @Serializable object Longs : Route()
 
     @Serializable object Articles : Route()

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

@@ -47,6 +47,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal.HomeLiveFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal.HomeNewThreadFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.livestreams.dal.LiveStreamsFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.longs.dal.LongsFeedFilter
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms.dal.MeetingRoomsFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.nests.dal.NestsFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.CardFeedContentState
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.NotificationSummaryState
@@ -102,6 +103,7 @@ class AccountFeedContentStates(
     val followPacksFeed = FeedContentState(FollowPacksFeedFilter(account), scope, LocalCache)
     val liveStreamsFeed = FeedContentState(LiveStreamsFeedFilter(account), scope, LocalCache)
     val nestsFeed = FeedContentState(NestsFeedFilter(account), scope, LocalCache)
+    val meetingRoomsFeed = FeedContentState(MeetingRoomsFeedFilter(account), scope, LocalCache)
     val longsFeed = FeedContentState(LongsFeedFilter(account), scope, LocalCache)
     val articlesFeed = FeedContentState(ArticlesFeedFilter(account), scope, LocalCache)
 
@@ -169,6 +171,7 @@ class AccountFeedContentStates(
         followPacksFeed.updateFeedWith(newNotes)
         liveStreamsFeed.updateFeedWith(newNotes)
         nestsFeed.updateFeedWith(newNotes)
+        meetingRoomsFeed.updateFeedWith(newNotes)
         longsFeed.updateFeedWith(newNotes)
         articlesFeed.updateFeedWith(newNotes)
 
@@ -216,6 +219,7 @@ class AccountFeedContentStates(
         followPacksFeed.deleteFromFeed(newNotes)
         liveStreamsFeed.deleteFromFeed(newNotes)
         nestsFeed.deleteFromFeed(newNotes)
+        meetingRoomsFeed.deleteFromFeed(newNotes)
         longsFeed.deleteFromFeed(newNotes)
         articlesFeed.deleteFromFeed(newNotes)
 

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

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms
+
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.vitorpamplona.amethyst.commons.ui.feeds.FeedState
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.ui.layouts.rememberFeedContentPadding
+import com.vitorpamplona.amethyst.ui.navigation.navs.INav
+import com.vitorpamplona.amethyst.ui.navigation.routes.routeFor
+import com.vitorpamplona.amethyst.ui.note.types.RenderMeetingRoomEvent
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.theme.DividerThickness
+import com.vitorpamplona.amethyst.ui.theme.FeedPadding
+import com.vitorpamplona.amethyst.ui.theme.StdPadding
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+
+/**
+ * Read-only list of NIP-53 kind 30313 [MeetingRoomEvent]s. Each row
+ * uses the existing [RenderMeetingRoomEvent] thumbnail composable
+ * for visual parity with the in-feed render; tapping a row opens
+ * the standard thread view (`routeFor(note, account)`) so the user
+ * can see the meeting's full details, participants, and any
+ * `streaming` URL.
+ */
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+fun MeetingRoomsFeedLoaded(
+    loaded: FeedState.Loaded,
+    listState: LazyListState,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    val items by loaded.feed.collectAsStateWithLifecycle()
+
+    LazyColumn(
+        contentPadding = rememberFeedContentPadding(FeedPadding),
+        state = listState,
+    ) {
+        itemsIndexed(items.list, key = { _, item -> item.idHex }) { _, item ->
+            Row(Modifier.fillMaxWidth().animateItem()) {
+                MeetingRoomFeedCard(
+                    baseNote = item,
+                    modifier = Modifier.fillMaxWidth(),
+                    accountViewModel = accountViewModel,
+                    nav = nav,
+                )
+            }
+
+            HorizontalDivider(
+                thickness = DividerThickness,
+            )
+        }
+    }
+}
+
+@Composable
+private fun MeetingRoomFeedCard(
+    baseNote: Note,
+    modifier: Modifier,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    if (baseNote.event !is MeetingRoomEvent) return
+
+    Column(
+        modifier =
+            modifier.clickable {
+                nav.nav { routeFor(baseNote, accountViewModel.account) }
+            },
+    ) {
+        Column(StdPadding) {
+            RenderMeetingRoomEvent(baseNote, accountViewModel, nav)
+        }
+    }
+}

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

@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.vitorpamplona.amethyst.commons.ui.feeds.FeedContentState
+import com.vitorpamplona.amethyst.ui.feeds.RefresheableBox
+import com.vitorpamplona.amethyst.ui.feeds.RenderFeedContentState
+import com.vitorpamplona.amethyst.ui.feeds.SaveableFeedContentState
+import com.vitorpamplona.amethyst.ui.feeds.ScrollStateKeys
+import com.vitorpamplona.amethyst.ui.feeds.WatchLifecycleAndUpdateModel
+import com.vitorpamplona.amethyst.ui.layouts.DisappearingScaffold
+import com.vitorpamplona.amethyst.ui.navigation.bottombars.AppBottomBar
+import com.vitorpamplona.amethyst.ui.navigation.navs.INav
+import com.vitorpamplona.amethyst.ui.navigation.routes.Route
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.nests.datasource.NestsFilterAssemblerSubscription
+
+/**
+ * Drawer screen for NIP-53 kind 30313 (Meeting). Reads from the
+ * `meetingRoomsFeed` content state which scans
+ * `LocalCache.liveChatChannels` for `MeetingRoomEvent`s; the wire
+ * subscription is the same `makeLiveActivitiesFilter` the Nests
+ * screen uses (it requests kinds 30311/30312/30313/1311 in one
+ * REQ), so mounting the `NestsFilterAssemblerSubscription` here
+ * keeps wire traffic identical whichever screen the user lands
+ * on first.
+ *
+ * Read-only list — the app doesn't compose kind-30313 events
+ * locally. The per-row CTA (Join, recording link, etc.) lives
+ * inside [com.vitorpamplona.amethyst.ui.note.types.RenderMeetingRoomEvent].
+ */
+@Composable
+fun MeetingRoomsScreen(
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    MeetingRoomsScreen(
+        meetingRoomsFeedContentState = accountViewModel.feedStates.meetingRoomsFeed,
+        accountViewModel = accountViewModel,
+        nav = nav,
+    )
+}
+
+@Composable
+fun MeetingRoomsScreen(
+    meetingRoomsFeedContentState: FeedContentState,
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    WatchLifecycleAndUpdateModel(meetingRoomsFeedContentState)
+    WatchAccountForMeetingRoomsScreen(meetingRoomsFeedState = meetingRoomsFeedContentState, accountViewModel = accountViewModel)
+    NestsFilterAssemblerSubscription(accountViewModel)
+
+    DisappearingScaffold(
+        isInvertedLayout = false,
+        topBar = {
+            MeetingRoomsTopBar(accountViewModel, nav)
+        },
+        bottomBar = {
+            AppBottomBar(Route.MeetingRooms, accountViewModel) { route ->
+                if (route == Route.MeetingRooms) {
+                    meetingRoomsFeedContentState.sendToTop()
+                } else {
+                    nav.navBottomBar(route)
+                }
+            }
+        },
+        accountViewModel = accountViewModel,
+    ) {
+        RefresheableBox(meetingRoomsFeedContentState, true) {
+            SaveableFeedContentState(meetingRoomsFeedContentState, scrollStateKey = ScrollStateKeys.MEETING_ROOMS_SCREEN) { listState ->
+                RenderFeedContentState(
+                    feedContentState = meetingRoomsFeedContentState,
+                    accountViewModel = accountViewModel,
+                    listState = listState,
+                    nav = nav,
+                    routeForLastRead = "MeetingRoomsFeed",
+                    onLoaded = { loaded ->
+                        MeetingRoomsFeedLoaded(
+                            loaded = loaded,
+                            listState = listState,
+                            accountViewModel = accountViewModel,
+                            nav = nav,
+                        )
+                    },
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun WatchAccountForMeetingRoomsScreen(
+    meetingRoomsFeedState: FeedContentState,
+    accountViewModel: AccountViewModel,
+) {
+    val listState by accountViewModel.account.liveLiveStreamsFollowLists.collectAsStateWithLifecycle()
+    // Use `by` to unwrap the StateFlow's value into the LaunchedEffect
+    // key — without it, the State<T> object is reference-stable across
+    // recompositions and the effect never re-fires when the user
+    // mutes someone, leaving the feed stale until a manual refresh.
+    val hiddenUsers by accountViewModel.account.hiddenUsers.flow
+        .collectAsStateWithLifecycle()
+
+    LaunchedEffect(accountViewModel, listState, hiddenUsers) {
+        meetingRoomsFeedState.checkKeysInvalidateDataAndSendToTop()
+    }
+}

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

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.model.TopFilter
+import com.vitorpamplona.amethyst.ui.navigation.navs.INav
+import com.vitorpamplona.amethyst.ui.navigation.topbars.FeedFilterSpinner
+import com.vitorpamplona.amethyst.ui.navigation.topbars.UserDrawerSearchTopBar
+import com.vitorpamplona.amethyst.ui.screen.FeedDefinition
+import com.vitorpamplona.amethyst.ui.screen.TopNavFilterState
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.stringRes
+
+@Composable
+fun MeetingRoomsTopBar(
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    UserDrawerSearchTopBar(accountViewModel, nav) {
+        val list by accountViewModel.account.settings.defaultLiveStreamsFollowList
+            .collectAsStateWithLifecycle()
+
+        MeetingRoomsTopNavFilterBar(
+            followListsModel = accountViewModel.feedStates.feedListOptions,
+            listName = list,
+            accountViewModel = accountViewModel,
+            onChange = accountViewModel.account.settings::changeDefaultLiveStreamsFollowList,
+        )
+    }
+}
+
+@Composable
+private fun MeetingRoomsTopNavFilterBar(
+    followListsModel: TopNavFilterState,
+    listName: TopFilter,
+    accountViewModel: AccountViewModel,
+    onChange: (FeedDefinition) -> Unit,
+) {
+    val allLists by followListsModel.kind3GlobalPeopleRoutes.collectAsStateWithLifecycle()
+
+    FeedFilterSpinner(
+        placeholderCode = listName,
+        explainer = stringRes(R.string.select_list_to_filter),
+        options = allLists,
+        onSelect = onChange,
+        accountViewModel = accountViewModel,
+    )
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/meetingrooms/dal/MeetingRoomsFeedFilter.kt

@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms.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.TopFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.allFollows.AllFollowsByOutboxTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.allFollows.AllFollowsByProxyTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.author.AuthorsByOutboxTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.author.AuthorsByProxyTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.community.SingleCommunityTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthorsByOutboxTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthorsByProxyTopNavFilter
+import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
+import com.vitorpamplona.amethyst.ui.dal.FilterByListParams
+import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
+import com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag
+
+/**
+ * Drawer feed for NIP-53 kind 30313 (Meeting). Pulls
+ * [MeetingRoomEvent]s out of `LocalCache.liveChatChannels` — which is
+ * the same backing store the Live Streams and Nests feeds walk —
+ * and presents them in their own drawer entry so the audio-rooms
+ * surface (kind 30312) doesn't mix scheduled meetings into its list.
+ *
+ * Required-field gate: a kind-30313 with a blank title is
+ * unrenderable, so it's skipped at the feed level — same UX rule
+ * the Nests feed applies to its own missing-fields case.
+ */
+class MeetingRoomsFeedFilter(
+    val account: Account,
+) : AdditiveFeedFilter<Note>() {
+    override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + followList().code
+
+    override fun limit() = 50
+
+    fun followList(): TopFilter = account.settings.defaultLiveStreamsFollowList.value
+
+    private fun TopFilter.isMuteList() = this is TopFilter.MuteList
+
+    private fun TopFilter.isBlockList() = this is TopFilter.PeopleList && this.address == account.blockPeopleList.getBlockListAddress()
+
+    private fun TopFilter.wantsToSeeNegativeStuff() = isMuteList() || isBlockList()
+
+    override fun showHiddenKey(): Boolean = followList().wantsToSeeNegativeStuff()
+
+    override fun feed(): List<Note> {
+        val allNotes = LocalCache.liveChatChannels.mapNotNull { _, channel -> LocalCache.getAddressableNoteIfExists(channel.address) }
+        return sort(innerApplyFilter(allNotes))
+    }
+
+    override fun applyFilter(newItems: Set<Note>): Set<Note> = innerApplyFilter(newItems)
+
+    private fun innerApplyFilter(collection: Collection<Note>): Set<Note> {
+        val filterParams =
+            FilterByListParams.create(
+                followLists = account.liveLiveStreamsFollowLists.value,
+                hiddenUsers = account.hiddenUsers.flow.value,
+            )
+
+        return collection.filterTo(HashSet()) {
+            val noteEvent = it.event as? MeetingRoomEvent ?: return@filterTo false
+            !noteEvent.title().isNullOrBlank() && filterParams.match(noteEvent, it.relays)
+        }
+    }
+
+    override fun sort(items: Set<Note>): List<Note> {
+        val topFilter = account.liveLiveStreamsFollowLists.value
+        val topFilterAuthors =
+            when (topFilter) {
+                is AuthorsByOutboxTopNavFilter -> topFilter.authors
+                is MutedAuthorsByOutboxTopNavFilter -> topFilter.authors
+                is AllFollowsByOutboxTopNavFilter -> topFilter.authors
+                is SingleCommunityTopNavFilter -> topFilter.authors
+                is AuthorsByProxyTopNavFilter -> topFilter.authors
+                is MutedAuthorsByProxyTopNavFilter -> topFilter.authors
+                is AllFollowsByProxyTopNavFilter -> topFilter.authors
+                else -> null
+            }
+
+        val followingKeySet = topFilterAuthors ?: account.kind3FollowList.flow.value.authors
+
+        val counter = ParticipantListBuilder()
+        val participantCounts = items.associate { it to counter.countFollowsThatParticipateOn(it, followingKeySet) }
+        val allParticipants = items.associate { it to counter.countFollowsThatParticipateOn(it, null) }
+
+        return items
+            .sortedWith(
+                compareBy(
+                    { convertStatusToOrder(it.event as? MeetingRoomEvent) },
+                    { participantCounts[it] },
+                    { allParticipants[it] },
+                    {
+                        when (val e = it.event) {
+                            is MeetingRoomEvent -> e.starts() ?: it.createdAt()
+                            else -> it.createdAt()
+                        }
+                    },
+                    { it.idHex },
+                ),
+            ).reversed()
+    }
+
+    private fun convertStatusToOrder(event: MeetingRoomEvent?): Int =
+        when (event?.status()) {
+            StatusTag.STATUS.LIVE -> 2
+            StatusTag.STATUS.PLANNED -> 1
+            StatusTag.STATUS.ENDED -> 0
+            else -> 0
+        }
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/dal/NestsFeedFilter.kt

@@ -34,16 +34,16 @@ import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthors
 import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthorsByProxyTopNavFilter
 import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
 import com.vitorpamplona.amethyst.ui.dal.FilterByListParams
-import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingRoomEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.MeetingSpaceEvent
 import com.vitorpamplona.quartz.nip53LiveActivities.meetingSpaces.tags.StatusTag
 
 /**
  * Drawer feed for NIP-53 kind 30312 (Interactive Rooms / audio spaces).
  *
- * Shares LocalCache.liveChatChannels with the Live Streams feed, but narrows
- * to MeetingSpaceEvent (30312) and MeetingRoomEvent (30313) so that the
- * Clubhouse-style audio-room surface is independent of video live streams.
+ * Shares LocalCache.liveChatChannels with the Live Streams feed, narrowed
+ * to MeetingSpaceEvent (30312) so the Clubhouse-style audio-room surface
+ * is independent of video live streams. Kind 30313 (NIP-53 meetings) lives
+ * in a sibling drawer entry — see [com.vitorpamplona.amethyst.ui.screen.loggedIn.meetingrooms.dal.MeetingRoomsFeedFilter].
  */
 class NestsFeedFilter(
     val account: Account,
@@ -77,20 +77,8 @@ class NestsFeedFilter(
             )
 
         return collection.filterTo(HashSet()) {
-            val noteEvent = it.event ?: return@filterTo false
-            when (noteEvent) {
-                is MeetingSpaceEvent -> {
-                    hasMinimumNestFields(noteEvent) && filterParams.match(noteEvent, it.relays)
-                }
-
-                is MeetingRoomEvent -> {
-                    hasMinimumSubRoomFields(noteEvent) && filterParams.match(noteEvent, it.relays)
-                }
-
-                else -> {
-                    false
-                }
-            }
+            val noteEvent = it.event as? MeetingSpaceEvent ?: return@filterTo false
+            hasMinimumNestFields(noteEvent) && filterParams.match(noteEvent, it.relays)
         }
     }
 
@@ -111,13 +99,6 @@ class NestsFeedFilter(
             !event.service().isNullOrBlank() &&
             !event.endpoint().isNullOrBlank()
 
-    /**
-     * Sub-room (kind:30313) gate. The interactive-room concept inside a
-     * meeting space needs at least a title to render meaningfully — a
-     * sub-room with no title is unrenderable in a list.
-     */
-    private fun hasMinimumSubRoomFields(event: MeetingRoomEvent): Boolean = !event.title().isNullOrBlank()
-
     override fun sort(items: Set<Note>): List<Note> {
         val topFilter = account.liveLiveStreamsFollowLists.value
         val topFilterAuthors =
@@ -141,44 +122,20 @@ class NestsFeedFilter(
         return items
             .sortedWith(
                 compareBy(
-                    { convertStatusToOrder(it.event) },
+                    { convertStatusToOrder(it.event as? MeetingSpaceEvent) },
                     { participantCounts[it] },
                     { allParticipants[it] },
-                    {
-                        when (val e = it.event) {
-                            is MeetingRoomEvent -> e.starts() ?: it.createdAt()
-                            else -> it.createdAt()
-                        }
-                    },
+                    { it.createdAt() },
                     { it.idHex },
                 ),
             ).reversed()
     }
 
-    private fun convertStatusToOrder(event: com.vitorpamplona.quartz.nip01Core.core.Event?): Int {
-        if (event == null) return 0
-        return when (event) {
-            is MeetingSpaceEvent -> {
-                when (event.status()) {
-                    StatusTag.STATUS.OPEN -> 2
-                    StatusTag.STATUS.PRIVATE -> 1
-                    StatusTag.STATUS.CLOSED -> 0
-                    else -> 0
-                }
-            }
-
-            is MeetingRoomEvent -> {
-                when (event.status()) {
-                    com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag.STATUS.LIVE -> 2
-                    com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag.STATUS.PLANNED -> 1
-                    com.vitorpamplona.quartz.nip53LiveActivities.streaming.tags.StatusTag.STATUS.ENDED -> 0
-                    else -> 0
-                }
-            }
-
-            else -> {
-                0
-            }
+    private fun convertStatusToOrder(event: MeetingSpaceEvent?): Int =
+        when (event?.status()) {
+            StatusTag.STATUS.OPEN -> 2
+            StatusTag.STATUS.PRIVATE -> 1
+            StatusTag.STATUS.CLOSED -> 0
+            else -> 0
         }
-    }
 }

amethyst/src/main/res/values/strings.xml

@@ -489,6 +489,7 @@
     <string name="follow_packs">Follow Packs</string>
     <string name="live_streams">Live Streams</string>
     <string name="nests">Nests</string>
+    <string name="meeting_rooms">Meeting Rooms</string>
     <string name="nest_stage">Stage</string>
     <string name="nest_audience">Audience</string>
     <string name="nest_raise_hand">Raise hand</string>