diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 012c48e..4660d0f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os:
-          - ubuntu-latest
+          - ubuntu-22.04
           - windows-latest
           - macos-latest
           - macos-13
@@ -59,11 +59,11 @@ jobs:
 
       - name: Zip artifacts
         run: |
-          chmod +x cove-ubuntu-latest/cove
+          chmod +x cove-ubuntu-22.04/cove
           chmod +x cove-windows-latest/cove.exe
           chmod +x cove-macos-latest/cove
           chmod +x cove-macos-13/cove
-          zip -jr "cove-$(cat cove-ubuntu-latest/host).zip"  cove-ubuntu-latest/cove
+          zip -jr "cove-$(cat cove-ubuntu-22.04/host).zip"  cove-ubuntu-22.04/cove
           zip -jr "cove-$(cat cove-windows-latest/host).zip" cove-windows-latest/cove.exe
           zip -jr "cove-$(cat cove-macos-latest/host).zip"   cove-macos-latest/cove
           zip -jr "cove-$(cat cove-macos-13/host).zip"       cove-macos-13/cove
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f06e21..3f9ce8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,21 @@ Procedure when bumping the version number:
 
 ## Unreleased
 
+### Changed
+
+- Display emoji user id hashes in the nick list
+- Compile linux binary with older glibc version
+
+## v0.9.3 - 2025-05-31
+
+### Added
+
+- Key bindings for emoji-based user id hashing
+
+### Fixed
+
+- `keys.rooms.action.connect_autojoin` connecting to non-autojoin rooms
+
 ## v0.9.2 - 2025-03-14
 
 ### Added
diff --git a/CONFIG.md b/CONFIG.md
index e537310..82a7242 100644
--- a/CONFIG.md
+++ b/CONFIG.md
@@ -537,6 +537,14 @@ Reply to message, inline if possible.
 
 Reply opposite to normal reply.
 
+### `keys.tree.action.toggle_nick_emoji`
+
+**Required:** yes  
+**Type:** key binding  
+**Default:** `"e"`
+
+Toggle agent id based nick emoji.
+
 ### `keys.tree.action.toggle_seen`
 
 **Required:** yes  
diff --git a/Cargo.lock b/Cargo.lock
index 157b640..2f45a5a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -322,7 +322,7 @@ checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 
 [[package]]
 name = "cove"
-version = "0.9.2"
+version = "0.9.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -350,7 +350,7 @@ dependencies = [
 
 [[package]]
 name = "cove-config"
-version = "0.9.2"
+version = "0.9.3"
 dependencies = [
  "cove-input",
  "cove-macro",
@@ -361,7 +361,7 @@ dependencies = [
 
 [[package]]
 name = "cove-input"
-version = "0.9.2"
+version = "0.9.3"
 dependencies = [
  "cove-macro",
  "crossterm",
@@ -375,7 +375,7 @@ dependencies = [
 
 [[package]]
 name = "cove-macro"
-version = "0.9.2"
+version = "0.9.3"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/Cargo.toml b/Cargo.toml
index 0fa473f..33f245f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ resolver = "3"
 members = ["cove", "cove-*"]
 
 [workspace.package]
-version = "0.9.2"
+version = "0.9.3"
 edition = "2024"
 
 [workspace.dependencies]
diff --git a/cove-config/src/keys.rs b/cove-config/src/keys.rs
index 8b5adeb..47c171c 100644
--- a/cove-config/src/keys.rs
+++ b/cove-config/src/keys.rs
@@ -104,6 +104,7 @@ default_bindings! {
         pub fn mark_older_seen => ["ctrl+s"];
         pub fn info => ["i"];
         pub fn links => ["I"];
+        pub fn toggle_nick_emoji => ["e"];
         pub fn increase_caesar => ["c"];
         pub fn decrease_caesar => ["C"];
     }
@@ -356,6 +357,9 @@ pub struct TreeAction {
     /// List links found in message.
     #[serde(default = "default::tree_action::links")]
     pub links: KeyBinding,
+    /// Toggle agent id based nick emoji.
+    #[serde(default = "default::tree_action::toggle_nick_emoji")]
+    pub toggle_nick_emoji: KeyBinding,
     /// Increase caesar cipher rotation.
     #[serde(default = "default::tree_action::increase_caesar")]
     pub increase_caesar: KeyBinding,
diff --git a/cove/src/euph/small_message.rs b/cove/src/euph/small_message.rs
index 003cd40..5db1790 100644
--- a/cove/src/euph/small_message.rs
+++ b/cove/src/euph/small_message.rs
@@ -1,15 +1,18 @@
 use crossterm::style::Stylize;
-use euphoxide::api::{MessageId, Snowflake, Time};
+use euphoxide::api::{MessageId, Snowflake, Time, UserId};
 use jiff::Timestamp;
 use toss::{Style, Styled};
 
 use crate::{store::Msg, ui::ChatMsg};
 
+use super::util;
+
 #[derive(Debug, Clone)]
 pub struct SmallMessage {
     pub id: MessageId,
     pub parent: Option<MessageId>,
     pub time: Time,
+    pub user_id: UserId,
     pub nick: String,
     pub content: String,
     pub seen: bool,
@@ -70,6 +73,10 @@ impl Msg for SmallMessage {
     fn last_possible_id() -> Self::Id {
         MessageId(Snowflake::MAX)
     }
+
+    fn nick_emoji(&self) -> Option<String> {
+        Some(util::user_id_emoji(&self.user_id))
+    }
 }
 
 impl ChatMsg for SmallMessage {
diff --git a/cove/src/euph/util.rs b/cove/src/euph/util.rs
index c2928ab..ea1782a 100644
--- a/cove/src/euph/util.rs
+++ b/cove/src/euph/util.rs
@@ -1,11 +1,28 @@
-use std::sync::LazyLock;
+use std::{
+    collections::HashSet,
+    hash::{DefaultHasher, Hash, Hasher},
+    sync::LazyLock,
+};
 
 use crossterm::style::{Color, Stylize};
-use euphoxide::Emoji;
+use euphoxide::{Emoji, api::UserId};
 use toss::{Style, Styled};
 
 pub static EMOJI: LazyLock<Emoji> = LazyLock::new(Emoji::load);
 
+pub static EMOJI_LIST: LazyLock<Vec<String>> = LazyLock::new(|| {
+    let mut list = EMOJI
+        .0
+        .values()
+        .flatten()
+        .cloned()
+        .collect::<HashSet<_>>()
+        .into_iter()
+        .collect::<Vec<_>>();
+    list.sort_unstable();
+    list
+});
+
 /// Convert HSL to RGB following [this approach from wikipedia][1].
 ///
 /// `h` must be in the range `[0, 360]`, `s` and `l` in the range `[0, 1]`.
@@ -69,3 +86,11 @@ pub fn style_mention_exact(mention: &str, base: Style) -> Styled {
         .expect("mention must start with @");
     Styled::new(mention, nick_style(nick, base))
 }
+
+pub fn user_id_emoji(user_id: &UserId) -> String {
+    let mut hasher = DefaultHasher::new();
+    user_id.0.hash(&mut hasher);
+    let hash = hasher.finish();
+    let emoji = &EMOJI_LIST[hash as usize % EMOJI_LIST.len()];
+    emoji.clone()
+}
diff --git a/cove/src/store.rs b/cove/src/store.rs
index f64f71e..b7031c1 100644
--- a/cove/src/store.rs
+++ b/cove/src/store.rs
@@ -8,6 +8,10 @@ pub trait Msg {
     fn parent(&self) -> Option<Self::Id>;
     fn seen(&self) -> bool;
 
+    fn nick_emoji(&self) -> Option<String> {
+        None
+    }
+
     fn last_possible_id() -> Self::Id;
 }
 
diff --git a/cove/src/ui.rs b/cove/src/ui.rs
index 1c03834..5ebd540 100644
--- a/cove/src/ui.rs
+++ b/cove/src/ui.rs
@@ -50,6 +50,7 @@ impl From<Infallible> for UiError {
     }
 }
 
+#[expect(clippy::large_enum_variant)]
 pub enum UiEvent {
     GraphemeWidthsChanged,
     LogChanged,
diff --git a/cove/src/ui/chat.rs b/cove/src/ui/chat.rs
index 405339b..1116935 100644
--- a/cove/src/ui/chat.rs
+++ b/cove/src/ui/chat.rs
@@ -37,6 +37,7 @@ pub struct ChatState<M: Msg, S: MsgStore<M>> {
 
     cursor: Cursor<M::Id>,
     editor: EditorState,
+    nick_emoji: bool,
     caesar: i8,
 
     mode: Mode,
@@ -48,6 +49,7 @@ impl<M: Msg, S: MsgStore<M> + Clone> ChatState<M, S> {
         Self {
             cursor: Cursor::Bottom,
             editor: EditorState::new(),
+            nick_emoji: false,
             caesar: 0,
 
             mode: Mode::Tree,
@@ -56,6 +58,10 @@ impl<M: Msg, S: MsgStore<M> + Clone> ChatState<M, S> {
             store,
         }
     }
+
+    pub fn nick_emoji(&self) -> bool {
+        self.nick_emoji
+    }
 }
 
 impl<M: Msg, S: MsgStore<M>> ChatState<M, S> {
@@ -79,6 +85,7 @@ impl<M: Msg, S: MsgStore<M>> ChatState<M, S> {
                     &mut self.editor,
                     nick,
                     focused,
+                    self.nick_emoji,
                     self.caesar,
                 )
                 .boxed_async(),
@@ -117,6 +124,11 @@ impl<M: Msg, S: MsgStore<M>> ChatState<M, S> {
                 Reaction::Composed { parent, content }
             }
 
+            Reaction::NotHandled if event.matches(&keys.tree.action.toggle_nick_emoji) => {
+                self.nick_emoji = !self.nick_emoji;
+                Reaction::Handled
+            }
+
             Reaction::NotHandled if event.matches(&keys.tree.action.increase_caesar) => {
                 self.caesar = (self.caesar + 1).rem_euclid(26);
                 Reaction::Handled
diff --git a/cove/src/ui/chat/tree.rs b/cove/src/ui/chat/tree.rs
index 043e109..d9905fc 100644
--- a/cove/src/ui/chat/tree.rs
+++ b/cove/src/ui/chat/tree.rs
@@ -389,6 +389,7 @@ impl<M: Msg, S: MsgStore<M>> TreeViewState<M, S> {
         editor: &'a mut EditorState,
         nick: String,
         focused: bool,
+        nick_emoji: bool,
         caesar: i8,
     ) -> TreeView<'a, M, S> {
         TreeView {
@@ -397,6 +398,7 @@ impl<M: Msg, S: MsgStore<M>> TreeViewState<M, S> {
             editor,
             nick,
             focused,
+            nick_emoji,
             caesar,
         }
     }
@@ -410,6 +412,8 @@ pub struct TreeView<'a, M: Msg, S: MsgStore<M>> {
 
     nick: String,
     focused: bool,
+
+    nick_emoji: bool,
     caesar: i8,
 }
 
@@ -438,6 +442,7 @@ where
             size,
             nick: self.nick.clone(),
             focused: self.focused,
+            nick_emoji: self.nick_emoji,
             caesar: self.caesar,
             last_cursor: self.state.last_cursor.clone(),
             last_cursor_top: self.state.last_cursor_top,
diff --git a/cove/src/ui/chat/tree/renderer.rs b/cove/src/ui/chat/tree/renderer.rs
index 142624e..225191b 100644
--- a/cove/src/ui/chat/tree/renderer.rs
+++ b/cove/src/ui/chat/tree/renderer.rs
@@ -80,6 +80,7 @@ pub struct TreeContext<Id> {
     pub size: Size,
     pub nick: String,
     pub focused: bool,
+    pub nick_emoji: bool,
     pub caesar: i8,
     pub last_cursor: Cursor<Id>,
     pub last_cursor_top: i32,
@@ -207,6 +208,7 @@ where
             self.tz.clone(),
             indent,
             msg,
+            self.context.nick_emoji,
             self.context.caesar,
             folded_info,
         );
diff --git a/cove/src/ui/chat/tree/scroll.rs b/cove/src/ui/chat/tree/scroll.rs
index ab3ddae..a8a1305 100644
--- a/cove/src/ui/chat/tree/scroll.rs
+++ b/cove/src/ui/chat/tree/scroll.rs
@@ -22,6 +22,7 @@ where
             size: self.last_size,
             nick: self.last_nick.clone(),
             focused: true,
+            nick_emoji: false,
             caesar: 0,
             last_cursor: self.last_cursor.clone(),
             last_cursor_top: self.last_cursor_top,
diff --git a/cove/src/ui/chat/tree/widgets.rs b/cove/src/ui/chat/tree/widgets.rs
index d46920e..dd7fa89 100644
--- a/cove/src/ui/chat/tree/widgets.rs
+++ b/cove/src/ui/chat/tree/widgets.rs
@@ -59,10 +59,17 @@ pub fn msg<M: Msg + ChatMsg>(
     tz: TimeZone,
     indent: usize,
     msg: &M,
+    nick_emoji: bool,
     caesar: i8,
     folded_info: Option<usize>,
 ) -> Boxed<'static, Infallible> {
-    let (nick, mut content) = msg.styled();
+    let (mut nick, mut content) = msg.styled();
+
+    if nick_emoji {
+        if let Some(emoji) = msg.nick_emoji() {
+            nick = nick.then_plain("(").then_plain(emoji).then_plain(")");
+        }
+    }
 
     if caesar != 0 {
         // Apply caesar in inverse because we're decoding
diff --git a/cove/src/ui/euph/nick_list.rs b/cove/src/ui/euph/nick_list.rs
index e1e4e3d..8fbdb7b 100644
--- a/cove/src/ui/euph/nick_list.rs
+++ b/cove/src/ui/euph/nick_list.rs
@@ -22,9 +22,10 @@ pub fn widget<'a>(
     list: &'a mut ListState<SessionId>,
     joined: &Joined,
     focused: bool,
+    nick_emoji: bool,
 ) -> impl Widget<UiError> + use<'a> {
     let mut list_builder = ListBuilder::new();
-    render_rows(&mut list_builder, joined, focused);
+    render_rows(&mut list_builder, joined, focused, nick_emoji);
     list_builder.build(list)
 }
 
@@ -70,6 +71,7 @@ fn render_rows(
     list_builder: &mut ListBuilder<'_, SessionId, Background<Text>>,
     joined: &Joined,
     focused: bool,
+    nick_emoji: bool,
 ) {
     let mut people = vec![];
     let mut bots = vec![];
@@ -95,10 +97,38 @@ fn render_rows(
     lurkers.sort_unstable();
     nurkers.sort_unstable();
 
-    render_section(list_builder, "People", &people, &joined.session, focused);
-    render_section(list_builder, "Bots", &bots, &joined.session, focused);
-    render_section(list_builder, "Lurkers", &lurkers, &joined.session, focused);
-    render_section(list_builder, "Nurkers", &nurkers, &joined.session, focused);
+    render_section(
+        list_builder,
+        "People",
+        &people,
+        &joined.session,
+        focused,
+        nick_emoji,
+    );
+    render_section(
+        list_builder,
+        "Bots",
+        &bots,
+        &joined.session,
+        focused,
+        nick_emoji,
+    );
+    render_section(
+        list_builder,
+        "Lurkers",
+        &lurkers,
+        &joined.session,
+        focused,
+        nick_emoji,
+    );
+    render_section(
+        list_builder,
+        "Nurkers",
+        &nurkers,
+        &joined.session,
+        focused,
+        nick_emoji,
+    );
 }
 
 fn render_section(
@@ -107,6 +137,7 @@ fn render_section(
     sessions: &[HalfSession],
     own_session: &SessionView,
     focused: bool,
+    nick_emoji: bool,
 ) {
     if sessions.is_empty() {
         return;
@@ -124,7 +155,7 @@ fn render_section(
     list_builder.add_unsel(Text::new(row).background());
 
     for session in sessions {
-        render_row(list_builder, session, own_session, focused);
+        render_row(list_builder, session, own_session, focused, nick_emoji);
     }
 }
 
@@ -133,6 +164,7 @@ fn render_row(
     session: &HalfSession,
     own_session: &SessionView,
     focused: bool,
+    nick_emoji: bool,
 ) {
     let (name, style, style_inv, perms_style_inv) = if session.name.is_empty() {
         let name = "lurk".to_string();
@@ -166,16 +198,24 @@ fn render_row(
         " "
     };
 
+    let emoji = if nick_emoji {
+        format!(" ({})", euph::user_id_emoji(&session.id))
+    } else {
+        "".to_string()
+    };
+
     list_builder.add_sel(session.session_id.clone(), move |selected| {
         if focused && selected {
             let text = Styled::new_plain(owner)
                 .then(name, style_inv)
-                .then(perms, perms_style_inv);
+                .then(perms, perms_style_inv)
+                .then(emoji, perms_style_inv);
             Text::new(text).background().with_style(style_inv)
         } else {
             let text = Styled::new_plain(owner)
                 .then(&name, style)
-                .then_plain(perms);
+                .then_plain(perms)
+                .then_plain(emoji);
             Text::new(text).background()
         }
     });
diff --git a/cove/src/ui/euph/room.rs b/cove/src/ui/euph/room.rs
index ebae5a8..7e8ff99 100644
--- a/cove/src/ui/euph/room.rs
+++ b/cove/src/ui/euph/room.rs
@@ -121,7 +121,7 @@ impl EuphRoom {
                 .server_config
                 .clone()
                 .room(self.vault().room().name.clone())
-                .name(format!("{room:?}-{}", next_instance_id))
+                .name(format!("{room:?}-{next_instance_id}"))
                 .human(true)
                 .username(self.room_config.username.clone())
                 .force_username(self.room_config.force_username)
@@ -291,11 +291,16 @@ impl EuphRoom {
         joined: &Joined,
         focus: Focus,
     ) -> BoxedAsync<'a, UiError> {
-        let nick_list_widget = nick_list::widget(nick_list, joined, focus == Focus::NickList)
-            .padding()
-            .with_right(1)
-            .border()
-            .desync();
+        let nick_list_widget = nick_list::widget(
+            nick_list,
+            joined,
+            focus == Focus::NickList,
+            chat.nick_emoji(),
+        )
+        .padding()
+        .with_right(1)
+        .border()
+        .desync();
 
         let chat_widget = chat.widget(joined.session.name.clone(), focus == Focus::Chat);
 
diff --git a/cove/src/ui/rooms.rs b/cove/src/ui/rooms.rs
index f901f30..c3d6a40 100644
--- a/cove/src/ui/rooms.rs
+++ b/cove/src/ui/rooms.rs
@@ -536,7 +536,10 @@ impl Rooms {
         }
         if event.matches(&keys.rooms.action.connect_autojoin) {
             for (domain, server) in &self.config.euph.servers {
-                for name in server.rooms.keys() {
+                for (name, room) in &server.rooms {
+                    if !room.autojoin {
+                        continue;
+                    }
                     let id = RoomIdentifier::new(domain.clone(), name.clone());
                     self.connect_to_room(id).await;
                 }
diff --git a/cove/src/vault/euph.rs b/cove/src/vault/euph.rs
index 931091c..4a4109e 100644
--- a/cove/src/vault/euph.rs
+++ b/cove/src/vault/euph.rs
@@ -611,7 +611,7 @@ impl Action for GetMsg {
         let msg = conn
             .query_row(
                 "
-                SELECT id, parent, time, name, content, seen
+                SELECT id, parent, time, user_id, name, content, seen
                 FROM euph_msgs
                 WHERE domain = ?
                 AND room = ?
@@ -623,9 +623,10 @@ impl Action for GetMsg {
                         id: MessageId(row.get::<_, WSnowflake>(0)?.0),
                         parent: row.get::<_, Option<WSnowflake>>(1)?.map(|s| MessageId(s.0)),
                         time: row.get::<_, WTime>(2)?.0,
-                        nick: row.get(3)?,
-                        content: row.get(4)?,
-                        seen: row.get(5)?,
+                        user_id: UserId(row.get(3)?),
+                        nick: row.get(4)?,
+                        content: row.get(5)?,
+                        seen: row.get(6)?,
                     })
                 },
             )
@@ -703,7 +704,7 @@ impl Action for GetTree {
                         AND tree.room = euph_msgs.room
                         AND tree.id = euph_msgs.parent
                 )
-                SELECT id, parent, time, name, content, seen
+                SELECT id, parent, time, user_id, name, content, seen
                 FROM euph_msgs
                 JOIN tree USING (domain, room, id)
                 ORDER BY id ASC
@@ -716,9 +717,10 @@ impl Action for GetTree {
                         id: MessageId(row.get::<_, WSnowflake>(0)?.0),
                         parent: row.get::<_, Option<WSnowflake>>(1)?.map(|s| MessageId(s.0)),
                         time: row.get::<_, WTime>(2)?.0,
-                        nick: row.get(3)?,
-                        content: row.get(4)?,
-                        seen: row.get(5)?,
+                        user_id: UserId(row.get(3)?),
+                        nick: row.get(4)?,
+                        content: row.get(5)?,
+                        seen: row.get(6)?,
                     })
                 },
             )?