feat(ui): stacking role badges in roster + chat; drop default pentagram

- introduce a Role model + App::host()/roles_of(): the host is the first
  occupant of the roster (shown the moment they join, no sandbox required),
  and roles are additive — a host who summoned a sandbox and can drive reads
  ✝⚡◆. Badges read the same ACL the broker enforces, so they can never
  advertise a power the room won't honour
- render the stacked badge in the clergy panel and inline next to the author
  on every chat message; split VirtualBox commands into their own help cluster
- default styling: the startup handle prompt now prints ✝ (crypt sigil)
  instead of the inverted pentagram
- README: document VirtualBox VMs, snapshot save/load, AI streaming + recall,
  the badge system, and the expanded theme set
- gitignore out-of-tree experiments, the heavy demo-build kit, and logs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -17,6 +17,17 @@ secured_console_chat.egg-info/
 # Editor / OS
 .idea/
 
+# Logs / runtime scratch
+*.log
+err.log
+
+# Out-of-tree experiments (not part of hack-house)
+/experiments/
+/headroom/
+
+# Heavy / superseded demo-build kit (real demos live in video-toolkit)
+/docs/demo/
+
 # Project scratch
 /i-try/
 test_rsa.py

README.MD

@@ -33,11 +33,13 @@ Encrypted chat that runs in your terminal. You host the server, you control the
 - **Zero-knowledge server** — relays only ciphertext; cannot read messages, files, or terminal output
 - **RAM only** — nothing persisted on the server; close it and history is gone
 - **Shared sandbox** — summon a disposable `local` / `docker` / `multipass` box the whole room can watch and drive
-- **Real permissions** — the sandbox owner grants/revokes *drive* (keyboard) and *sudo* (VM superuser) per user
-- **Local-first AI agent** — `/ai start` summons an in-room AI that runs against *your own* [Ollama](https://ollama.com) (no API key, nothing leaves your machine); model-agnostic, addressed-only, end-to-end encrypted like every other client
+- **Snapshot save/load** — freeze a sandbox to a named snapshot and restore it later (`/sbx save` · `/sbx load` · `/sbx snaps`)
+- **Local VirtualBox VMs** — `/sbx vms` detects VirtualBox and lists your VMs; `/sbx gui <vm>` opens a desktop VM locally for the room to gather around — per-user consent gate, with automatic resolution of VT-x conflicts (Docker Desktop / multipass)
+- **Real permissions** — the host grants/revokes *drive* (keyboard) and *sudo* (VM superuser) per user; **stacking roster badges** show exactly who holds what, both in the clergy panel and inline on every chat message
+- **Local-first AI agent** — `/ai start` summons an in-room AI that runs against *your own* [Ollama](https://ollama.com) (no API key, nothing leaves your machine); replies **stream token-by-token** with **in-RAM semantic recall** of the conversation for context; model-agnostic, addressed-only, end-to-end encrypted like every other client
 - **Encrypted file transfer** — `/send` → `/accept` with SHA-256 verification
 - **TLS** — self-signed by default, or bring your own cert; `--no-tls` for local/Tailscale use
-- **Themes** — switchable "vestments" (`church` · `neon` · `crypt`)
+- **Themes** — seven switchable "vestments" (`crypt` default · `church` · `neon` · `blush` · `matrix` · `wraith` · `goldcrypt`), plus a live randomizer
 
 ## Layout
 
@@ -157,6 +159,9 @@ Type to chat. Slash commands and keys:
 | `/ai models` | Models the active agent can serve — or, with no agent, your local Ollama tags |
 | `/sbx launch [local\|docker\|multipass] [image]` | Summon the shared sandbox |
 | `/sbx stop` | Tear down the sandbox you host |
+| `/sbx save [label]` · `/sbx load <label>` · `/sbx snaps` | Snapshot the sandbox, restore one, or list snapshots |
+| `/sbx vms` | Detect VirtualBox and list local VMs |
+| `/sbx gui <vm> [--install]` | Open a local VirtualBox desktop VM for the room (consent-gated) |
 | `/drive` · `F2` | Take the shared shell (`Esc` releases) |
 | `/grant <user>` · `/revoke <user>` | Owner: delegate/withdraw drive |
 | `/sudo <user>` · `/unsudo <user>` | Owner: delegate/withdraw VM superuser |
@@ -180,6 +185,19 @@ server only ever sees ciphertext (same trust model as chat).
 
 Tear it down with `/sbx stop` (purges the VM/container).
 
+**Snapshots.** Freeze the current sandbox to a named checkpoint with `/sbx save
+[label]`, list what you've stored with `/sbx snaps`, and restore one later with
+`/sbx load <label>` — handy for resuming a half-built environment or replaying a
+demo from a known-good state.
+
+**Local VirtualBox VMs.** Separate from the relayed sandbox, `/sbx vms` detects a
+VirtualBox install and lists your VMs, and `/sbx gui <vm>` boots one as a full
+desktop VM **on your own machine** (`--install` offers to install VirtualBox
+first if it's missing). It's not owner-gated — the per-user confirmation gate
+*is* the permission, so everyone opens their own copy. If a hardware hypervisor
+(Docker Desktop, multipass) is holding VT-x, hack-house detects the conflict and
+offers to stop it so the VM can boot.
+
 ### Driving the shell
 
 The shared terminal is **watch-by-default**: everyone sees the live output, but
@@ -204,8 +222,14 @@ Permissions are enforced at **two layers**:
    "may type" and "may run privileged commands" are independent and enforced by
    the OS itself.
 
-The roster shows each member's status: owner, sudoer (⚡), driver (◆), or
-member (•).
+The roster shows each member's status with **stacking badges**: host (the
+theme's sigil, e.g. `✝`), sudoer (⚡), driver (◆), and member (•). They're
+additive — a host who summoned a sandbox and can drive reads `✝⚡◆` — and the
+host badge appears the moment someone is first in the room, before any sandbox
+exists. The same badge is rendered inline next to the author on every chat
+message, so a message's authority is legible right in the transcript, not only
+in the side panel. Because the badges read the exact ACL the sandbox enforces,
+they can never advertise a power the room won't honour.
 
 ### Sharing files & directories
 
@@ -257,10 +281,12 @@ directly:
 
 ### Themes (vestments)
 
-Three bundled themes — `crypt` (default, neutral monochrome), `church` (neon),
-and `neon`. Switch live with `/theme <name>`, list them with bare `/theme`, or
-load your own TOML at launch with `--theme <path>` (see `hh/themes/`). Each
-theme defines its own sigil, colours, and roster width.
+Seven bundled themes — `crypt` (default, neutral monochrome, `✝` sigil),
+`church`, `neon`, `blush`, `matrix`, `wraith`, and `goldcrypt`. Switch live with
+`/theme <name>`, list them with bare `/theme`, roll a fresh randomized vestment
+with `Ctrl+Alt+P` (and save it to disk), or load your own TOML at launch with
+`--theme <path>` (see `hh/themes/`). Each theme defines its own sigil, colours,
+and roster width.
 
 ### Staying connected
 

hh/film-virtualbox.sh

@@ -0,0 +1,297 @@
+#!/usr/bin/env bash
+# film-virtualbox.sh — RECORD the "VirtualBox, local GUI VM" beat and compose a
+# narrated, subtitled demo. Sibling of film-save-load.sh.
+#
+#   connect alice  →  /sbx vms (detect VirtualBox + list VMs)
+#   →  /sbx gui NE-Lab-Win11  (boots the real Windows VM locally, in its GUI)
+#   →  capture the VM window coming up  →  title/result cards, TTS, subtitles
+#
+# Two captures: a clean terminal asciinema cast (the commands) and an x11grab of
+# *only* the VirtualBox window region (not the whole desktop). Then video-forge
+# stitches title→terminal→gui→result; edge-tts narration + an SRT are muxed/burned
+# on top.
+#
+# Usage:  hh/film-virtualbox.sh [--keep] [--no-render] [--no-vm]
+#   --keep        leave server/sessions up; don't power off the VM
+#   --no-render   stop after the captures (skip compose)
+#   --no-vm       skip booting the VM (reuse an already-running one for GUI grab)
+set -uo pipefail
+
+REPO="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+VTK="$HOME/coding/video-toolkit"
+FORGE_PY="$HOME/anaconda3/bin/python3"
+pick_port() { local p; for p in $(seq 4240 4290); do ss -ltn 2>/dev/null | grep -q ":$p " || { echo "$p"; return; }; done; echo 4173; }
+PORT="${PORT:-$(pick_port)}"
+PW="${PW:-malware-bless}"
+VM="${VM:-NE-Lab-Win11}"
+PY="$REPO/.venv/bin/python"
+BIN="$REPO/hh/target/debug/hack-house"
+# Two side-by-side client panes (alice | bob) in one recorded window, so the
+# cast shows BOTH parties of the collaboration at once.
+WIN_W=190; WIN_H=42
+SRV_SESS="vbxfilm-srv"
+RUN_SESS="vbxfilm"
+REC_SESS="vbxfilm-rec"
+OUTDIR="$REPO/docs/demo"
+CAST="$OUTDIR/virtualbox.cast"
+TERM_MP4="$OUTDIR/vbx-term.mp4"
+GUI_MP4="$OUTDIR/vbx-gui.mp4"
+CUT_MP4="$OUTDIR/vbx-cut.mp4"
+NARR_MP3="$OUTDIR/vbx-narration.mp3"
+SRT="$OUTDIR/vbx.srt"
+FINAL_MP4="$OUTDIR/virtualbox.mp4"
+MANIFEST="$OUTDIR/vbx-forge.json"
+ACCENT="#39ff14"
+GUI_SECS="${GUI_SECS:-18}"
+
+KEEP=0; RENDER=1; BOOT_VM=1
+for a in "$@"; do case "$a" in
+  --keep) KEEP=1 ;; --no-render) RENDER=0 ;; --no-vm) BOOT_VM=0 ;;
+esac; done
+
+GREEN=$'\e[32m'; RED=$'\e[31m'; YEL=$'\e[33m'; DIM=$'\e[2m'; RST=$'\e[0m'
+step() { printf '\n%s== %s ==%s\n' "$YEL" "$*" "$RST"; }
+ok()   { printf '%s  ok %s%s\n' "$GREEN" "$*" "$RST"; }
+bad()  { printf '%s  XX %s%s\n' "$RED" "$*" "$RST"; }
+note() { printf '%s    %s%s\n' "$DIM" "$*" "$RST"; }
+FAIL=0; fail() { bad "$*"; FAIL=1; }
+
+cleanup() {
+  if [[ $KEEP -eq 1 ]]; then note "--keep: leaving sessions + VM up."; return; fi
+  step "cleanup"
+  tmux kill-session -t "$REC_SESS" 2>/dev/null
+  tmux kill-session -t "$RUN_SESS" 2>/dev/null
+  tmux kill-session -t "$SRV_SESS" 2>/dev/null
+  if [[ $BOOT_VM -eq 1 ]]; then
+    VBoxManage controlvm "$VM" poweroff >/dev/null 2>&1 && note "powered off $VM"
+  fi
+}
+trap cleanup EXIT
+
+# Pane-targeted drivers. We resolve real pane IDs (APANE/BPANE) at split time
+# rather than hardcoding .0/.1 — the user's tmux may set pane-base-index 1, which
+# would shift the indices and silently drop sends to a nonexistent ".0".
+APANE=""; BPANE=""
+asay() { tmux send-keys -t "$APANE" -l "$*"; sleep 0.5; tmux send-keys -t "$APANE" Enter; sleep 0.8; }
+bsay() { tmux send-keys -t "$BPANE" -l "$*"; sleep 0.5; tmux send-keys -t "$BPANE" Enter; sleep 0.8; }
+acap() { tmux capture-pane -t "$APANE" -p 2>/dev/null; }
+bcap() { tmux capture-pane -t "$BPANE" -p 2>/dev/null; }
+await_for() { local re="$1" t="${2:-30}" i=0; while (( i < t*2 )); do acap | grep -qE "$re" && return 0; sleep 0.5; ((i++)); done; return 1; }
+bwait_for() { local re="$1" t="${2:-30}" i=0; while (( i < t*2 )); do bcap | grep -qE "$re" && return 0; sleep 0.5; ((i++)); done; return 1; }
+
+# ---- 0. preflight -----------------------------------------------------------
+step "preflight"
+command -v tmux >/dev/null || { echo "tmux required"; exit 2; }
+command -v VBoxManage >/dev/null || { echo "VirtualBox required"; exit 2; }
+command -v xdotool >/dev/null || { echo "xdotool required"; exit 2; }
+ASCIINEMA="$( [[ -x "$HOME/anaconda3/bin/asciinema" ]] && echo "$HOME/anaconda3/bin/asciinema" || command -v asciinema )"
+[[ -n "$ASCIINEMA" ]] || { echo "asciinema required"; exit 2; }
+[[ -x "$PY" ]] || { echo "venv python missing: $PY"; exit 2; }
+VBoxManage list vms | grep -q "\"$VM\"" || { echo "VM '$VM' not registered"; exit 2; }
+[[ -x "$BIN" ]] || { step "building client"; ( cd "$REPO/hh" && cargo build ) || exit 2; }
+mkdir -p "$OUTDIR"
+ok "tools present; VM '$VM' registered"
+
+tmux kill-session -t "$REC_SESS" 2>/dev/null; tmux kill-session -t "$RUN_SESS" 2>/dev/null
+tmux kill-session -t "$SRV_SESS" 2>/dev/null
+VBoxManage controlvm "$VM" poweroff >/dev/null 2>&1 || true
+rm -f "$CAST"
+
+# ---- 1. server (not recorded) ----------------------------------------------
+step "boot server :$PORT"
+tmux new-session -d -s "$SRV_SESS" -x 200 -y 50 \
+  "cd '$REPO' && '$PY' cmd_chat.py serve 127.0.0.1 $PORT --password '$PW' --no-tls 2>&1 | tee /tmp/vbxfilm-srv.log"
+sleep 3
+ok "server up"
+
+# ---- 2. two-party demo window + recorder -----------------------------------
+step "open recorded window (${WIN_W}x${WIN_H}, two panes) and start asciinema"
+tmux new-session -d -s "$RUN_SESS" -x "$WIN_W" -y "$WIN_H" "bash --noprofile --norc"
+APANE="$(tmux list-panes -t "$RUN_SESS" -F '#{pane_id}' | head -1)"            # alice
+BPANE="$(tmux split-window -h -t "$APANE" -P -F '#{pane_id}' "bash --noprofile --norc")"  # bob
+tmux select-layout -t "$RUN_SESS" even-horizontal
+sleep 0.5
+for pane in "$APANE" "$BPANE"; do
+  tmux send-keys -t "$pane" -l "cd '$REPO'"; tmux send-keys -t "$pane" Enter
+  tmux send-keys -t "$pane" -l "clear"; tmux send-keys -t "$pane" Enter
+done
+sleep 0.5
+tmux new-session -d -s "$REC_SESS" -x "$WIN_W" -y "$WIN_H" \
+  "'$ASCIINEMA' rec --overwrite -c 'tmux attach -t $RUN_SESS' '$CAST'"
+sleep 2
+ok "recording → $CAST"
+
+# ---- 3. both parties join (alice = owner-side, bob = guest/client) ----------
+asay "echo '⛧ alice — host'"; bsay "echo '⛧ bob — guest'"
+sleep 0.8
+asay "$BIN connect 127.0.0.1 $PORT alice --password '$PW' --no-tls"
+await_for 'alice|roster|hack-house|owner' 20 && ok "alice joined" || fail "alice never joined"
+bsay "$BIN connect 127.0.0.1 $PORT bob --password '$PW' --no-tls"
+bwait_for 'bob|roster|hack-house' 20 && ok "bob joined" || fail "bob never joined"
+sleep 1.5
+
+# ---- 4. detect + list VMs (alice asks the room what's on the metal) ---------
+step "/sbx vms — detect VirtualBox, list VMs"
+asay "/sbx vms"
+await_for "VirtualBox .* detected|$VM" 15 && ok "detected + listed" || fail "no detect line"
+sleep 2.5
+
+# ---- 5. the GUEST launches the shared VM through the consent gate -----------
+# /sbx gui is open to ANY member (not owner-gated) — the per-client consent gate
+# IS the client's permission. Bob (guest) opens it: gate → `/sbx gui yes` → boot.
+# A second gate would appear if a hypervisor held VT-x; we pre-freed it so only
+# the open-locally consent shows. On success bob's client broadcasts to the room.
+step "/sbx gui $VM — guest (bob) consents, then boots the real VM locally"
+if [[ $BOOT_VM -eq 1 ]]; then
+  bsay "/sbx gui $VM"
+  bwait_for "open .*locally|continue|cancel" 15 && ok "consent gate shown to guest" || note "no consent prompt (already running?)"
+  sleep 2.0
+  bsay "/sbx gui yes"
+  bwait_for "launched $VM|already running|freeing VT-x" 25 && ok "guest launch acked" || fail "no launch ack"
+  # The room learns the shared appliance is live: alice should see the notice.
+  await_for "bob opened .*$VM|open your own copy" 15 && ok "host saw the room notice" || note "host notice not seen"
+  sleep 1.5
+  # And the host can open her own copy with one command (same host → already up).
+  step "/sbx gui $VM — host (alice) opens her own copy"
+  asay "/sbx gui $VM"
+  await_for "already running|open .*locally|launched $VM" 15 && ok "host can open too" || note "host open not acked"
+  sleep 2.0
+else
+  note "--no-vm: skipping actual boot"
+fi
+sleep 2
+
+# stop the terminal recording now (the rest is the GUI grab + compose)
+step "stop terminal recording"
+tmux kill-session -t "$RUN_SESS" 2>/dev/null
+sleep 2
+[[ -s "$CAST" ]] && ok "cast: $CAST ($(du -h "$CAST" | cut -f1))" || fail "cast not written"
+
+# ---- 6. render the terminal cast → mp4 -------------------------------------
+step "render terminal cast → mp4"
+bash "$VTK/bin/cast2mp4.sh" "$CAST" "$TERM_MP4" --font-size 28 --theme dracula \
+  && ok "term mp4: $TERM_MP4" || fail "term render failed"
+
+# ---- 7. grab ONLY the VirtualBox window region -----------------------------
+if [[ $BOOT_VM -eq 1 ]]; then
+  step "capture the $VM window (${GUI_SECS}s)"
+  WIN=""; for i in $(seq 1 20); do
+    WIN="$(xdotool search --name "$VM" 2>/dev/null | tail -1)"
+    [[ -n "$WIN" ]] && break; sleep 1
+  done
+  if [[ -n "$WIN" ]]; then
+    xdotool windowactivate "$WIN" 2>/dev/null; sleep 1
+    # Park the window at the top-left so a tall VM window can't run off the
+    # bottom of the screen (x11grab refuses a capture area outside the display).
+    xdotool windowmove "$WIN" 0 0 2>/dev/null; sleep 0.6
+    eval "$(xdotool getwindowgeometry --shell "$WIN")"   # sets X Y WIDTH HEIGHT
+    read -r SCRW SCRH < <(xdotool getdisplaygeometry)
+    (( X < 0 )) && X=0; (( Y < 0 )) && Y=0
+    MAXW=$(( SCRW - X )); MAXH=$(( SCRH - Y ))
+    (( WIDTH  > MAXW )) && WIDTH=$MAXW
+    (( HEIGHT > MAXH )) && HEIGHT=$MAXH
+    EW=$(( WIDTH  - WIDTH  % 2 )); EH=$(( HEIGHT - HEIGHT % 2 ))
+    note "window $WIN @ ${EW}x${EH}+${X},${Y} (screen ${SCRW}x${SCRH})"
+    GEOM="${EW}x${EH}" OFF="${X},${Y}" bash "$VTK/bin/screen-rec.sh" "$GUI_MP4" "$GUI_SECS" \
+      && ok "gui mp4: $GUI_MP4" || fail "gui capture failed"
+  else
+    fail "could not find the $VM window"
+  fi
+fi
+
+[[ $RENDER -eq 0 ]] && { step "result (--no-render)"; exit $FAIL; }
+
+# ---- 8. narration (edge-tts) + subtitles -----------------------------------
+step "generate TTS narration + SRT"
+"$FORGE_PY" - "$NARR_MP3" "$SRT" <<'PY'
+import sys, asyncio, edge_tts
+from edge_tts import SubMaker
+out_mp3, out_srt = sys.argv[1], sys.argv[2]
+VOICE = "en-US-GuyNeural"
+script = (
+    "Hack house now speaks VirtualBox. "
+    "Ask the room what's on the metal: it detects your install and lists every VM. "
+    "Any member can summon one — host or guest. Bob, the guest, opens it, and a consent gate asks first, because the window lands on his own machine. "
+    "He confirms, and a real Windows eleven lab boots locally. "
+    "The room sees it go live, so Alice can open her own copy with a single command. "
+    "One shared appliance, each party running it locally. No pixels cross the wire — same zero knowledge trust, now with a full graphical VM."
+)
+async def main():
+    sm = SubMaker()
+    with open(out_mp3, "wb") as f:
+        async for chunk in edge_tts.Communicate(script, VOICE, rate="-4%", boundary="WordBoundary").stream():
+            if chunk["type"] == "audio":
+                f.write(chunk["data"])
+            elif chunk["type"] == "WordBoundary":
+                sm.feed(chunk)
+    open(out_srt, "w").write(sm.get_srt())   # edge-tts 7.x emits SRT directly
+asyncio.run(main())
+print("narration written")
+PY
+[[ -s "$NARR_MP3" ]] && ok "narration: $NARR_MP3 ($(du -h "$NARR_MP3" | cut -f1))" || fail "tts failed"
+[[ -s "$SRT" ]] && ok "srt: $SRT" || note "no SRT produced"
+
+# ---- 9. compose the visual cut (video-forge) -------------------------------
+step "compose visual cut (forge)"
+TERM_VID="$TERM_MP4"; GUI_VID="$GUI_MP4"
+cat > "$MANIFEST" <<JSON
+{
+  "meta": {"resolution": [1920, 1080], "fps": 30, "style": "technical", "crossfade": 0.4},
+  "scenes": [
+    {"type": "title_card", "duration": 4.0,
+     "headline": "VIRTUALBOX", "subhead": "share a VM — run it locally",
+     "accent": "$ACCENT", "transition_out": "fade"},
+    {"type": "video", "source": "$TERM_VID",
+     "transition_in": "fade", "transition_out": "fade"},
+    {"type": "video", "source": "$GUI_VID",
+     "transition_in": "fade", "transition_out": "fade"},
+    {"type": "result_card", "duration": 6.5,
+     "headline": "WHAT HAPPENED", "subhead": "both parties · client consent · zero-knowledge",
+     "accent": "$ACCENT",
+     "items": [
+       "detected the local VirtualBox install + listed VMs",
+       "any member can launch — not owner-gated",
+       "the guest consented (a gate, on his own machine)",
+       "a real Windows 11 VM booted locally in its GUI",
+       "the room was notified — the host can open hers too",
+       "one shared appliance, each party runs it locally"
+     ],
+     "transition_in": "fade"}
+  ]
+}
+JSON
+( cd "$VTK/tools/video-forge" && "$FORGE_PY" forge.py render "$MANIFEST" --output "$CUT_MP4" ) \
+  && ok "cut: $CUT_MP4" || fail "forge render failed"
+
+# ---- 10. mux narration + burn subtitles → final ----------------------------
+step "mux narration + burn subtitles → final"
+if [[ -s "$CUT_MP4" && -s "$NARR_MP3" ]]; then
+  TMP_AV="$OUTDIR/.vbx-av.mp4"
+  # add the voiceover (the cut may be silent or have music; keep it low if present)
+  if ffprobe -v error -select_streams a -show_entries stream=index -of csv=p=0 "$CUT_MP4" | grep -q .; then
+    ffmpeg -y -loglevel error -i "$CUT_MP4" -i "$NARR_MP3" \
+      -filter_complex "[0:a]volume=0.18[bg];[bg][1:a]amix=inputs=2:duration=first:dropout_transition=0[a]" \
+      -map 0:v -map "[a]" -c:v copy -c:a aac -movflags +faststart "$TMP_AV"
+  else
+    ffmpeg -y -loglevel error -i "$CUT_MP4" -i "$NARR_MP3" \
+      -map 0:v -map 1:a -c:v copy -c:a aac -shortest -movflags +faststart "$TMP_AV"
+  fi
+  if [[ -s "$SRT" ]]; then
+    bash "$VTK/bin/captions.sh" "$TMP_AV" "$FINAL_MP4" --srt "$SRT" --accent "$ACCENT" \
+      && ok "final (subtitled): $FINAL_MP4" || { cp "$TMP_AV" "$FINAL_MP4"; note "caption burn failed; final without subs"; }
+  else
+    cp "$TMP_AV" "$FINAL_MP4"; note "no SRT; final without subs"
+  fi
+  rm -f "$TMP_AV"
+else
+  fail "missing cut or narration; cannot finalize"
+fi
+
+# ---- summary ----------------------------------------------------------------
+step "result"
+if [[ $FAIL -eq 0 && -s "$FINAL_MP4" ]]; then
+  printf '%sFILM OK%s — %s (%s)\n' "$GREEN" "$RST" "$FINAL_MP4" "$(du -h "$FINAL_MP4" | cut -f1)"
+else
+  printf '%sFILM FAIL%s — inspect %s\n' "$RED" "$RST" "$OUTDIR"
+fi
+exit $FAIL

hh/src/app.rs

@@ -37,6 +37,18 @@ pub struct ChatLine {
     pub system: bool,
 }
 
+/// A power a user currently holds in the room. Badges stack: a user can be the
+/// `Host` *and* a `Sudoer` *and* a `Driver` at once. `Member` is the floor —
+/// returned only when none of the others apply. The order of the variants is
+/// the order badges are painted (host first).
+#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+pub enum Role {
+    Host,
+    Sudoer,
+    Driver,
+    Member,
+}
+
 #[derive(Clone)]
 pub struct User {
     pub user_id: String,
@@ -107,6 +119,13 @@ pub enum Net {
     /// A local system notice produced off-thread (e.g. async Ollama probe).
     Sys(String),
     Err(String),
+    /// Relayed to the room when a member opens a shared VirtualBox VM locally, so
+    /// the *other* party knows the appliance is live and can open their own copy.
+    /// `by` is the server-authenticated launcher; the receiver skips its own echo.
+    VmOpened {
+        by: String,
+        vm: String,
+    },
     Closed,
 }
 
@@ -115,6 +134,33 @@ pub struct SbxView {
     pub backend: String,
 }
 
+/// Where a staged `/sbx gui` launch is in its confirmation gauntlet. A local VM
+/// boots a real window on the user's own machine and can require stopping other
+/// hypervisors / installing VirtualBox, so each consequence gets its own
+/// explicit `/sbx gui yes`. Any `/sbx gui cancel` (or a fresh `/sbx gui <vm>`)
+/// abandons the pending launch without side effects.
+#[derive(Clone)]
+pub enum VmStage {
+    /// Gate 1 — confirm opening the VM locally at all.
+    Open,
+    /// Gate 2 — confirm STOPPING the VT-x holders that block a hardware VM.
+    CloseConflicts,
+    /// Gate 3 — confirm INSTALLING VirtualBox (it isn't present yet).
+    Install,
+}
+
+/// A `/sbx gui <vm>` launch awaiting confirmation. Detection is captured once
+/// (at stage Open) so the prompts stay consistent through the gauntlet.
+#[derive(Clone)]
+pub struct PendingVm {
+    pub vm: String,
+    pub stage: VmStage,
+    /// Hypervisors holding VT-x that must stop before a hardware VM can boot.
+    pub conflicts: Vec<sbx::VtxHolder>,
+    /// VirtualBox isn't installed; the launch must install it first.
+    pub needs_install: bool,
+}
+
 /// Display handle the summoned Python agent joins under (see `spawn_agent`).
 const AGENT_NAME: &str = "oracle";
 
@@ -132,6 +178,9 @@ pub struct App {
     /// Members whose VM unix account has sudo (superuser). Always includes owner.
     pub sudoers: std::collections::HashSet<String>,
     pub pending_offer: Option<ft::Offer>,
+    /// A `/sbx gui <vm>` launch waiting on its confirmation gauntlet (open →
+    /// stop-conflicts → install). None when nothing is pending.
+    pub pending_vm: Option<PendingVm>,
     transfers: HashMap<String, Transfer>,
     /// Chat scrollback: lines scrolled up from the live bottom (0 = following).
     pub chat_scroll: usize,
@@ -180,6 +229,7 @@ impl App {
             drivers: std::collections::HashSet::new(),
             sudoers: std::collections::HashSet::new(),
             pending_offer: None,
+            pending_vm: None,
             transfers: HashMap::new(),
             chat_scroll: 0,
             sbx_scroll: 0,
@@ -219,6 +269,35 @@ impl App {
         self.drivers.contains(&self.me)
     }
 
+    /// The room host — whoever opened the house. The relay returns the roster in
+    /// join order (its session store is an insertion-ordered map), and every
+    /// client is served the *same* ordered roster, so "first occupant" is a
+    /// stable, consistent host across all peers without any extra protocol.
+    pub fn host(&self) -> Option<&str> {
+        self.users.first().map(|u| u.username.as_str())
+    }
+
+    /// Every role `name` currently holds, additive and in paint order. Reads the
+    /// exact same `sudoers`/`drivers` sets the broker uses to gate shell input,
+    /// so a rendered badge can never claim a power the room won't actually
+    /// enforce. Always returns at least `Member`.
+    pub fn roles_of(&self, name: &str) -> Vec<Role> {
+        let mut roles = Vec::new();
+        if self.host() == Some(name) {
+            roles.push(Role::Host);
+        }
+        if self.sudoers.contains(name) {
+            roles.push(Role::Sudoer);
+        }
+        if self.drivers.contains(name) {
+            roles.push(Role::Driver);
+        }
+        if roles.is_empty() {
+            roles.push(Role::Member);
+        }
+        roles
+    }
+
     fn sys(&mut self, text: impl Into<String>) {
         self.push_line(ChatLine {
             ts: String::new(),
@@ -353,6 +432,14 @@ impl App {
             Net::Ft(_) => {} // handled in the run loop (needs out channel + disk)
             Net::Sys(t) => self.sys(t),
             Net::Err(t) => self.err(t),
+            Net::VmOpened { by, vm } => {
+                // Skip our own echo — we already saw the local "launched" line.
+                if by != self.me {
+                    self.sys(format!(
+                        "⛧ {by} opened ‘{vm}’ locally — `/sbx gui {vm}` to open your own copy"
+                    ));
+                }
+            }
             Net::Closed => {
                 self.connected = false;
                 self.sys("connection closed — press Ctrl-R to reconnect");
@@ -1015,9 +1102,8 @@ async fn writer_task(
             biased;
             // Swap in a reconnect's fresh sink before draining more frames.
             new_sink = sink_rx.recv() => {
-                match new_sink {
-                    Some(s) => sink = s,
-                    None => {}
+                if let Some(s) = new_sink {
+                    sink = s;
                 }
             }
             msg = out_rx.recv() => {
@@ -1094,13 +1180,20 @@ fn handle_command(
         } else if name == "random" {
             // Same as Ctrl+Alt+P — roll a fresh procedural vestment.
             *theme = Theme::random();
-            app.sys(format!("{} conjured vestment '{}'", theme.sigil, theme.name));
+            app.sys(format!(
+                "{} conjured vestment '{}'",
+                theme.sigil, theme.name
+            ));
         } else if name == "save" || name.starts_with("save ") {
             // Persist the vestment you're currently wearing (e.g. a `random`
             // roll you like) to themes/<slug>.toml so it sticks around. Bare
             // `/theme save` reuses the theme's own generated name.
             let want = name[4..].trim();
-            let want = if want.is_empty() { theme.name.clone() } else { want.to_string() };
+            let want = if want.is_empty() {
+                theme.name.clone()
+            } else {
+                want.to_string()
+            };
             match theme.save(&want) {
                 Ok(slug) => app.sys(format!(
                     "{} saved vestment '{slug}' — re-don it anytime with /theme {slug}",
@@ -1338,39 +1431,67 @@ fn handle_command(
             }
             Some("gui") => {
                 let gargs: Vec<&str> = p.collect();
-                let install = gargs.iter().any(|a| *a == "--install");
-                let name = gargs
-                    .iter()
-                    .copied()
-                    .find(|a| !a.starts_with('-'))
-                    .map(str::to_string);
-                match name {
-                    None => app.sys("usage: /sbx gui <vm> [--install]   (list VMs with /sbx vms)"),
-                    Some(vm) => {
-                        app.sys(format!("launching {vm} in the VirtualBox GUI…"));
-                        let tx = app_tx.clone();
-                        tokio::spawn(async move {
-                            let res = tokio::task::spawn_blocking(move || {
-                                if !sbx::vbox_installed() {
-                                    if install {
-                                        sbx::ensure_vbox_install()
-                                            .map_err(|e| format!("install failed: {e}"))?;
+                let first = gargs.iter().copied().find(|a| !a.starts_with('-'));
+                let is_yes = matches!(first, Some("yes" | "y" | "go" | "confirm" | "ok"));
+                let is_no = matches!(first, Some("no" | "n" | "cancel" | "abort" | "stop"));
+                if is_no {
+                    // A `/sbx gui cancel` at any gate: drop the launch, no side
+                    // effects (nothing was stopped or installed yet).
+                    if app.pending_vm.take().is_some() {
+                        app.sys("cancelled — no VM launched, nothing stopped or installed");
                     } else {
-                                        return Err("VirtualBox isn't installed — retry with `/sbx gui <vm> --install` (needs sudo), or run ./ensure-vbox.sh first".to_string());
+                        app.sys("nothing to cancel");
                     }
+                } else if is_yes {
+                    // Advance the gauntlet one gate.
+                    match app.pending_vm.take() {
+                        None => app.sys("no VM launch is waiting — start one with `/sbx gui <vm>`"),
+                        Some(pend) => advance_vm(pend, app, app_tx, out_tx, room),
                     }
-                                sbx::gui_launch(&vm).map_err(|e| e.to_string())
-                            })
-                            .await;
-                            let _ = match res {
-                                Ok(Ok(desc)) => tx.send(Net::Sys(format!("⛧ {desc}"))),
-                                Ok(Err(e)) => tx.send(Net::Err(e)),
-                                Err(e) => tx.send(Net::Err(format!("gui task: {e}"))),
-                            };
+                } else {
+                    // A fresh `/sbx gui <vm>`: detect locally and pose gate 1.
+                    let install_flag = gargs.contains(&"--install");
+                    match first.map(str::to_string) {
+                        None => app.sys(
+                            "usage: /sbx gui <vm> [--install]  ·  confirm with `/sbx gui yes`, abort with `/sbx gui cancel`  (list VMs: /sbx vms)",
+                        ),
+                        Some(vm) => {
+                            let installed = sbx::vbox_installed();
+                            if installed && sbx::vm_running(&vm) {
+                                app.sys(format!(
+                                    "{vm} is already running — look for its window on your desktop"
+                                ));
+                            } else {
+                                // Local boot affects the user's own machine, so
+                                // stage it behind explicit confirmation. Anyone
+                                // in the room can run this — each client opens
+                                // its own copy locally (host and guest alike).
+                                let _ = install_flag; // consent now flows through `/sbx gui yes`
+                                let conflicts = sbx::vtx_holders();
+                                let mut warn = String::new();
+                                if !conflicts.is_empty() {
+                                    warn.push_str(&format!(
+                                        " ⚠ {} other VM(s) hold VT-x and may need to stop.",
+                                        conflicts.len()
+                                    ));
+                                }
+                                if !installed {
+                                    warn.push_str(" (VirtualBox isn't installed yet.)");
+                                }
+                                app.sys(format!(
+                                    "open ‘{vm}’ locally? a VirtualBox window will launch on YOUR machine.{warn}  →  `/sbx gui yes` to continue · `/sbx gui cancel` to abort"
+                                ));
+                                app.pending_vm = Some(PendingVm {
+                                    vm,
+                                    stage: VmStage::Open,
+                                    conflicts,
+                                    needs_install: !installed,
                                 });
                             }
                         }
                     }
+                }
+            }
             _ => app.sys(
                 "usage: /sbx launch [local|docker|multipass] [image] · gui <vm> · vms · stop · save [label] · load <label> · snaps",
             ),
@@ -1588,7 +1709,122 @@ fn local_ollama_models() -> Result<Vec<String>, String> {
 fn is_snap_label(s: &str) -> bool {
     !s.is_empty()
         && s.len() <= 64
-        && s.chars().all(|c| c.is_ascii_alphanumeric() || matches!(c, '.' | '_' | '-'))
+        && s.chars()
+            .all(|c| c.is_ascii_alphanumeric() || matches!(c, '.' | '_' | '-'))
+}
+
+/// Advance a staged `/sbx gui` launch by one confirmation gate. Each `/sbx gui
+/// yes` calls this. Stage transitions are pure (app-thread) state changes; only
+/// the *final* gate spawns the off-thread executor that actually stops
+/// conflicts, installs, and boots the VM. A holder we can't stop cleanly aborts
+/// the whole launch here rather than killing anything.
+fn advance_vm(
+    pend: PendingVm,
+    app: &mut App,
+    app_tx: &UnboundedSender<Net>,
+    out_tx: &UnboundedSender<WsMsg>,
+    room: &Arc<fernet::Fernet>,
+) {
+    // Refuse outright if any VT-x holder is one we won't touch (e.g. a stray
+    // qemu we don't recognise). Better to make the user decide than to kill it.
+    if let Some(bad) = pend.conflicts.iter().find(|h| !h.stoppable) {
+        app.err(format!(
+            "can't free VT-x automatically — {} is running and I won't kill it. Stop it yourself, then retry `/sbx gui {}`.",
+            bad.label, pend.vm
+        ));
+        return;
+    }
+    match pend.stage {
+        VmStage::Open => {
+            if !pend.conflicts.is_empty() {
+                let names: Vec<String> = pend.conflicts.iter().map(|h| h.label.clone()).collect();
+                app.sys(format!(
+                    "⚠ second confirmation: these hold the CPU's VT-x and block a VirtualBox VM — {}. They must STOP first (reversible — restart them afterwards).  →  `/sbx gui yes` to stop them & continue · `/sbx gui cancel` to abort",
+                    names.join(", ")
+                ));
+                app.pending_vm = Some(PendingVm {
+                    stage: VmStage::CloseConflicts,
+                    ..pend
+                });
+            } else if pend.needs_install {
+                app.sys("VirtualBox isn't installed.  →  `/sbx gui yes` to install it now (needs sudo) · `/sbx gui cancel` to abort");
+                app.pending_vm = Some(PendingVm {
+                    stage: VmStage::Install,
+                    ..pend
+                });
+            } else {
+                spawn_vm_execute(pend, app, app_tx, out_tx, room);
+            }
+        }
+        VmStage::CloseConflicts => {
+            if pend.needs_install {
+                app.sys("VirtualBox isn't installed.  →  `/sbx gui yes` to install it now (needs sudo) · `/sbx gui cancel` to abort");
+                app.pending_vm = Some(PendingVm {
+                    stage: VmStage::Install,
+                    ..pend
+                });
+            } else {
+                spawn_vm_execute(pend, app, app_tx, out_tx, room);
+            }
+        }
+        VmStage::Install => spawn_vm_execute(pend, app, app_tx, out_tx, room),
+    }
+}
+
+/// Final step of the gauntlet: off-thread, stop any VT-x holders (reversibly),
+/// install VirtualBox if needed, then boot the VM's GUI. Reports through the
+/// app channel so the blocking work never stalls the TUI. On success it also
+/// broadcasts a `_sbx:vm` frame so the *other* party sees the shared appliance
+/// go live and can `/sbx gui <vm>` their own local copy — anyone in the room may
+/// do so (the per-client consent gauntlet *is* the client's permission; this is
+/// deliberately not owner-gated, unlike `/sbx save`).
+fn spawn_vm_execute(
+    pend: PendingVm,
+    app: &mut App,
+    app_tx: &UnboundedSender<Net>,
+    out_tx: &UnboundedSender<WsMsg>,
+    room: &Arc<fernet::Fernet>,
+) {
+    let PendingVm {
+        vm,
+        conflicts,
+        needs_install,
+        ..
+    } = pend;
+    if conflicts.is_empty() {
+        app.sys(format!("launching ‘{vm}’…"));
+    } else {
+        app.sys(format!(
+            "freeing VT-x ({} VM(s)) then launching ‘{vm}’…",
+            conflicts.len()
+        ));
+    }
+    let tx = app_tx.clone();
+    let out = out_tx.clone();
+    let room = room.clone();
+    let announce_vm = vm.clone();
+    tokio::spawn(async move {
+        let res = tokio::task::spawn_blocking(move || {
+            for h in &conflicts {
+                sbx::stop_vtx_holder(h).map_err(|e| format!("freeing VT-x: {e}"))?;
+            }
+            if needs_install && !sbx::vbox_installed() {
+                sbx::ensure_vbox_install().map_err(|e| format!("install failed: {e}"))?;
+            }
+            sbx::gui_launch(&vm).map_err(|e| e.to_string())
+        })
+        .await;
+        let _ = match res {
+            Ok(Ok(desc)) => {
+                // Tell the room the shared VM is live (others can open their own).
+                let frame = json!({"_sbx": "vm", "vm": announce_vm});
+                let _ = out.send(WsMsg::Text(room.encrypt(frame.to_string().as_bytes())));
+                tx.send(Net::Sys(format!("⛧ {desc}")))
+            }
+            Ok(Err(e)) => tx.send(Net::Err(e)),
+            Err(e) => tx.send(Net::Err(format!("gui task: {e}"))),
+        };
+    });
 }
 
 #[allow(clippy::too_many_arguments)]
@@ -1712,7 +1948,10 @@ fn spawn_agent(
             cmd.arg("--profile").arg(p);
         }
         None => {
-            cmd.arg("--provider").arg("ollama").arg("--model").arg(model);
+            cmd.arg("--provider")
+                .arg("ollama")
+                .arg("--model")
+                .arg(model);
         }
     }
     cmd.stdin(Stdio::null())
@@ -1733,9 +1972,132 @@ fn spawn_agent(
 
 #[cfg(test)]
 mod tests {
-    use super::drain_ready;
+    use super::{advance_vm, drain_ready, App, Net, PendingVm, Role, User, VmStage};
+    use crate::sbx::VtxHolder;
+    use std::sync::Arc;
     use tokio::sync::mpsc::unbounded_channel;
 
+    fn holder(kind: &str, stoppable: bool) -> VtxHolder {
+        VtxHolder {
+            label: format!("{kind} VM"),
+            kind: kind.into(),
+            instance: String::new(),
+            stoppable,
+        }
+    }
+
+    fn test_room() -> Arc<fernet::Fernet> {
+        Arc::new(fernet::Fernet::new(&fernet::Fernet::generate_key()).expect("key"))
+    }
+
+    /// The consent gauntlet must walk Open → CloseConflicts when a (stoppable)
+    /// hypervisor holds VT-x, posing a SECOND confirmation rather than acting.
+    #[test]
+    fn advance_vm_open_with_conflict_asks_to_stop_it() {
+        let (app_tx, _ar) = unbounded_channel::<Net>();
+        let (out_tx, _or) = unbounded_channel();
+        let room = test_room();
+        let mut app = App::new("alice".into());
+        let pend = PendingVm {
+            vm: "WinLab".into(),
+            stage: VmStage::Open,
+            conflicts: vec![holder("multipass", true)],
+            needs_install: false,
+        };
+        advance_vm(pend, &mut app, &app_tx, &out_tx, &room);
+        let p = app.pending_vm.as_ref().expect("still pending after gate 1");
+        assert!(matches!(p.stage, VmStage::CloseConflicts));
+        assert!(app
+            .lines
+            .last()
+            .unwrap()
+            .text
+            .contains("second confirmation"));
+    }
+
+    /// Safety invariant: if ANY holder is non-stoppable (something we won't kill),
+    /// the gauntlet refuses — it surfaces an error and drops the pending launch
+    /// rather than advancing or touching the unknown process.
+    #[test]
+    fn advance_vm_refuses_when_a_holder_is_unstoppable() {
+        let (app_tx, _ar) = unbounded_channel::<Net>();
+        let (out_tx, _or) = unbounded_channel();
+        let room = test_room();
+        let mut app = App::new("alice".into());
+        let pend = PendingVm {
+            vm: "WinLab".into(),
+            stage: VmStage::Open,
+            conflicts: vec![holder("unknown", false)],
+            needs_install: false,
+        };
+        advance_vm(pend, &mut app, &app_tx, &out_tx, &room);
+        assert!(app.pending_vm.is_none(), "must not advance past a refusal");
+        assert!(app.error.is_some(), "must surface an error");
+    }
+
+    /// With no VT-x conflict but VirtualBox absent, Open → Install (gate 3).
+    #[test]
+    fn advance_vm_open_needing_install_moves_to_install_gate() {
+        let (app_tx, _ar) = unbounded_channel::<Net>();
+        let (out_tx, _or) = unbounded_channel();
+        let room = test_room();
+        let mut app = App::new("alice".into());
+        let pend = PendingVm {
+            vm: "WinLab".into(),
+            stage: VmStage::Open,
+            conflicts: vec![],
+            needs_install: true,
+        };
+        advance_vm(pend, &mut app, &app_tx, &out_tx, &room);
+        let p = app.pending_vm.as_ref().expect("pending at install gate");
+        assert!(matches!(p.stage, VmStage::Install));
+    }
+
+    /// After confirming the stop, if install is still needed the gauntlet steps
+    /// CloseConflicts → Install (it does not jump straight to launching).
+    #[test]
+    fn advance_vm_closeconflicts_needing_install_steps_to_install() {
+        let (app_tx, _ar) = unbounded_channel::<Net>();
+        let (out_tx, _or) = unbounded_channel();
+        let room = test_room();
+        let mut app = App::new("alice".into());
+        let pend = PendingVm {
+            vm: "WinLab".into(),
+            stage: VmStage::CloseConflicts,
+            conflicts: vec![holder("docker", true)],
+            needs_install: true,
+        };
+        advance_vm(pend, &mut app, &app_tx, &out_tx, &room);
+        let p = app.pending_vm.as_ref().expect("pending at install gate");
+        assert!(matches!(p.stage, VmStage::Install));
+    }
+
+    /// A `_sbx:vm` broadcast from ANOTHER member surfaces a "open your own copy"
+    /// notice to the room.
+    #[test]
+    fn vm_opened_from_peer_notifies_the_room() {
+        let mut app = App::new("alice".into());
+        app.apply(Net::VmOpened {
+            by: "bob".into(),
+            vm: "WinLab".into(),
+        });
+        let last = &app.lines.last().unwrap().text;
+        assert!(last.contains("bob") && last.contains("WinLab"));
+    }
+
+    /// ...but our OWN echo is skipped — we already printed the local "launched"
+    /// line, so we must not double-report it.
+    #[test]
+    fn vm_opened_self_echo_is_skipped() {
+        let mut app = App::new("alice".into());
+        let before = app.lines.len();
+        app.apply(Net::VmOpened {
+            by: "alice".into(),
+            vm: "WinLab".into(),
+        });
+        assert_eq!(app.lines.len(), before, "self-echo must not add a line");
+    }
+
     /// `drain_ready` pulls a bounded burst in FIFO order and stops at the cap.
     #[tokio::test]
     async fn drain_ready_is_fifo_and_capped() {
@@ -1789,6 +2151,64 @@ mod tests {
             }
         }
         assert!(saw_chat, "chat frame must be observed");
-        assert!(turns <= 4, "chat took {turns} turns to surface (expected <= 4)");
+        assert!(
+            turns <= 4,
+            "chat took {turns} turns to surface (expected <= 4)"
+        );
+    }
+
+    fn user(name: &str) -> User {
+        User {
+            user_id: format!("id-{name}"),
+            username: name.into(),
+        }
+    }
+
+    /// The host is the first occupant of the roster, and an empty roster has no
+    /// host — so a freshly-built app (no users yet) confers the title on nobody.
+    #[test]
+    fn host_is_first_roster_member() {
+        let mut app = App::new("alice".into());
+        assert_eq!(app.host(), None, "empty roster has no host");
+        app.users = vec![user("alice"), user("bob")];
+        assert_eq!(app.host(), Some("alice"));
+        // Host follows roster order, not who `me` is.
+        app.users = vec![user("bob"), user("alice")];
+        assert_eq!(app.host(), Some("bob"));
+    }
+
+    /// The host wears the Host badge with zero sandbox activity — Option A: the
+    /// title shows the moment they're in the room, not only after a launch.
+    #[test]
+    fn host_badge_shows_without_a_sandbox() {
+        let mut app = App::new("alice".into());
+        app.users = vec![user("alice"), user("bob")];
+        assert_eq!(app.roles_of("alice"), vec![Role::Host]);
+        assert_eq!(app.roles_of("bob"), vec![Role::Member]);
+    }
+
+    /// Badges stack: a host who summoned a sandbox (sudoer) and can drive holds
+    /// all three at once, in paint order Host → Sudoer → Driver.
+    #[test]
+    fn roles_stack_additively() {
+        let mut app = App::new("alice".into());
+        app.users = vec![user("alice"), user("bob")];
+        app.sudoers.insert("alice".into());
+        app.drivers.insert("alice".into());
+        assert_eq!(
+            app.roles_of("alice"),
+            vec![Role::Host, Role::Sudoer, Role::Driver]
+        );
+    }
+
+    /// A non-host can hold powers independently of the host title: bob granted
+    /// drive shows Driver only — never Host, and not a bare Member.
+    #[test]
+    fn non_host_powers_are_independent_of_the_title() {
+        let mut app = App::new("alice".into());
+        app.users = vec![user("alice"), user("bob")];
+        app.drivers.insert("bob".into());
+        assert_eq!(app.roles_of("bob"), vec![Role::Driver]);
+        assert_eq!(app.roles_of("alice"), vec![Role::Host]);
     }
 }

hh/src/main.rs

@@ -99,7 +99,9 @@ fn main() -> Result<()> {
                 match net::authenticate(&ip, port, &name, &password, no_tls, insecure) {
                     Ok(s) => break s,
                     Err(e) if interactive => {
-                        eprintln!("✖ {e:#}\n  that handle didn't work (taken or full?) — pick another.");
+                        eprintln!(
+                            "✖ {e:#}\n  that handle didn't work (taken or full?) — pick another."
+                        );
                         name = prompt_handle()?;
                     }
                     Err(e) => return Err(e),
@@ -168,7 +170,7 @@ fn main() -> Result<()> {
 fn prompt_handle() -> Result<String> {
     use std::io::Write;
     loop {
-        print!("⛧ choose your handle: ");
+        print!("✝ choose your handle: ");
         std::io::stdout().flush()?;
         let mut s = String::new();
         if std::io::stdin().read_line(&mut s)? == 0 {

hh/src/theme.rs

@@ -134,12 +134,15 @@ impl Theme {
     /// the file, the `name` field, and the `/theme` argument all agree.
     pub fn save(&self, name: &str) -> anyhow::Result<String> {
         let slug = slugify(name);
-        anyhow::ensure!(!slug.is_empty(), "give the vestment a name (letters/digits)");
+        anyhow::ensure!(
+            !slug.is_empty(),
+            "give the vestment a name (letters/digits)"
+        );
         let mut t = self.clone();
         t.name = slug.clone();
         let path = format!("{THEMES_DIR}/{slug}.toml");
-        let body = toml::to_string_pretty(&t)
-            .with_context(|| format!("serialize vestment '{slug}'"))?;
+        let body =
+            toml::to_string_pretty(&t).with_context(|| format!("serialize vestment '{slug}'"))?;
         std::fs::write(&path, body).with_context(|| format!("write {path}"))?;
         Ok(slug)
     }
@@ -165,18 +168,30 @@ fn slugify(name: &str) -> String {
 }
 
 /// Occult glyphs the randomizer can stamp as the title sigil.
-const SIGILS: [&str; 12] = [
-    "✝", "⛧", "☥", "†", "‡", "✟", "♰", "☩", "⸸", "⯐", "✠", "☦",
-];
+const SIGILS: [&str; 12] = ["✝", "⛧", "☥", "†", "‡", "✟", "♰", "☩", "⸸", "⯐", "✠", "☦"];
 
 /// Arcane name fragments — `<adj>-<noun>` makes a memorable vestment name.
 const NAME_ADJ: [&str; 16] = [
-    "ashen", "umbral", "votive", "hollow", "gilded", "wraith", "septic", "occult",
-    "molten", "veiled", "sallow", "rotting", "sacred", "cinder", "obsidian", "vesper",
+    "ashen", "umbral", "votive", "hollow", "gilded", "wraith", "septic", "occult", "molten",
+    "veiled", "sallow", "rotting", "sacred", "cinder", "obsidian", "vesper",
 ];
 const NAME_NOUN: [&str; 16] = [
-    "reliquary", "ossuary", "vestment", "censer", "shroud", "chancel", "crypt", "sepulcher",
-    "litany", "chalice", "rood", "narthex", "thurible", "psalter", "ossein", "vigil",
+    "reliquary",
+    "ossuary",
+    "vestment",
+    "censer",
+    "shroud",
+    "chancel",
+    "crypt",
+    "sepulcher",
+    "litany",
+    "chalice",
+    "rood",
+    "narthex",
+    "thurible",
+    "psalter",
+    "ossein",
+    "vigil",
 ];
 
 /// Convert HSV (h in degrees 0–360, s/v in 0–1) to an 8-bit-per-channel RGB
@@ -272,7 +287,11 @@ roster_width = 24
         let t = Theme::random();
         // Name is `<adj>-<noun>` and the sigil is one of the occult glyphs.
         assert!(t.name.contains('-'), "name should be adj-noun: {}", t.name);
-        assert!(SIGILS.contains(&t.sigil.as_str()), "sigil from set: {}", t.sigil);
+        assert!(
+            SIGILS.contains(&t.sigil.as_str()),
+            "sigil from set: {}",
+            t.sigil
+        );
         assert_eq!(t.roster_width, 22);
         // Surface must stay dark enough to read light ink against it.
         if let Color::Rgb(r, g, b) = t.bg {

hh/src/ui.rs

@@ -1,6 +1,6 @@
 //! ratatui rendering — top bar, chat, roster, input.
 
-use crate::app::{App, ChatLine};
+use crate::app::{App, ChatLine, Role};
 use crate::theme::Theme;
 use ratatui::layout::{Constraint, Layout, Position, Rect};
 use ratatui::style::{Modifier, Style};
@@ -149,36 +149,85 @@ fn help_clusters(theme: &Theme) -> Vec<HelpCluster> {
         HelpCluster {
             title: "SANDBOX",
             items: vec![
-                kv("/sbx launch [backend]", "summon a sandbox: local | docker | multipass"),
+                kv(
+                    "/sbx launch [backend]",
+                    "summon a sandbox: local | docker | multipass",
+                ),
                 kv("/sbx stop", "tear down the sandbox (purges the VM)"),
-                kv("/sbx save [label]", "snapshot state (docker image; survives stop)"),
-                kv("/sbx load <label>", "launch a fresh sandbox from a saved snapshot"),
+                kv(
+                    "/sbx save [label]",
+                    "snapshot state (docker image; survives stop)",
+                ),
+                kv(
+                    "/sbx load <label>",
+                    "launch a fresh sandbox from a saved snapshot",
+                ),
                 kv("/sbx snaps", "list saved snapshots"),
-                kv("/sbx vms", "list local VirtualBox VMs"),
-                kv("/sbx gui <vm>", "boot a VirtualBox VM locally in its GUI"),
-                kv("/drive  ·  F2", "type into the shared shell  (Esc releases)"),
+                kv(
+                    "/drive  ·  F2",
+                    "type into the shared shell  (Esc releases)",
+                ),
+            ],
+        },
+        HelpCluster {
+            title: "VIRTUALBOX (local GUI VM)",
+            items: vec![
+                kv("/sbx vms", "detect VirtualBox + list local VMs"),
+                kv(
+                    "/sbx gui <vm> [--install]",
+                    "open a shared VM locally — host & guest each get their own copy",
+                ),
+                kv(
+                    "/sbx gui yes",
+                    "confirm a pending launch (advance the consent gate)",
+                ),
+                kv(
+                    "/sbx gui cancel",
+                    "abort a pending launch (nothing stopped or installed)",
+                ),
             ],
         },
         HelpCluster {
             title: "AI AGENTS",
             items: vec![
-                kv("/ai start [model|profile]", "spawn an agent (ollama tag or models.toml profile)"),
-                kv("/ai start <model> allow", "spawn + auto-grant the agent sandbox drive"),
+                kv(
+                    "/ai start [model|profile]",
+                    "spawn an agent (ollama tag or models.toml profile)",
+                ),
+                kv(
+                    "/ai start <model> allow",
+                    "spawn + auto-grant the agent sandbox drive",
+                ),
                 kv("/ai stop", "dismiss the agent you started"),
-                kv("/ai <question>", "ask an agent in the room (/ai <name> <q> if many)"),
-                kv("/ai <name> !<task>", "have a granted agent run a task in the sandbox"),
+                kv(
+                    "/ai <question>",
+                    "ask an agent in the room (/ai <name> <q> if many)",
+                ),
+                kv(
+                    "/ai <name> !<task>",
+                    "have a granted agent run a task in the sandbox",
+                ),
                 kv("/ai list", "list AI agents present + their provider/model"),
-                kv("/ai models", "show models the active agent's backend can serve"),
+                kv(
+                    "/ai models",
+                    "show models the active agent's backend can serve",
+                ),
             ],
         },
         HelpCluster {
             title: "PERMISSIONS (owner)",
             items: vec![
-                kv("/grant <user|agent>", "let a member OR an AI agent drive the shell"),
+                kv(
+                    "/grant <user|agent>",
+                    "let a member OR an AI agent drive the shell",
+                ),
                 kv("/revoke <user|agent>", "take back sandbox drive permission"),
                 kv("/sudo <user>", "delegate VM superuser (real sudo)"),
                 kv("/unsudo <user>", "revoke VM superuser"),
-                kv("/ai start <name> allow", "shortcut: grant the agent drive at spawn"),
+                kv(
+                    "/ai start <name> allow",
+                    "shortcut: grant the agent drive at spawn",
+                ),
             ],
         },
         HelpCluster {
@@ -193,8 +242,14 @@ fn help_clusters(theme: &Theme) -> Vec<HelpCluster> {
             title: "APPEARANCE",
             items: vec![
                 kv("/theme [name]", &theme_help),
-                kv("/theme save [name]", "keep the vestment you're wearing for reuse"),
-                kv("Ctrl+Alt+P  ·  /theme random", "conjure a random vestment (palette + sigil)"),
+                kv(
+                    "/theme save [name]",
+                    "keep the vestment you're wearing for reuse",
+                ),
+                kv(
+                    "Ctrl+Alt+P  ·  /theme random",
+                    "conjure a random vestment (palette + sigil)",
+                ),
             ],
         },
         HelpCluster {
@@ -204,19 +259,33 @@ fn help_clusters(theme: &Theme) -> Vec<HelpCluster> {
                 kv("F1  ·  /help", "toggle this help"),
                 kv("Ctrl-C  (while driving)", "interrupt the running command"),
                 kv("PgUp / PgDn", "scroll chat  ·  Home/End = oldest/live"),
-                kv("PgUp / PgDn  (driving)", "scroll the sandbox terminal's scrollback"),
-                kv("Up / Down  ·  wheel", "scroll the sandbox terminal (mouse works while driving)"),
-                kv("Ctrl-R  (when closed)", "reconnect to the house after a drop / AFK"),
+                kv(
+                    "PgUp / PgDn  (driving)",
+                    "scroll the sandbox terminal's scrollback",
+                ),
+                kv(
+                    "Up / Down  ·  wheel",
+                    "scroll the sandbox terminal (mouse works while driving)",
+                ),
+                kv(
+                    "Ctrl-R  (when closed)",
+                    "reconnect to the house after a drop / AFK",
+                ),
                 kv("/pw", "show this room's password (local only)"),
                 kv("Ctrl-C  ·  Ctrl-Q", "quit hack-house"),
             ],
         },
         HelpCluster {
-            title: "ROSTER GLYPHS",
-            items: vec![kv(
-                &format!("{} owner   ⚡ sudoer", theme.sigil),
-                "◆ may drive    • member",
-            )],
+            title: "ROSTER GLYPHS (badges stack)",
+            items: vec![
+                kv(
+                    &format!("{} host", theme.sigil),
+                    "opened the house (first in the room)",
+                ),
+                kv("⚡ sudoer", "VM superuser in the sandbox"),
+                kv("◆ driver", "may drive the shell"),
+                kv("• member", "present — no extra powers"),
+            ],
         },
     ]
 }
@@ -231,7 +300,9 @@ pub fn help_cluster_count(theme: &Theme) -> usize {
 /// scroll math always matches what's painted.
 fn help_render_lines(app: &App, theme: &Theme) -> Vec<Line<'static>> {
     let clusters = help_clusters(theme);
-    let acc = Style::default().fg(theme.accent).add_modifier(Modifier::BOLD);
+    let acc = Style::default()
+        .fg(theme.accent)
+        .add_modifier(Modifier::BOLD);
     let sel = Style::default()
         .fg(theme.bg)
         .bg(theme.accent)
@@ -260,7 +331,9 @@ fn help_render_lines(app: &App, theme: &Theme) -> Vec<Line<'static>> {
     }
     lines.push(Line::from(Span::styled(
         "  ↑/↓ select · ←/→ or Enter expand · PgUp/PgDn scroll · Esc closes",
-        Style::default().fg(theme.dim).add_modifier(Modifier::ITALIC),
+        Style::default()
+            .fg(theme.dim)
+            .add_modifier(Modifier::ITALIC),
     )));
     lines
 }
@@ -375,8 +448,12 @@ fn fmt_line<'a>(l: &'a ChatLine, app: &App, theme: &Theme) -> Line<'a> {
     } else {
         theme.other
     };
+    // Author's current badge inline, so a message's authority is legible right
+    // in the transcript — not only in the clergy panel.
+    let badges = role_badges(app, &l.username, theme);
     Line::from(vec![
         Span::styled(format!("{} ", l.ts), Style::default().fg(theme.dim)),
+        Span::styled(format!("{badges} "), Style::default().fg(theme.dim)),
         Span::styled(
             l.username.clone(),
             Style::default().fg(name_color).add_modifier(Modifier::BOLD),
@@ -400,12 +477,16 @@ fn draw_chat(f: &mut Frame, area: ratatui::layout::Rect, app: &App, theme: &Them
         lines.push(Line::from(vec![
             Span::styled(
                 format!("{name} "),
-                Style::default().fg(theme.other).add_modifier(Modifier::BOLD),
+                Style::default()
+                    .fg(theme.other)
+                    .add_modifier(Modifier::BOLD),
             ),
             Span::styled("⠿ ", Style::default().fg(theme.dim)),
             Span::styled(
                 text.as_str(),
-                Style::default().fg(theme.dim).add_modifier(Modifier::ITALIC),
+                Style::default()
+                    .fg(theme.dim)
+                    .add_modifier(Modifier::ITALIC),
             ),
         ]));
     }
@@ -436,26 +517,39 @@ fn draw_chat(f: &mut Frame, area: ratatui::layout::Rect, app: &App, theme: &Them
     f.render_widget(chat, area);
 }
 
+/// Glyph for a single role. The host sigil is theme-dependent (✝ for crypt, ⛧
+/// for the default), the rest are fixed.
+fn role_glyph(role: Role, theme: &Theme) -> &str {
+    match role {
+        Role::Host => theme.sigil.as_str(),
+        Role::Sudoer => "⚡",
+        Role::Driver => "◆",
+        Role::Member => "•",
+    }
+}
+
+/// The stacked badge string for `name` — e.g. `⛧⚡◆` for a host who summoned a
+/// sandbox and can drive, or a lone `•` for a plain member. Single source of
+/// truth shared by the roster and the chat author prefix so both always agree
+/// with each other and with what the broker enforces.
+fn role_badges(app: &App, name: &str, theme: &Theme) -> String {
+    app.roles_of(name)
+        .into_iter()
+        .map(|r| role_glyph(r, theme))
+        .collect()
+}
+
 fn draw_roster(f: &mut Frame, area: ratatui::layout::Rect, app: &App, theme: &Theme) {
     let items: Vec<ListItem> = app
         .users
         .iter()
         .map(|u| {
             let me = u.username == app.me;
-            // <sigil> owner · ⚡ sudoer (VM superuser) · ◆ may drive · • member
-            let owner = app.owner.as_deref() == Some(u.username.as_str());
-            let mark = if owner {
-                theme.sigil.as_str()
-            } else if app.sudoers.contains(&u.username) {
-                "⚡"
-            } else if app.drivers.contains(&u.username) {
-                "◆"
-            } else {
-                "•"
-            };
+            // Stacked badges: <sigil> host · ⚡ sudoer · ◆ driver · • member.
+            let badges = role_badges(app, &u.username, theme);
             let color = if me { theme.roster_me } else { theme.other };
             ListItem::new(Line::from(Span::styled(
-                format!(" {mark} {}", u.username),
+                format!(" {badges} {}", u.username),
                 Style::default().fg(color),
             )))
         })