diff --git a/README.md b/README.md
index 81ad0d6..b0c24c8 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 > **Live coding audio-visual performance system** built around a SuperCollider sound engine, an openFrameworks oscilloscope visualizer driven by a real Hantek 6022BL USB scope, a macOS menubar launcher, and a Metal-native pose / body-mesh visualizer that listens to the same audio bus.
 >
-> 15 scripted demoparties · ~47 fullscreen visuals (26 3D parametric meshes + 18 procedural shaders + 3 dedicated C++ scenes) · 5 OS pixel-art shaders · 14 retro OS logos · 33 GLSL shader pairs (~65 files) · 1099 SynthDefs across 368 tracks (23 albums × 16) · 11 real-world data feeds · 7 pose-estimation backends — all reactive to the audio physically passing through the scope probes.
+> 15 scripted demoparties · ~47 fullscreen visuals (26 3D parametric meshes + 18 procedural shaders + 3 dedicated C++ scenes) · 5 OS pixel-art shaders · 14 retro OS logos · 33 GLSL shader pairs (~65 files) · 1099 SynthDefs across 368 tracks (23 albums × 16) · **20 real-world data feeds** · 7 pose-estimation backends · **SMPL-X body mesh** (10 475 vertices via Multi-HMR + RealityKit) · **3 launch modes** (Full / Data-only / Body Mesh) — all reactive to the audio physically passing through the scope probes.
 
 ## Top-level architecture
 
@@ -136,9 +136,15 @@ Each act lasts 12–55 s, transitions between acts trigger flash + glitch postfx
 - `Espace` — manual glitch pulse
 - `F1`–`F5` — fullscreen / GUI / postFx / autoglitch / reload shaders
 
-### 🌐 Real-world data feeds — `data_feeds/` + `web_realart/`
-- **11 feed modules** in `data_feeds/feeds/` ingested by `bridge.py` and broadcast as OSC `/data/<source>/<sub>` to SC (`:57121`), oF (`:57123`) and the web bridge (`:57124`) :
-  USGS quakes · NOAA SWPC (solar wind, Bz IMF, Kp, X-ray flares) · Mainsfrequenz.de · RTE eCO2mix · Blitzortung lightning · OpenSky ADS-B · Bluesky firehose · Bitcoin mempool · GitHub events · GCN astrophysics · YOLOv8 webcam pose
+### 🌐 Real-world data feeds — `data_feeds/` + `web_realart/` + `data_only_viz/web/`
+- **20 feed modules** in `data_feeds/feeds/` ingested by `bridge.py` and broadcast as OSC `/data/<source>/<sub>` to SC (`:57121`), oF (`:57123`) and the web bridge (`:57124`) :
+  - **Geophysique** : USGS quakes · Smithsonian GVP volcanoes · Blitzortung lightning
+  - **Meteo / Air** : Open-Meteo (temp/wind/rain) · OpenAQ (PM2.5/PM10/NO2/O3)
+  - **Espace** : NOAA SWPC (solar wind, Bz IMF, Kp, X-ray) · ISS position (wheretheiss.at) · GCN astrophysics
+  - **Mobilite** : OpenSky ADS-B · LiveATC listeners
+  - **Energie / reseau** : Mainsfrequenz.de · RTE eCO2mix · NOAA tides + moon phase
+  - **Social / numerique** : Bluesky firehose · Reddit /r/all + HackerNews top · Wikipedia EventStream · GDELT 2.0 events · GitHub · Bitcoin mempool
+  - **Pose / webcam** : YOLOv8-pose
 - **SC presets** `sound_algo/examples/16_data_feeds.scd` and `17_data_feeds_more.scd` map each source to synthesis : Schumann cavity drone (foudre), aurora additive pad (Bz/wind/Kp), Netzfrequenz pulse kick, RTE 8-op carbon FM, OpenSky granular swarm
 - **Web standalone** `web_realart/` ports the visualizers and synths to the browser for `real.art.saillant.cc` :
   - **WebGPU + three.js TSL** (r171) globe with quake/strike/flight particles (auto-fallback WebGL2)
@@ -146,6 +152,12 @@ Each act lasts 12–55 s, transitions between acts trigger flash + glitch postfx
   - **Hydra** with 7 data-driven patches (aurora, quake, lightning, flightmap, gridpulse, solarwind, bskyrain)
   - All three layers share `feeds_client.js` (`window.feeds`) over one WebSocket
 
+- **Web data-only** `data_only_viz/web/` (port `:3211`, Express + WebSocket) — **bidirectional** OSC bridge for the Data-only mode :
+  - **`/dashboard.html`** — live cards + SVG sparklines for all 19 active feeds (USGS, GDELT, Wiki, ISS, tides + moon, ATC, ...) with severity classes (alert / warn / green)
+  - **`/map.html`** — Leaflet dark fullscreen with markers ephemeres for geocoded feeds (quakes, lightning, planes, volcanoes, GDELT events) + persistent ISS marker
+  - **`/control.html`** — 3-pane control surface : 7 synth/mix sliders (master, cutoff, reso, reverb, delay, tempo), 10 audio scene buttons (`/scene/play`), 9 visual mode buttons routed to oF (`/control/vizMode` → `:57123`), XY pad (`/xy/{x,y}`)
+  - **SC retour** : `sound_algo/control/web_bridge.scd` listens on `:57121` for `/control/*` `/scene/*` `/xy/*` and pushes `/sync/bpm|beat|rms|voices` to web on `:57125` at 4 Hz
+
 ### 📡 Audio reactivity pipeline
 
 ASCII :
@@ -231,7 +243,13 @@ uv run python -m data_only_viz.main
 open AV-Live/launcher/build/AVLiveLauncher.app
 ```
 
-The launcher autostarts `sclang` + `oscope-of` + `node` (web UI) and can spawn `data_only_viz` from the menubar mode picker. Open the menubar icon for status, logs, restart controls.
+The launcher autostarts `sclang` + the relevant visualizers + the web bridges depending on the **3 launch modes** offered by the picker at startup :
+
+- **Full AV-Live** — sclang + oscope-of + sound_algo web UI (`:3000`) + data_feeds (full profile)
+- **Data-only** — sclang + `data_only_viz` Metal viz + data_feeds (data-only profile) + sound_algo web UI + **data-only dashboard** (`:3211` with `/dashboard.html`, `/map.html`, `/control.html`)
+- **Body Mesh** — sclang + `data_only_viz` (headless, Multi-HMR worker only) + **`AVLiveBody`** Swift app (RealityKit, SMPL-X mesh + webcam overlay + live `RenderSettings` panel `S`) + data_feeds + dashboard data-only
+
+Open the menubar icon for per-process Start/Stop, logs, and the "AV-Live-Body" launch button available from any mode.
 
 ### Without Hantek hardware
 
@@ -252,7 +270,10 @@ The `0` GREETINGS demo cycles through 18 acts including Boing Ball, plasma C64,
 | Visualizer | `oscope-of/` | openFrameworks 0.12, GLSL 150 GL 3.2 core, ~6k LOC C++ |
 | Pose / body mesh | `data_only_viz/` | Python 3.11+ / `uv`, Metal natif via pyobjc, 7 pose backends |
 | Launcher | `launcher/` | SwiftUI universal app, sentinel-based restart, ProcessManager `@MainActor` |
-| Real-world feeds | `data_feeds/` | Python `uv`, 11 async feed modules, `bridge.py` OSC fan-out |
+| Real-world feeds | `data_feeds/` | Python `uv`, 20 async feed modules, `bridge.py` OSC fan-out (3 targets) |
+| Data-only web | `data_only_viz/web/` | Node Express `:3211` + WS bidir bridge OSC, dashboard / map / control |
+| Body mesh app | `launcher/AV-Live-Body/` | Swift 6 + RealityKit, SMPL-X 10 475 verts, LowLevelMesh + wireframe |
+| Multi-HMR worker | `data_only_viz/multi_hmr_worker.py` | PyTorch MPS, AVCaptureSession native, TCP sender :57130 |
 | Web standalone | `web_realart/` | Node Express + ws, WebGPU three.js r171 + Web Audio + Hydra |
 | Audio FFT | `oscope-of/src/AudioAnalyzer.{h,cpp}` | downsample + Hann + FFT 2048 |
 | 3D models | `oscope-of/bin/data/models/` | 27 PLY parametric meshes |
diff --git a/data_feeds/README.md b/data_feeds/README.md
index 04604dc..6854b87 100644
--- a/data_feeds/README.md
+++ b/data_feeds/README.md
@@ -1,10 +1,12 @@
 # data_feeds — Pont flux temps réel → OSC
 
-Worker Python asynchrone qui aspire des sources publiques (sismique,
-géophysique, réseau électrique, foudre, aviation, social, blockchain…)
-et les rebalance en OSC vers SuperCollider (`:57121`) et openFrameworks
-(`:57123`). Le but : nourrir l'engine audio et le visualizer avec des
-**signaux du monde réel**, sans bricoler du networking dans `sclang`.
+Worker Python asynchrone qui aspire **20 sources publiques** (sismique,
+geophysique, meteo, qualite de l'air, espace, energie, foudre, aviation,
+social, blockchain, evenements monde…) et les rebalance en OSC vers
+SuperCollider (`:57121`), openFrameworks (`:57123`) et le dashboard web
+data-only (`:57124`). Le but : nourrir l'engine audio et le visualizer
+avec des **signaux du monde reel**, sans bricoler du networking dans
+`sclang`.
 
 ## Architecture
 
@@ -72,16 +74,26 @@ complet.
 | `opensky`      | `count`, `plane`                            | 15 s        |
 | `bluesky`      | `post`, `rate`                              | event-based |
 | `mempool`      | `tx`, `block`                               | event-based |
-| `rte_eco2mix`  | `mix`                                       | 15 min      |
-| `github`       | `event`                                     | 30 s        |
+| `rte_eco2mix`  | `mix`, `co2`                                | 15 min      |
+| `github`       | `event`, `rate`                             | 30 s        |
 | `gcn`          | `alert`                                     | rare        |
 | `pose`         | `count`, `person`, `skel`, `bone`           | ~20 fps     |
+| `openmeteo`    | `now` (temp, hum, wind, press, rain)        | 10 min      |
+| `openaq`       | `now` (PM2.5, PM10, NO2, O3)                | 15 min      |
+| `iss`          | `pos` (lat, lon, alt, vel), `pass`          | 5 s         |
+| `volcano`      | `active`, `eruption`                        | 1 h         |
+| `social_buzz`  | `reddit`, `hn`, `pulse`                     | 1 min       |
+| `gdelt`        | `batch`, `event` (lat, lon, tone, country)  | 15 min      |
+| `wikimedia`    | `edit`, `rate`                              | streaming   |
+| `tides`        | `level` (obs/pred/residual), `moon`         | 6 min       |
+| `atc`          | `hub` (icao, listeners), `total`            | 5 min       |
 
 ## Configuration
 
 Éditer `config.toml` :
 
-- `osc.targets` : liste `{host, port}` à arroser (par défaut SC + oF).
+- `osc.targets` : liste `{host, port}` à arroser. Profil data-only
+  par défaut : SC `:57121` + oF `:57123` + web data-only `:57124`.
 - `feeds.<name>.enabled` : booléen.
 - `feeds.<name>.poll_seconds` : période pour les feeds HTTP.
 - `feeds.opensky.bbox` : `[lamin, lomin, lamax, lomax]` (Lyon par défaut).
diff --git a/data_only_viz/web/README.md b/data_only_viz/web/README.md
new file mode 100644
index 0000000..6fa15e6
--- /dev/null
+++ b/data_only_viz/web/README.md
@@ -0,0 +1,132 @@
+# data_only_viz/web — Dashboard data-only
+
+Pont **bidirectionnel** Express + WebSocket pour le mode Data-only
+(et Body Mesh) d'AV-Live. Sert 3 pages temps reel et fait le bridge
+entre :
+
+- les 20 feeds Python (`data_feeds/bridge.py`) sur OSC `:57124`
+- le navigateur via WebSocket
+- SuperCollider (`sclang`) sur OSC `:57121` (out) et `:57125` (sync in)
+- openFrameworks (`oscope-of`) sur OSC `:57123` pour les `vizMode`
+
+## Architecture
+
+```text
+   data_feeds bridge.py
+        |  OSC :57124
+        v
+   server.js (Express :3211 + WS)  <----- SC sync :57125 (/sync/*)
+        |
+        +---> dashboard.html  (cards + sparklines SVG vanilla)
+        +---> map.html        (Leaflet dark + markers temps reel)
+        +---> control.html    (sliders + scenes + viz modes + XY pad)
+                       |
+                       v WS -> OSC out
+                       :57121 SC  (/control/* /scene/play /xy/*)
+                       :57123 oF  (/control/vizMode)
+```
+
+## Demarrage
+
+```sh
+cd data_only_viz/web
+npm install        # une fois
+HTTP_PORT=3211 node server.js
+# ou via le launcher : mode dataOnly ou bodyMesh -> "Dashboard data-only"
+```
+
+URLs :
+
+- `http://127.0.0.1:3211/dashboard.html`
+- `http://127.0.0.1:3211/map.html`
+- `http://127.0.0.1:3211/control.html`
+
+## Pages
+
+### `/dashboard.html`
+
+Grille responsive de 18 cards live, une par source de donnees.
+Chaque card affiche :
+
+- valeur courante (numerique formate)
+- ligne sub (contexte : unite, timestamp, info secondaire)
+- sparkline SVG vanilla 100x30, dernieres 64-128 valeurs
+- classe `.alert` / `.warn` / `.green` selon seuils (ex: Kp >= 6
+  alert, PM2.5 > 35 alert, tone GDELT < -5 alert)
+
+Cards couvertes : usgs, swpc (kp/wind/bz/xray), blitzortung,
+opensky, bluesky, openmeteo, openaq, iss (pos + pass),
+volcano, social_buzz (reddit/hn/pulse), netzfrequenz, gdelt,
+wikimedia (rate + edits), tides + moon, atc, pose, mempool,
+github, rte_eco2mix (mix + co2).
+
+### `/map.html`
+
+Leaflet dark fullscreen (CartoDB) avec :
+
+- markers ephemeres (TTL 60 s) : seismes (pink), foudre (jaune),
+  avions (vert), volcans (orange), GDELT events (purple)
+- 1 marker ISS persistant (bleu, contour blanc) qui suit la
+  position temps reel
+- HUD coin haut-gauche : statut connexion + compteur d'events
+  + liens vers dashboard et control
+
+### `/control.html`
+
+Surface de controle 3 colonnes :
+
+| Colonne | Contenu | Endpoint OSC |
+|---------|---------|--------------|
+| Synthes & mix | 7 sliders : master_gain, cutoff, reso, reverb_mix, delay_time, delay_feedback, tempo | `/control/<name>` -> SC :57121 |
+| Scenes audio + retour SC | 10 boutons scenes (cavity/geo/body/weather/flight/pulse/quiet/all/full/stop) + labels BPM/Beat/RMS/Voies retournes par SC | `/scene/play <name>` -> SC :57121 |
+| Modes visuels + XY pad | 9 boutons (storm/tunnel/plasma/kaleido/voronoi/metaballs/stars/bars/hands3d) + XY pad pour FX | `/control/vizMode <idx>` -> oF :57123<br/>`/xy/{x,y} <f>` -> SC :57121 |
+
+Les sliders envoient sur drag (input event). Les boutons scenes
+et viz toggle visuellement actif. Le XY pad envoie sur
+pointerdown/pointermove (Y inverse pour avoir up=1).
+
+## Variables d'environnement
+
+```sh
+HTTP_PORT=3211      # port HTTP + WS
+OSC_DATA_IN=57124   # feeds IN
+OSC_SYNC_IN=57125   # SC sync IN
+SC_HOST=127.0.0.1
+SC_PORT_OUT=57121   # /control/* /scene/* /xy/*
+OF_PORT_OUT=57123   # /control/vizMode
+```
+
+## Protocole WebSocket
+
+Tous les messages WS sont du JSON :
+
+```js
+// server -> browser (feed) :
+{ t: 1715600000000, kind: "feed", feed: "usgs", sub: "event",
+  args: [lat, lon, mag] }
+
+// server -> browser (SC sync) :
+{ t: 1715600000000, kind: "sync", sub: "bpm", args: [120.0] }
+
+// browser -> server (control) :
+{ path: "/control/master_gain", args: [0.8] }
+{ path: "/scene/play", args: ["body"] }
+{ path: "/xy/x", args: [0.42] }
+{ path: "/control/vizMode", args: [3] }
+```
+
+Le serveur replay les ~100 derniers events a chaque nouvelle
+connexion WS (ring buffer 500 entrees).
+
+## Cote SC : `sound_algo/control/web_bridge.scd`
+
+Charge automatiquement par `boot.data-only.scd` apres
+`data_feeds.scd`. Installe les OSCdef `/control/*` `/scene/play`
+`/xy/*` sur :57121, et pousse `/sync/bpm|beat|rms|voices` vers
+`NetAddr("127.0.0.1", 57125)` a 4 Hz via une `Routine` `AppClock`.
+
+Variable d'env `~webState` partagee pour debug REPL :
+
+```supercollider
+~webState.postln;        // -> ( masterGain: 0.8, cutoff: 1200, ... )
+```
diff --git a/launcher/README.md b/launcher/README.md
index 074cc58..9e025fa 100644
--- a/launcher/README.md
+++ b/launcher/README.md
@@ -1,44 +1,96 @@
 # AVLiveLauncher
 
-macOS menubar launcher for AV-Live. Starts and stops `sclang` (which
-auto-loads `sound_algo/00_load.scd` and serves the web UI), the
-`oscope-of` visualizer, and the `data_feeds` Python bridge (USGS,
-SWPC, grid frequency, lightning, pose, etc. → OSC) with one click
-each, and aggregates their logs in one window.
+macOS menubar launcher for AV-Live. Coordonne le lancement / arret de
+toutes les briques (sclang, oscope-of, data_only_viz, data_feeds, web
+UI, dashboard data-only, AV-Live-Body RealityKit) selon le **mode**
+choisi au demarrage.
 
 ## Build
 
-Requires Swift 5.7+ and Xcode Command Line Tools.
+Requires Swift 6.0+ and Xcode Command Line Tools.
 
 ```sh
 cd launcher
-./build.sh
+./build.sh                                    # universal arm64+x86_64
 open build/AVLiveLauncher.app
+
+# Build AV-Live-Body (RealityKit, app SwiftPM independante)
+cd AV-Live-Body
+swift build -c release
 ```
 
-The first run shows a `waveform.path.ecg` icon in the menubar. Click it
-to open the popover.
+Le premier lancement affiche un `waveform.path.ecg` dans la menubar.
+Clic = popover.
 
-## Configuration
+## Les 3 modes (picker au demarrage)
 
-Three paths are stored in `UserDefaults` (`~/Library/Preferences/cc.saillant.AVLiveLauncher.plist`) :
+| Mode | Process lances | Use case |
+|------|---------------|----------|
+| **Full AV-Live** | SC + oscope-of + web UI `:3000` + data_feeds | Studio complet avec Hantek + Hydra |
+| **Data-only** | SC + Metal Viz Python + data_feeds + web UI + dashboard `:3211` | Performance autonome sans Hantek, scenes data-driven |
+| **Body Mesh** | SC + Multi-HMR headless + AVLiveBody (RealityKit) + data_feeds + dashboard | Mocap performatif, mesh SMPL-X 10 475 verts overlay cam |
 
-| Default | Override |
+Le picker peut etre desactive (`Ne plus afficher`) ; il revient au
+dernier mode utilise. Le mode peut etre change a tout moment depuis le
+menubar — `applyModeTransition` arrete proprement les process
+incompatibles (ex: oF coupe en `.dataOnly`).
+
+## AV-Live-Body — panneau de reglages live
+
+L'app SwiftPM `launcher/AV-Live-Body/` ouvre une fenetre RealityKit
+qui affiche la webcam built-in + le mesh SMPL-X recu en TCP `:57130`.
+Touche **`S`** ou le bouton coin haut-droit ouvre un panel a 5
+sections :
+
+| Section | Reglages |
 |---------|----------|
+| Couches | toggles webcam / mesh / fil de fer / squelette |
+| Webcam | opacite 0..1 |
+| Maillage | metallique, rugosite |
+| Lumieres | key / fill / rim (0..10 000) |
+| Vue | FOV (20..120°), luminosite du fond |
+
+Tous appliques en live dans `BodyView.updateNSView`. L'app est
+lancable depuis n'importe quel mode via la row "AV-Live-Body" du
+menubar.
+
+## Configuration des chemins
+
+Paths persistes dans `UserDefaults` (`~/Library/Preferences/cc.saillant.AVLiveLauncher.plist`) :
+
+| Defaut | Override |
+|--------|----------|
 | `/Applications/SuperCollider.app/Contents/MacOS/sclang` | Paths… → sclang binary |
-| `~/Documents/Projets/AV-Live/sound_algo/00_load.scd` | Paths… → load file |
-| `~/Documents/Projets/AV-Live/oscope-of/bin/oscope-of` | Paths… → oscope binary |
+| `~/Documents/Projets/AV-Live/sound_algo/boot.scd` | Paths… → load file |
+| `~/Documents/Projets/AV-Live/oscope-of/bin/oscope-of.app/.../oscope-of` | Paths… → oscope binary |
 | `/opt/homebrew/bin/uv` (or `~/.local/bin/uv`) | Paths… → uv binary |
 | `~/Documents/Projets/AV-Live/data_feeds` | Paths… → data_feeds directory |
+| `~/Documents/Projets/AV-Live/data_only_viz` | Paths… → data_only_viz dir |
 
-## What it does
+## Process spawnes — table de routage
 
-- Spawns `sclang <load_file>` with stdout/stderr captured into the log
-  window. `sclang` itself boots `scsynth`, loads the 1099-SynthDef
-  palette, and serves the web bridge on `:8080`.
-- Spawns the `oscope-of` binary with cwd set to its parent directory
-  (so oF can find `bin/data/`).
-- Spawns `uv run python bridge.py -v` in `data_feeds/` for the real-world
-  flux → OSC bridge. Off by default (Auto-start data_feeds toggle in
-  Settings to enable). uv auto-syncs the venv on first run.
-- Quitting the menubar app sends `SIGTERM` to all children.
+```
+sclang        : Process sclang + boot.scd (mode-dependent boot file)
+oscope-of     : Process .app bundle (capture Hantek + visuals)
+metalviz      : uv run python -m data_only_viz.main [--multi-hmr]
+                                                    [--fullscreen]
+web           : node sound_algo/web/server.js :3000  (control + Hydra)
+dataweb       : node data_only_viz/web/server.js :3211 (dashboard data-only)
+data_feeds    : uv run python bridge.py [-c config.data-only.toml]
+body          : swift run AVLiveBody (RealityKit, :57130 TCP listener)
+```
+
+Chaque process a son terminationHandler avec restart sentinel
+(`metalVizWantsRestart` etc.) — pas de zombies. Tous les stdouts sont
+captures dans `LogView`.
+
+## Ports OSC
+
+| Port | Direction | Role |
+|------|-----------|------|
+| 57121 | UDP | sclang OSCdef IN (data_feeds + web control) |
+| 57122 | UDP | sclang -> web sound_algo (BPM/sync) |
+| 57123 | UDP | oscope-of OSC IN + web /control/viz* |
+| 57124 | UDP | data_only_viz/web dashboard OSC IN (data_feeds) |
+| 57125 | UDP | data_only_viz/web sync IN (SC -> web BPM/RMS) |
+| 57130 | TCP | AVLiveBody (RealityKit) - SMPL-X vertices binaire |