diff --git a/launcher/Sources/AVLiveLauncher/ProcessManager.swift b/launcher/Sources/AVLiveLauncher/ProcessManager.swift
index 9ca969c..1fb15a2 100644
--- a/launcher/Sources/AVLiveLauncher/ProcessManager.swift
+++ b/launcher/Sources/AVLiveLauncher/ProcessManager.swift
@@ -64,8 +64,12 @@ final class ProcessManager: ObservableObject {
 
         sclangPath = defaults.string(forKey: "sclangPath")
             ?? "/Applications/SuperCollider.app/Contents/MacOS/sclang"
+        // Prefer boot.scd (single-block, auto-executable by sclang CLI) over
+        // 00_load.scd which is split into ~32 IDE-only Cmd+Enter blocks.
+        let bootCandidate    = "\(avLive)/sound_algo/boot.scd"
+        let legacyCandidate  = "\(avLive)/sound_algo/00_load.scd"
         soundAlgoLoadFile = defaults.string(forKey: "soundAlgoLoadFile")
-            ?? "\(avLive)/sound_algo/00_load.scd"
+            ?? (fm.fileExists(atPath: bootCandidate) ? bootCandidate : legacyCandidate)
 
         // openFrameworks Release produces a .app bundle in bin/. Default to the
         // executable inside the bundle, with fallback to the bare binary if
@@ -215,6 +219,12 @@ final class ProcessManager: ObservableObject {
 
     func stopSclang() {
         sclangProc?.terminate()
+        // sclang's terminate doesn't always tear scsynth down cleanly —
+        // run a belt-and-braces pkill so the next boot can grab :57110.
+        let kill = Process()
+        kill.executableURL = URL(fileURLWithPath: "/usr/bin/pkill")
+        kill.arguments = ["-f", "scsynth"]
+        try? kill.run()
     }
 
     // MARK: - oscope-of
diff --git a/sound_algo/boot.scd b/sound_algo/boot.scd
new file mode 100644
index 0000000..4130de8
--- /dev/null
+++ b/sound_algo/boot.scd
@@ -0,0 +1,29 @@
+// =====================================================================
+//  boot.scd  --  Entry point auto-executable for sclang CLI
+//
+//  00_load.scd is split into ~32 IDE-friendly top-level blocks
+//  (Cmd+Enter per block in SCIDE), which means it does NOT auto-run
+//  when sclang is launched with `sclang 00_load.scd`. This file wraps
+//  the actual boot sequence in ONE single top-level block so the
+//  launcher (or any `sclang boot.scd` invocation) brings the engine
+//  + palette + live wrappers + tracks + web bridge up automatically.
+//
+//  Execution order :
+//    1. derive ~base from this file's location
+//    2. .load live/_load.scd  (which itself loads engine, synth, fx,
+//       palette, setup, ~setupAll, tracks/_index, web_bridge, then
+//       starts the Pdef sequencers)
+//
+//  Usage :
+//    sclang /path/to/AV-Live/sound_algo/boot.scd
+//      OR (in IDE)
+//    Cmd+Enter on this block.
+// =====================================================================
+(
+~base = (thisProcess.nowExecutingPath !? { |p| p.dirname ++ "/" })
+        ?? { File.getcwd ++ "/" };
+
+("[boot] ~base = " ++ ~base).postln;
+
+(~base ++ "live/_load.scd").load;
+)
diff --git a/sound_algo/tracks/_index.scd b/sound_algo/tracks/_index.scd
index f8dc410..2722aef 100644
--- a/sound_algo/tracks/_index.scd
+++ b/sound_algo/tracks/_index.scd
@@ -98,9 +98,13 @@
 
 
 // =====================================================================
-//  RACCOURCIS LIVE -- Cmd+Entree sur la ligne souhaitee
+//  RACCOURCIS LIVE -- Cmd+Entree sur la ligne souhaitee dans l'IDE.
+//  Commentes pour permettre `.load` de ce fichier sans erreur de parse :
+//  sclang refuse plusieurs blocs `(...)` top-level dans un meme load.
+//  Decommenter au besoin dans l'IDE.
 // =====================================================================
 
+/*
 ( ~listAlbums.(); )                      // liste les 23 albums
 ( ~listTracks.(\A); )                    // liste les 15 tracks de A
 ( ~listTracks.(\Q); )                    // liste les 15 tracks de Q
@@ -112,3 +116,4 @@
 ( ~playAlbum.(\A); )                     // album A en entier
 ( ~playAlbum.(\J); )                     // album J ambient
 ( ~stopAlbum.(); )                       // stop immediat
+*/