diff --git a/MEMORY.md b/MEMORY.md
new file mode 100644
index 0000000..3a83677
--- /dev/null
+++ b/MEMORY.md
@@ -0,0 +1,11 @@
+- [HANDOFF Sesion 2 → 3 (LEER PRIMERO)](handoff_session_2_to_3.md) — estado al 2026-04-13, tareas inmediatas, decisiones pendientes, prueba visual del Navigator no ejecutada
+- [Convencion de naming Origin (acordada 2026-04-13)](decision_naming_convention.md) — arkhe-* render/audio | nigiro-* networking/P2P | origin-* cross-domain. PENDIENTE confirmar rename origin-aoi → nigiro-aoi
+- [Plan C activo — Larihana porteando Hypercore Rust](project_plan_c_hypercore_rust.md) — port completo Holepunch JS → Rust. Artifact: nigiro-hypercore (no arkhe-)
+- [Origin Palace ACTIVO via MCP](system_palace_active.md) — 19+ tools, usar palace_* para memoria persistente. PENDIENTE poblar con hitos Fase 2
+- [David Herran — Director de Convergencia Tecnologica](user_david_herran.md) — Rust/TS/Svelte, filosofia local-first, estilo directo. Arkhos primero, Ergon segundo (2026-04-12)
+- [Roadmap Ergon — 5 fases hacia demo MSF](project_roadmap_ergon.md) — Fase 1 4/6 + Fase 2 10/10 COMPLETE. Formalizado en docs/ORIGIN_ROADMAP_ERGON.md (sync commit b1e1762)
+- [Ecosistema de crates-regalo](project_gift_crates_ecosystem.md) — spatial-ui, sdf-text, audio, origin-aoi LISTOS. arkhe-anim en construccion. Formalizado en docs/ORIGIN_CRATE_WISHLIST.md
+- [Audit profundo NIGIRO + ARKHE](project_deep_audit_pending.md) — NIGIRO audit COMPLETADO (NIGIRO_AUDIT_V1.md ahora v1.1 por hilo doc-audit). ARKHE render audit pendiente post-demo
+- [Auditar codigo antes de hacer claims](feedback_audit_before_claims.md) — regla heredada: leer Cargo.toml workspace, verificar miembros, contar lineas, compilar ANTES de declarar
+- [Mision Claude-Tools — port origin-palace a Rust](project_origin_palace_mission.md) — briefing v1.0 sellado. Palace YA INTEGRADO y corriendo (ver system_palace_active.md)
+- [Hechos clave del upstream mempalace (verificados 2026-04-09)](project_palace_upstream_facts.md) — referencia historica del audit upstream
diff --git a/src/app/[locale]/applications/[slug]/ApplicationClient.tsx b/src/app/[locale]/applications/[slug]/ApplicationClient.tsx
index 1887d44..0fb96b0 100644
--- a/src/app/[locale]/applications/[slug]/ApplicationClient.tsx
+++ b/src/app/[locale]/applications/[slug]/ApplicationClient.tsx
@@ -8,6 +8,7 @@ import Image from "next/image";
 import Script from "next/script";
 import { ArrowLeft, CheckCircle2, Zap, LayoutDashboard, Cpu, PencilRuler, Factory, MapPin, ChevronDown, Play, FileText, Box, Loader2, Maximize, X, ChevronLeft, ChevronRight } from "lucide-react";
 import BreathingField from "@/components/visuals/BreathingField";
+import AutoPlayVideo from "@/components/AutoPlayVideo";
 
 // 🔥 EL TRUCO DEFINITIVO PARA TYPESCRIPT Y WEB COMPONENTS 🔥
 // Al asignar el string a una variable con 'as any', TypeScript deja de 
@@ -467,7 +468,7 @@ const renderMarkdown = (text: string, onImageClick: (url: string) => void) => {
           </div>
           <div className="aspect-video">
             {isLocalMp4 ? (
-              <video src={videoSrc} controls playsInline preload="metadata" className="w-full h-full object-contain" />
+              <AutoPlayVideo src={videoSrc} className="w-full h-full object-contain" />
             ) : (
               <iframe src={videoSrc} className="w-full h-full" allowFullScreen title="Embedded video" />
             )}
@@ -887,7 +888,7 @@ function ExpandedCaseStudy({ node }: { node: any }) {
                     return (
                       <div key={`v-${idx}`} className="relative w-full aspect-video rounded-2xl md:rounded-3xl overflow-hidden border border-black/10 dark:border-white/10 shadow-xl bg-black col-span-1 md:col-span-2">
                         {isLocalMp4 ? (
-                          <video src={videoSrc} controls playsInline preload="metadata" className="absolute inset-0 w-full h-full object-contain" />
+                          <AutoPlayVideo src={videoSrc} className="absolute inset-0 w-full h-full object-contain" />
                         ) : (
                           <iframe src={videoSrc} className="absolute inset-0 w-full h-full" allowFullScreen title={`Video ${idx + 1}`} />
                         )}
diff --git a/src/app/[locale]/heritage/page.tsx b/src/app/[locale]/heritage/page.tsx
index 0ff5378..6d35fd1 100644
--- a/src/app/[locale]/heritage/page.tsx
+++ b/src/app/[locale]/heritage/page.tsx
@@ -5,6 +5,7 @@ import Image from "next/image";
 import { prisma } from "@/lib/prisma";
 import { ArrowLeft } from "lucide-react";
 import BreathingField from "@/components/visuals/BreathingField";
+import AutoPlayVideo from "@/components/AutoPlayVideo";
 
 // 🔥 IMPORTACIONES DE IDIOMAS
 import { getLocalizedData } from "@/lib/i18nHelper";
@@ -145,7 +146,7 @@ const renderMarkdown = (text: string) => {
       return;
     }
 
-    const ulMatch = trimmed.match(/^[-*]\s*(.*)/);
+    const ulMatch = trimmed.match(/^[-*]\s+(.*)/);
     if (ulMatch) {
       isOrderedList = false;
       listItems.push(<li key={idx} className="leading-relaxed pl-2">{parseInline(ulMatch[1])}</li>);
@@ -242,17 +243,13 @@ export default async function HeritagePage({ params }: { params: Promise<{ local
                 </div>
               )}
 
-              {/* 🔥 BLOQUE DE VIDEO NATIVO (MP4 LOCAL) 🔥 */}
+              {/* 🔥 BLOQUE DE VIDEO NATIVO (MP4 LOCAL) — AUTOPLAY ON SCROLL 🔥 */}
               {sec.type === 'video' && sec.mediaUrl && (
                 <div className="relative w-full aspect-video rounded-3xl overflow-hidden border border-white/10 shadow-2xl bg-black">
-                  <video 
-                    src={`/heritage/videos/${sec.mediaUrl}`} 
-                    className="absolute inset-0 w-full h-full object-cover" 
-                    autoPlay 
-                    loop 
-                    muted 
-                    playsInline 
-                    controls 
+                  <AutoPlayVideo
+                    src={`/heritage/videos/${sec.mediaUrl}`}
+                    className="absolute inset-0 w-full h-full object-cover"
+                    loop
                   />
                 </div>
               )}
@@ -263,4 +260,4 @@ export default async function HeritagePage({ params }: { params: Promise<{ local
       </div>
     </main>
   );
-}
\ No newline at end of file
+}
diff --git a/src/app/[locale]/parts/_components/PartDetailsModal.tsx b/src/app/[locale]/parts/_components/PartDetailsModal.tsx
index 0161ba3..aa09140 100644
--- a/src/app/[locale]/parts/_components/PartDetailsModal.tsx
+++ b/src/app/[locale]/parts/_components/PartDetailsModal.tsx
@@ -5,6 +5,7 @@ import { X, Wrench, ShoppingBag, ChevronLeft, ChevronRight, Tag, Info, Play, Loc
 import { useState } from "react";
 import { useUIStore } from "@/lib/store/uiStore";
 import { useTranslations } from "next-intl";
+import AutoPlayVideo from "@/components/AutoPlayVideo";
 
 // 🔥 IMPORTAMOS TU SUPER PARSER
 import { renderMarkdown } from "@/lib/markdownParser";
@@ -73,9 +74,8 @@ export default function PartDetailsModal({ part, isOpen, onClose }: PartDetailsM
                 {media.length > 0 ? (
                   <>
                     {media[currentMediaIdx].endsWith('.mp4') || media[currentMediaIdx].endsWith('.mov') ? (
-                      <video 
+                      <AutoPlayVideo 
                         src={`/parts/${part.sku.toLowerCase()}/${media[currentMediaIdx]}`} 
-                        controls 
                         className="w-full h-full object-contain"
                       />
                     ) : (
@@ -199,4 +199,4 @@ export default function PartDetailsModal({ part, isOpen, onClose }: PartDetailsM
       )}
     </AnimatePresence>
   );
-}
\ No newline at end of file
+}
diff --git a/src/components/AutoPlayVideo.tsx b/src/components/AutoPlayVideo.tsx
new file mode 100644
index 0000000..93b2116
--- /dev/null
+++ b/src/components/AutoPlayVideo.tsx
@@ -0,0 +1,81 @@
+"use client";
+
+import { useEffect, useRef } from "react";
+
+interface AutoPlayVideoProps {
+  src: string;
+  className?: string;
+  poster?: string;
+  threshold?: number;
+  loop?: boolean;
+  controls?: boolean;
+}
+
+export default function AutoPlayVideo({
+  src,
+  className = "",
+  poster,
+  threshold = 0.5,
+  loop = false,
+  controls = true,
+}: AutoPlayVideoProps) {
+  const videoRef = useRef<HTMLVideoElement>(null);
+  const userInteractedRef = useRef(false);
+
+  useEffect(() => {
+    const video = videoRef.current;
+    if (!video) return;
+
+    // Track manual user interaction (clicks on play/pause controls).
+    // We only mark as user interaction if the event was trusted (real user click).
+    const handlePlay = (e: Event) => {
+      if ((e as Event).isTrusted) userInteractedRef.current = true;
+    };
+    const handlePause = (e: Event) => {
+      if ((e as Event).isTrusted) userInteractedRef.current = true;
+    };
+
+    video.addEventListener("play", handlePlay);
+    video.addEventListener("pause", handlePause);
+
+    const observer = new IntersectionObserver(
+      ([entry]) => {
+        if (!video) return;
+
+        // If the user has manually controlled the video, respect their decision.
+        if (userInteractedRef.current) return;
+
+        if (entry.isIntersecting) {
+          video.play().catch(() => {
+            // Autoplay may be blocked by the browser — that's fine.
+          });
+        } else {
+          video.pause();
+        }
+      },
+      { threshold }
+    );
+
+    observer.observe(video);
+
+    return () => {
+      observer.disconnect();
+      video.removeEventListener("play", handlePlay);
+      video.removeEventListener("pause", handlePause);
+    };
+  }, [threshold]);
+
+  return (
+    <video
+      ref={videoRef}
+      src={src}
+      poster={poster}
+      controls={controls}
+      muted
+      playsInline
+      loop={loop}
+      preload="metadata"
+      className={className}
+    />
+  );
+}
diff --git a/src/components/sections/ApplicationsDashboard.tsx b/src/components/sections/ApplicationsDashboard.tsx
index 54bedb4..2970be0 100644
--- a/src/components/sections/ApplicationsDashboard.tsx
+++ b/src/components/sections/ApplicationsDashboard.tsx
@@ -2,10 +2,10 @@
 
 import { useState } from "react";
 import { motion, AnimatePresence } from "framer-motion";
-import { ArrowRight, Zap, Scale, ShieldCheck, Cpu } from "lucide-react";
-// 🔥 Importamos Link de nuestro i18n
+import { ArrowRight, Zap, Scale, Cpu } from "lucide-react";
 import { Link } from "@/i18n/routing";
-import { useTranslations } from "next-intl"; // 🔥
+import { useTranslations } from "next-intl";
+import { getIconForSlug } from "@/lib/applicationIcons";
 
 export default function ApplicationsDashboard({ dbApps = [] }: { dbApps?: any[] }) {
   const activeApps = dbApps.filter(app => app.isActive);
@@ -54,9 +54,14 @@ export default function ApplicationsDashboard({ dbApps = [] }: { dbApps?: any[]
                   : "bg-transparent border-transparent text-[#86868B] dark:text-[#A1A1A6] hover:bg-black/5 dark:hover:bg-white/5"
               }`}
             >
-              <div className={`p-2 rounded-xl ${activeSlug === app.slug ? 'bg-[#0066CC]/10 text-[#0066CC] dark:bg-[#4DA6FF]/10 dark:text-[#4DA6FF]' : 'bg-transparent text-current'}`}>
-                {app.slug.includes("food") ? <ShieldCheck size={20} /> : <Zap size={20} />}
-              </div>
+              {(() => {
+                const Icon = getIconForSlug(app.slug);
+                return (
+                  <div className={`p-2 rounded-xl ${activeSlug === app.slug ? 'bg-[#0066CC]/10 text-[#0066CC] dark:bg-[#4DA6FF]/10 dark:text-[#4DA6FF]' : 'bg-transparent text-current'}`}>
+                    <Icon size={20} strokeWidth={1.5} />
+                  </div>
+                );
+              })()}
               <span className="text-base font-medium">{app.title}</span>
             </button>
           ))}
diff --git a/src/components/sections/ApplicationsDeep.tsx b/src/components/sections/ApplicationsDeep.tsx
index 8844c3b..805a2cc 100644
--- a/src/components/sections/ApplicationsDeep.tsx
+++ b/src/components/sections/ApplicationsDeep.tsx
@@ -1,22 +1,10 @@
 "use client";
 
-import { motion } from "framer-motion";
-import { ArrowRight, Waves, Microscope, Snowflake, ShieldCheck, ThermometerSun, FlaskConical, Box, Droplets, Zap, Leaf } from "lucide-react";
 import { Link } from "@/i18n/routing";
 import { useTranslations } from "next-intl";
-
-const getIconForSlug = (slug: string) => {
-  if (slug.includes("textile")) return Waves;
-  if (slug.includes("lab")) return Microscope;
-  if (slug.includes("temper") || slug.includes("defrost")) return Snowflake;
-  if (slug.includes("pasteuriz")) return ShieldCheck;
-  if (slug.includes("bak")) return ThermometerSun;
-  if (slug.includes("vulcaniz")) return FlaskConical;
-  if (slug.includes("foam")) return Box;
-  if (slug.includes("print")) return Droplets;
-  if (slug.includes("cannabis") || slug.includes("herb")) return Leaf;
-  return Zap;
-};
+import { ArrowRight } from "lucide-react";
+import { motion } from "framer-motion";
+import { getIconForSlug } from "@/lib/applicationIcons";
 
 export default function ApplicationsDeep({ dbApps = [] }: { dbApps?: any[] }) {
   const t = useTranslations("AppsDeep");
diff --git a/src/components/sections/GlobalOperations.tsx b/src/components/sections/GlobalOperations.tsx
index 16350a9..a620f8f 100644
--- a/src/components/sections/GlobalOperations.tsx
+++ b/src/components/sections/GlobalOperations.tsx
@@ -163,9 +163,37 @@ function MapNode({ marker, isSelected, hqPos, onSelect, isDark, globeMode, camDi
     gRef.current.scale.setScalar(scaleFactor * (isSelected ? 1.5 : 1.0));
   });
 
-  const dist = hqPos.distanceTo(pos);
-  const apex = hqPos.clone().lerp(pos, 0.5).normalize()
-    .multiplyScalar(RADIUS + dist * 0.28 + 0.14);
+  // Calculate the great-circle angle between the two points (0 = same point, π = antipodes)
+  const dotProduct = hqPos.clone().normalize().dot(pos.clone().normalize());
+  const angle = Math.acos(Math.max(-1, Math.min(1, dotProduct)));
+
+  // Compute apex direction using slerp (spherical interpolation), not lerp (linear).
+  // For near-antipodal points, lerp returns ~origin and normalize becomes unstable.
+  // Slerp gives the correct great-circle midpoint on the sphere surface.
+  let apexDir: THREE.Vector3;
+  if (angle < 0.001) {
+    // Same point — fallback
+    apexDir = hqPos.clone().normalize();
+  } else if (angle > Math.PI - 0.05) {
+    // Near antipodes — slerp is undefined, pick a perpendicular direction
+    // that goes "over the top" of the globe
+    const arbitrary = Math.abs(hqPos.y) < 0.9 ? new THREE.Vector3(0, 1, 0) : new THREE.Vector3(1, 0, 0);
+    apexDir = hqPos.clone().normalize().cross(arbitrary).normalize();
+  } else {
+    // Standard slerp midpoint
+    const sinAngle = Math.sin(angle);
+    const a = Math.sin(0.5 * angle) / sinAngle;
+    const b = Math.sin(0.5 * angle) / sinAngle;
+    apexDir = hqPos.clone().normalize().multiplyScalar(a)
+      .add(pos.clone().normalize().multiplyScalar(b))
+      .normalize();
+  }
+
+  // Arc height scales with the angle: short arcs stay close to surface,
+  // long arcs (near antipodes) lift high above the globe.
+  // angle ranges from 0 to π. Height factor scales from 0.15 to ~1.4 of RADIUS.
+  const heightFactor = 0.15 + (angle / Math.PI) * 1.25;
+  const apex = apexDir.multiplyScalar(RADIUS * (1 + heightFactor));
 
   // ── ARC LINE COLORS & OPACITY ──
   // Photo mode uses high-contrast colors (orange/yellow) instead of blue
diff --git a/src/lib/applicationIcons.ts b/src/lib/applicationIcons.ts
new file mode 100644
index 0000000..56b8be7
--- /dev/null
+++ b/src/lib/applicationIcons.ts
@@ -0,0 +1,14 @@
+import { Waves, Microscope, Snowflake, ShieldCheck, ThermometerSun, FlaskConical, Box, Droplets, Zap, Leaf } from "lucide-react";
+
+export const getIconForSlug = (slug: string) => {
+  if (slug.includes("textile")) return Waves;
+  if (slug.includes("lab")) return Microscope;
+  if (slug.includes("temper") || slug.includes("defrost")) return Snowflake;
+  if (slug.includes("pasteuriz") || slug.includes("cooking")) return ShieldCheck;
+  if (slug.includes("bak")) return ThermometerSun;
+  if (slug.includes("vulcaniz") || slug.includes("vucaniz")) return FlaskConical;
+  if (slug.includes("foam")) return Box;
+  if (slug.includes("print")) return Droplets;
+  if (slug.includes("cannabis") || slug.includes("herb")) return Leaf;
+  return Zap;
+};
\ No newline at end of file
diff --git a/src/lib/markdownParser.tsx b/src/lib/markdownParser.tsx
index 75545dc..c7919e6 100644
--- a/src/lib/markdownParser.tsx
+++ b/src/lib/markdownParser.tsx
@@ -1,5 +1,6 @@
 import React from "react";
 import { Play, Maximize2 } from "lucide-react";
+import AutoPlayVideo from "@/components/AutoPlayVideo";
 
 // Nota: No incluí el componente 3D directamente aquí para no complicar dependencias, 
 // pero soporta tablas, listas, citas, videos e imágenes con lightbox.
@@ -113,7 +114,7 @@ export const renderMarkdown = (text: string, onImageClick?: (url: string) => voi
       return;
     }
 
-    // ── VIDEO ──
+    // ── VIDEO (autoplay on viewport) ──
     const videoMatch = trimmed.match(/^\[VIDEO:(.*?)\]$/);
     if (videoMatch) {
       pushList(); pushTable();
@@ -123,7 +124,7 @@ export const renderMarkdown = (text: string, onImageClick?: (url: string) => voi
           <div className="absolute top-2 left-2 z-10 pointer-events-none bg-black/70 backdrop-blur-sm rounded-full px-2 py-0.5 flex items-center gap-1">
             <Play size={10} className="text-white" /><span className="text-[9px] font-bold text-white uppercase tracking-widest">Video</span>
           </div>
-          <video src={videoSrc} controls playsInline className="w-full h-full object-contain" />
+          <AutoPlayVideo src={videoSrc} className="w-full h-full object-contain" />
         </div>
       );
       return;
@@ -152,7 +153,7 @@ export const renderMarkdown = (text: string, onImageClick?: (url: string) => voi
     }
 
     // ── LISTS ──
-    const ulMatch = trimmed.match(/^[-*]\s*(.*)/);
+    const ulMatch = trimmed.match(/^[-*]\s+(.*)/);
     if (ulMatch) { isOrderedList = false; listItems.push(<li key={idx}>{parseInline(ulMatch[1])}</li>); return; }
 
     const olMatch = trimmed.match(/^\d+\.\s*(.*)/);
@@ -165,4 +166,4 @@ export const renderMarkdown = (text: string, onImageClick?: (url: string) => voi
 
   pushList(); pushTable(); 
   return <>{elements}</>;
-};
\ No newline at end of file
+};