diff --git a/dist/main/api_client.js b/dist/main/api_client.js
index 652a239..9256e34 100644
--- a/dist/main/api_client.js
+++ b/dist/main/api_client.js
@@ -28,7 +28,6 @@ async function fetchFullConfig(seed) {
             const deviceData = deviceResult.data || deviceResult;
             // Use 'app_base_url' as the FQDN for the site lookup
             const fqdn = deviceData.app_base_url || 'native-demo.oneskyit.com';
-            console.log(`Bootstrap Step 1 Success: Device identified. FQDN to use: ${fqdn}`);
             // --- STEP 2: Get Site Context ---
             const searchUrl = `${baseUrl}/v3/crud/site_domain/search`;
             const siteResponse = await fetch(searchUrl, {
@@ -54,7 +53,8 @@ async function fetchFullConfig(seed) {
             console.log(`Bootstrap Success using ${baseUrl}`);
             return {
                 ...siteDomain,
-                native_device: deviceData
+                native_device: deviceData,
+                aether_api_key: seed.aether_api_key // Include the key for frontend use
             };
         }
         catch (error) {
diff --git a/dist/main/api_client.js.map b/dist/main/api_client.js.map
index 250e999..5a720ad 100644
--- a/dist/main/api_client.js.map
+++ b/dist/main/api_client.js.map
@@ -1 +1 @@
-{"version":3,"file":"api_client.js","sourceRoot":"","sources":["../../src/main/api_client.ts"],"names":[],"mappings":";;AAEA,0CA4EC;AA5EM,KAAK,UAAU,eAAe,CAAC,IAAgB;IACpD,MAAM,OAAO,GAAG;QACd,IAAI,CAAC,mBAAmB;QACxB,IAAI,CAAC,oBAAoB;QACzB,IAAI,CAAC,mBAAmB;KACzB,CAAC,MAAM,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,KAAK,IAAI,IAAI,GAAG,KAAK,SAAS,CAAa,CAAC;IAE/D,IAAI,SAAS,GAAQ,IAAI,CAAC;IAE1B,KAAK,MAAM,OAAO,IAAI,OAAO,EAAE,CAAC;QAC9B,IAAI,CAAC;YACH,OAAO,CAAC,GAAG,CAAC,uCAAuC,OAAO,KAAK,CAAC,CAAC;YAEjE,oCAAoC;YACpC,MAAM,SAAS,GAAG,GAAG,OAAO,yBAAyB,IAAI,CAAC,eAAe,EAAE,CAAC;YAC5E,MAAM,cAAc,GAAG,MAAM,KAAK,CAAC,SAAS,EAAE;gBAC5C,MAAM,EAAE,KAAK;gBACb,OAAO,EAAE;oBACP,cAAc,EAAE,kBAAkB;oBAClC,kBAAkB,EAAE,IAAI,CAAC,cAAc;oBACvC,iBAAiB,EAAE,qBAAqB;iBACzC;aACF,CAAC,CAAC;YAEH,IAAI,CAAC,cAAc,CAAC,EAAE,EAAE,CAAC;gBACvB,MAAM,IAAI,KAAK,CAAC,yBAAyB,cAAc,CAAC,MAAM,GAAG,CAAC,CAAC;YACrE,CAAC;YAED,MAAM,YAAY,GAAG,MAAM,cAAc,CAAC,IAAI,EAAE,CAAC;YACjD,MAAM,UAAU,GAAG,YAAY,CAAC,IAAI,IAAI,YAAY,CAAC;YAErD,qDAAqD;YACrD,MAAM,IAAI,GAAG,UAAU,CAAC,YAAY,IAAI,0BAA0B,CAAC;YACnE,OAAO,CAAC,GAAG,CAAC,6DAA6D,IAAI,EAAE,CAAC,CAAC;YAEjF,mCAAmC;YACnC,MAAM,SAAS,GAAG,GAAG,OAAO,6BAA6B,CAAC;YAC1D,MAAM,YAAY,GAAG,MAAM,KAAK,CAAC,SAAS,EAAE;gBAC1C,MAAM,EAAE,MAAM;gBACd,OAAO,EAAE;oBACP,cAAc,EAAE,kBAAkB;oBAClC,kBAAkB,EAAE,IAAI,CAAC,cAAc;oBACvC,iBAAiB,EAAE,qBAAqB;oBACxC,cAAc,EAAE,UAAU,CAAC,iBAAiB,IAAI,UAAU,CAAC,UAAU,IAAI,EAAE;iBAC5E;gBACD,IAAI,EAAE,IAAI,CAAC,SAAS,CAAC;oBACnB,YAAY,EAAE;wBACZ,GAAG,EAAE,CAAC,EAAE,KAAK,EAAE,MAAM,EAAE,EAAE,EAAE,IAAI,EAAE,KAAK,EAAE,IAAI,EAAE,CAAC;qBAChD;oBACD,KAAK,EAAE,CAAC;iBACT,CAAC;aACH,CAAC,CAAC;YAEH,IAAI,CAAC,YAAY,CAAC,EAAE,EAAE,CAAC;gBACrB,MAAM,IAAI,KAAK,CAAC,+BAA+B,YAAY,CAAC,MAAM,GAAG,CAAC,CAAC;YACzE,CAAC;YAED,MAAM,UAAU,GAAG,MAAM,YAAY,CAAC,IAAI,EAAE,CAAC;YAC7C,MAAM,UAAU,GAAG,CAAC,UAAU,CAAC,IAAI,IAAI,UAAU,CAAC,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC;YAE/F,OAAO,CAAC,GAAG,CAAC,2BAA2B,OAAO,EAAE,CAAC,CAAC;YAElD,OAAO;gBACL,GAAG,UAAU;gBACb,aAAa,EAAE,UAAU;aAC1B,CAAC;QAEJ,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,OAAO,CAAC,IAAI,CAAC,wBAAwB,OAAO,IAAI,EAAE,KAAK,CAAC,CAAC;YACzD,SAAS,GAAG,KAAK,CAAC;YAClB,SAAS,CAAC,eAAe;QAC3B,CAAC;IACH,CAAC;IAED,OAAO,CAAC,KAAK,CAAC,0DAA0D,EAAE,SAAS,CAAC,CAAC;IACrF,OAAO,IAAI,CAAC;AACd,CAAC"}
\ No newline at end of file
+{"version":3,"file":"api_client.js","sourceRoot":"","sources":["../../src/main/api_client.ts"],"names":[],"mappings":";;AAEA,0CA4EC;AA5EM,KAAK,UAAU,eAAe,CAAC,IAAgB;IACpD,MAAM,OAAO,GAAG;QACd,IAAI,CAAC,mBAAmB;QACxB,IAAI,CAAC,oBAAoB;QACzB,IAAI,CAAC,mBAAmB;KACzB,CAAC,MAAM,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,KAAK,IAAI,IAAI,GAAG,KAAK,SAAS,CAAa,CAAC;IAE/D,IAAI,SAAS,GAAQ,IAAI,CAAC;IAE1B,KAAK,MAAM,OAAO,IAAI,OAAO,EAAE,CAAC;QAC9B,IAAI,CAAC;YACH,OAAO,CAAC,GAAG,CAAC,uCAAuC,OAAO,KAAK,CAAC,CAAC;YAEjE,oCAAoC;YACpC,MAAM,SAAS,GAAG,GAAG,OAAO,yBAAyB,IAAI,CAAC,eAAe,EAAE,CAAC;YAC5E,MAAM,cAAc,GAAG,MAAM,KAAK,CAAC,SAAS,EAAE;gBAC5C,MAAM,EAAE,KAAK;gBACb,OAAO,EAAE;oBACP,cAAc,EAAE,kBAAkB;oBAClC,kBAAkB,EAAE,IAAI,CAAC,cAAc;oBACvC,iBAAiB,EAAE,qBAAqB;iBACzC;aACF,CAAC,CAAC;YAEH,IAAI,CAAC,cAAc,CAAC,EAAE,EAAE,CAAC;gBACvB,MAAM,IAAI,KAAK,CAAC,yBAAyB,cAAc,CAAC,MAAM,GAAG,CAAC,CAAC;YACrE,CAAC;YAED,MAAM,YAAY,GAAG,MAAM,cAAc,CAAC,IAAI,EAAE,CAAC;YACjD,MAAM,UAAU,GAAG,YAAY,CAAC,IAAI,IAAI,YAAY,CAAC;YAErD,qDAAqD;YACrD,MAAM,IAAI,GAAG,UAAU,CAAC,YAAY,IAAI,0BAA0B,CAAC;YAEnE,mCAAmC;YACnC,MAAM,SAAS,GAAG,GAAG,OAAO,6BAA6B,CAAC;YAC1D,MAAM,YAAY,GAAG,MAAM,KAAK,CAAC,SAAS,EAAE;gBAC1C,MAAM,EAAE,MAAM;gBACd,OAAO,EAAE;oBACP,cAAc,EAAE,kBAAkB;oBAClC,kBAAkB,EAAE,IAAI,CAAC,cAAc;oBACvC,iBAAiB,EAAE,qBAAqB;oBACxC,cAAc,EAAE,UAAU,CAAC,iBAAiB,IAAI,UAAU,CAAC,UAAU,IAAI,EAAE;iBAC5E;gBACD,IAAI,EAAE,IAAI,CAAC,SAAS,CAAC;oBACnB,YAAY,EAAE;wBACZ,GAAG,EAAE,CAAC,EAAE,KAAK,EAAE,MAAM,EAAE,EAAE,EAAE,IAAI,EAAE,KAAK,EAAE,IAAI,EAAE,CAAC;qBAChD;oBACD,KAAK,EAAE,CAAC;iBACT,CAAC;aACH,CAAC,CAAC;YAEH,IAAI,CAAC,YAAY,CAAC,EAAE,EAAE,CAAC;gBACrB,MAAM,IAAI,KAAK,CAAC,+BAA+B,YAAY,CAAC,MAAM,GAAG,CAAC,CAAC;YACzE,CAAC;YAED,MAAM,UAAU,GAAG,MAAM,YAAY,CAAC,IAAI,EAAE,CAAC;YAC7C,MAAM,UAAU,GAAG,CAAC,UAAU,CAAC,IAAI,IAAI,UAAU,CAAC,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC;YAE/F,OAAO,CAAC,GAAG,CAAC,2BAA2B,OAAO,EAAE,CAAC,CAAC;YAElD,OAAO;gBACL,GAAG,UAAU;gBACb,aAAa,EAAE,UAAU;gBACzB,cAAc,EAAE,IAAI,CAAC,cAAc,CAAC,mCAAmC;aACxE,CAAC;QAEJ,CAAC;QAAC,OAAO,KAAK,EAAE,CAAC;YACf,OAAO,CAAC,IAAI,CAAC,wBAAwB,OAAO,IAAI,EAAE,KAAK,CAAC,CAAC;YACzD,SAAS,GAAG,KAAK,CAAC;YAClB,SAAS,CAAC,eAAe;QAC3B,CAAC;IACH,CAAC;IAED,OAAO,CAAC,KAAK,CAAC,0DAA0D,EAAE,SAAS,CAAC,CAAC;IACrF,OAAO,IAAI,CAAC;AACd,CAAC"}
\ No newline at end of file
diff --git a/dist/main/file_handlers.js b/dist/main/file_handlers.js
new file mode 100644
index 0000000..cbf016a
--- /dev/null
+++ b/dist/main/file_handlers.js
@@ -0,0 +1,106 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.registerFileHandlers = registerFileHandlers;
+const electron_1 = require("electron");
+const fs = __importStar(require("fs"));
+const path = __importStar(require("path"));
+const axios_1 = __importDefault(require("axios"));
+const file_utils_1 = require("./file_utils");
+let endpoints_in_progress = [];
+function registerFileHandlers() {
+    function get_legacy_hashed_path(root, hash) {
+        return path.join((0, file_utils_1.expandPath)(root), `${hash}.file`);
+    }
+    electron_1.ipcMain.handle('native:check-cache', async (event, { cache_root, hash }) => {
+        const full_path = get_legacy_hashed_path(cache_root, hash);
+        return fs.existsSync(full_path);
+    });
+    electron_1.ipcMain.handle('native:download-to-cache', async (event, { url, cache_root, hash, api_key, account_id }) => {
+        const full_path = get_legacy_hashed_path(cache_root, hash);
+        const tmp_path = `${full_path}.tmp`;
+        if (endpoints_in_progress.includes(url))
+            return { success: true, status: 'in_progress' };
+        if (fs.existsSync(full_path))
+            return { success: true, path: full_path, status: 'exists' };
+        console.log(`Native: Downloading ${hash} -> ${full_path}`);
+        try {
+            endpoints_in_progress.push(url);
+            const response = await (0, axios_1.default)({
+                method: 'get', url, responseType: 'stream',
+                headers: {
+                    'x-aether-api-key': api_key,
+                    'x-account-id': account_id || '',
+                    'x-no-account-id': 'Nothing to See Here'
+                }
+            });
+            const writer = fs.createWriteStream(tmp_path);
+            response.data.pipe(writer);
+            await new Promise((resolve, reject) => {
+                writer.on('finish', () => resolve());
+                writer.on('error', reject);
+            });
+            fs.renameSync(tmp_path, full_path);
+            return { success: true, path: full_path };
+        }
+        catch (error) {
+            if (fs.existsSync(tmp_path))
+                fs.unlinkSync(tmp_path);
+            return { success: false, error: error.message };
+        }
+        finally {
+            endpoints_in_progress = endpoints_in_progress.filter(e => e !== url);
+        }
+    });
+    electron_1.ipcMain.handle('native:launch-from-cache', async (event, { cache_root, hash, temp_root, filename }) => {
+        try {
+            const source = get_legacy_hashed_path(cache_root, hash);
+            const expanded_temp = (0, file_utils_1.expandPath)(temp_root);
+            const target = path.join(expanded_temp, filename);
+            if (!fs.existsSync(expanded_temp))
+                fs.mkdirSync(expanded_temp, { recursive: true });
+            fs.copyFileSync(source, target);
+            await electron_1.shell.openPath(target);
+            return { success: true };
+        }
+        catch (error) {
+            return { success: false, error: error.message };
+        }
+    });
+}
+//# sourceMappingURL=file_handlers.js.map
\ No newline at end of file
diff --git a/dist/main/file_handlers.js.map b/dist/main/file_handlers.js.map
new file mode 100644
index 0000000..e05f54d
--- /dev/null
+++ b/dist/main/file_handlers.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"file_handlers.js","sourceRoot":"","sources":["../../src/main/file_handlers.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAQA,oDA6DC;AArED,uCAA0C;AAC1C,uCAAyB;AACzB,2CAA6B;AAC7B,kDAA0B;AAC1B,6CAA0C;AAE1C,IAAI,qBAAqB,GAAa,EAAE,CAAC;AAEzC,SAAgB,oBAAoB;IAClC,SAAS,sBAAsB,CAAC,IAAY,EAAE,IAAY;QACxD,OAAO,IAAI,CAAC,IAAI,CAAC,IAAA,uBAAU,EAAC,IAAI,CAAC,EAAE,GAAG,IAAI,OAAO,CAAC,CAAC;IACrD,CAAC;IAED,kBAAO,CAAC,MAAM,CAAC,oBAAoB,EAAE,KAAK,EAAE,KAAK,EAAE,EAAE,UAAU,EAAE,IAAI,EAAE,EAAE,EAAE;QACzE,MAAM,SAAS,GAAG,sBAAsB,CAAC,UAAU,EAAE,IAAI,CAAC,CAAC;QAC3D,OAAO,EAAE,CAAC,UAAU,CAAC,SAAS,CAAC,CAAC;IAClC,CAAC,CAAC,CAAC;IAEH,kBAAO,CAAC,MAAM,CAAC,0BAA0B,EAAE,KAAK,EAAE,KAAK,EAAE,EAAE,GAAG,EAAE,UAAU,EAAE,IAAI,EAAE,OAAO,EAAE,UAAU,EAAE,EAAE,EAAE;QACzG,MAAM,SAAS,GAAG,sBAAsB,CAAC,UAAU,EAAE,IAAI,CAAC,CAAC;QAC3D,MAAM,QAAQ,GAAG,GAAG,SAAS,MAAM,CAAC;QAEpC,IAAI,qBAAqB,CAAC,QAAQ,CAAC,GAAG,CAAC;YAAE,OAAO,EAAE,OAAO,EAAE,IAAI,EAAE,MAAM,EAAE,aAAa,EAAE,CAAC;QACzF,IAAI,EAAE,CAAC,UAAU,CAAC,SAAS,CAAC;YAAE,OAAO,EAAE,OAAO,EAAE,IAAI,EAAE,IAAI,EAAE,SAAS,EAAE,MAAM,EAAE,QAAQ,EAAE,CAAC;QAE1F,OAAO,CAAC,GAAG,CAAC,uBAAuB,IAAI,OAAO,SAAS,EAAE,CAAC,CAAC;QAE3D,IAAI,CAAC;YACH,qBAAqB,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC;YAChC,MAAM,QAAQ,GAAG,MAAM,IAAA,eAAK,EAAC;gBAC3B,MAAM,EAAE,KAAK,EAAE,GAAG,EAAE,YAAY,EAAE,QAAQ;gBAC1C,OAAO,EAAE;oBACP,kBAAkB,EAAE,OAAO;oBAC3B,cAAc,EAAE,UAAU,IAAI,EAAE;oBAChC,iBAAiB,EAAE,qBAAqB;iBACzC;aACF,CAAC,CAAC;YAEH,MAAM,MAAM,GAAG,EAAE,CAAC,iBAAiB,CAAC,QAAQ,CAAC,CAAC;YAC9C,QAAQ,CAAC,IAAI,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;YAE3B,MAAM,IAAI,OAAO,CAAO,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;gBAC1C,MAAM,CAAC,EAAE,CAAC,QAAQ,EAAE,GAAG,EAAE,CAAC,OAAO,EAAE,CAAC,CAAC;gBACrC,MAAM,CAAC,EAAE,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;YAC7B,CAAC,CAAC,CAAC;YAEH,EAAE,CAAC,UAAU,CAAC,QAAQ,EAAE,SAAS,CAAC,CAAC;YACnC,OAAO,EAAE,OAAO,EAAE,IAAI,EAAE,IAAI,EAAE,SAAS,EAAE,CAAC;QAC5C,CAAC;QAAC,OAAO,KAAU,EAAE,CAAC;YACpB,IAAI,EAAE,CAAC,UAAU,CAAC,QAAQ,CAAC;gBAAE,EAAE,CAAC,UAAU,CAAC,QAAQ,CAAC,CAAC;YACrD,OAAO,EAAE,OAAO,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,CAAC,OAAO,EAAE,CAAC;QAClD,CAAC;gBAAS,CAAC;YACT,qBAAqB,GAAG,qBAAqB,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,KAAK,GAAG,CAAC,CAAC;QACvE,CAAC;IACH,CAAC,CAAC,CAAC;IAEH,kBAAO,CAAC,MAAM,CAAC,0BAA0B,EAAE,KAAK,EAAE,KAAK,EAAE,EAAE,UAAU,EAAE,IAAI,EAAE,SAAS,EAAE,QAAQ,EAAE,EAAE,EAAE;QACpG,IAAI,CAAC;YACH,MAAM,MAAM,GAAG,sBAAsB,CAAC,UAAU,EAAE,IAAI,CAAC,CAAC;YACxD,MAAM,aAAa,GAAG,IAAA,uBAAU,EAAC,SAAS,CAAC,CAAC;YAC5C,MAAM,MAAM,GAAG,IAAI,CAAC,IAAI,CAAC,aAAa,EAAE,QAAQ,CAAC,CAAC;YAClD,IAAI,CAAC,EAAE,CAAC,UAAU,CAAC,aAAa,CAAC;gBAAE,EAAE,CAAC,SAAS,CAAC,aAAa,EAAE,EAAE,SAAS,EAAE,IAAI,EAAE,CAAC,CAAC;YACpF,EAAE,CAAC,YAAY,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;YAChC,MAAM,gBAAK,CAAC,QAAQ,CAAC,MAAM,CAAC,CAAC;YAC7B,OAAO,EAAE,OAAO,EAAE,IAAI,EAAE,CAAC;QAC3B,CAAC;QAAC,OAAO,KAAU,EAAE,CAAC;YACpB,OAAO,EAAE,OAAO,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,CAAC,OAAO,EAAE,CAAC;QAClD,CAAC;IACH,CAAC,CAAC,CAAC;AACL,CAAC"}
\ No newline at end of file
diff --git a/dist/main/file_utils.js b/dist/main/file_utils.js
new file mode 100644
index 0000000..0fe4ad8
--- /dev/null
+++ b/dist/main/file_utils.js
@@ -0,0 +1,53 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.expandPath = expandPath;
+exports.getHashedPath = getHashedPath;
+const os = __importStar(require("os"));
+const path = __importStar(require("path"));
+function expandPath(filePath) {
+    if (!filePath)
+        return filePath;
+    if (filePath.startsWith('[home]')) {
+        return path.join(os.homedir(), filePath.replace('[home]', ''));
+    }
+    return filePath;
+}
+function getHashedPath(cacheRoot, hash) {
+    const expandedRoot = expandPath(cacheRoot);
+    const subdirectory = hash.substring(0, 2);
+    return path.join(expandedRoot, subdirectory, `${hash}.file`);
+}
+//# sourceMappingURL=file_utils.js.map
\ No newline at end of file
diff --git a/dist/main/file_utils.js.map b/dist/main/file_utils.js.map
new file mode 100644
index 0000000..509099f
--- /dev/null
+++ b/dist/main/file_utils.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"file_utils.js","sourceRoot":"","sources":["../../src/main/file_utils.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAGA,gCAMC;AAED,sCAIC;AAfD,uCAAyB;AACzB,2CAA6B;AAE7B,SAAgB,UAAU,CAAC,QAAgB;IACzC,IAAI,CAAC,QAAQ;QAAE,OAAO,QAAQ,CAAC;IAC/B,IAAI,QAAQ,CAAC,UAAU,CAAC,QAAQ,CAAC,EAAE,CAAC;QAClC,OAAO,IAAI,CAAC,IAAI,CAAC,EAAE,CAAC,OAAO,EAAE,EAAE,QAAQ,CAAC,OAAO,CAAC,QAAQ,EAAE,EAAE,CAAC,CAAC,CAAC;IACjE,CAAC;IACD,OAAO,QAAQ,CAAC;AAClB,CAAC;AAED,SAAgB,aAAa,CAAC,SAAiB,EAAE,IAAY;IAC3D,MAAM,YAAY,GAAG,UAAU,CAAC,SAAS,CAAC,CAAC;IAC3C,MAAM,YAAY,GAAG,IAAI,CAAC,SAAS,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;IAC1C,OAAO,IAAI,CAAC,IAAI,CAAC,YAAY,EAAE,YAAY,EAAE,GAAG,IAAI,OAAO,CAAC,CAAC;AAC/D,CAAC"}
\ No newline at end of file
diff --git a/dist/main/index.js b/dist/main/index.js
index f687c7a..3eefc35 100644
--- a/dist/main/index.js
+++ b/dist/main/index.js
@@ -37,6 +37,8 @@ const electron_1 = require("electron");
 const path = __importStar(require("path"));
 const config_loader_1 = require("./config_loader");
 const api_client_1 = require("./api_client");
+const shell_handlers_1 = require("./shell_handlers");
+const file_handlers_1 = require("./file_handlers");
 let mainWindow = null;
 let cachedSeed = null;
 let cachedFullConfig = null;
@@ -57,13 +59,12 @@ async function createWindow() {
         },
     });
     // Determine target URL based on hydrated config
-    let targetUrl = 'http://demo.localhost:5173'; // Default Dev Fallback
+    let targetUrl = 'http://demo.localhost:5173';
     if (cachedFullConfig && cachedFullConfig.native_device) {
         const device = cachedFullConfig.native_device;
         const eventId = device.event_id_random || device.event_id;
         const locationId = device.event_location_id_random || device.event_location_id || '';
         const host = device.app_base_url || 'demo.localhost:5173';
-        // In development, we likely want to stick to localhost even if app_base_url is set
         const useHost = (host.includes('localhost')) ? host : 'demo.localhost:5173';
         targetUrl = `http://${useHost}/events/${eventId}/launcher/${locationId}`;
     }
@@ -76,6 +77,9 @@ async function createWindow() {
         mainWindow = null;
     });
 }
+// Register OS-level handlers
+(0, shell_handlers_1.registerShellHandlers)();
+(0, file_handlers_1.registerFileHandlers)();
 electron_1.app.on('ready', createWindow);
 electron_1.app.on('window-all-closed', () => {
     if (process.platform !== 'darwin') {
diff --git a/dist/main/index.js.map b/dist/main/index.js.map
index 08c6f25..74a3ada 100644
--- a/dist/main/index.js.map
+++ b/dist/main/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/main/index.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,uCAAuD;AACvD,2CAA6B;AAC7B,mDAAiD;AACjD,6CAA+C;AAG/C,IAAI,UAAU,GAAyB,IAAI,CAAC;AAC5C,IAAI,UAAU,GAAsB,IAAI,CAAC;AACzC,IAAI,gBAAgB,GAAQ,IAAI,CAAC;AAEjC,KAAK,UAAU,YAAY;IACzB,6BAA6B;IAC7B,UAAU,GAAG,MAAM,IAAA,8BAAc,GAAE,CAAC;IACpC,IAAI,UAAU,EAAE,CAAC;QACf,gBAAgB,GAAG,MAAM,IAAA,4BAAe,EAAC,UAAU,CAAC,CAAC;IACvD,CAAC;IAED,UAAU,GAAG,IAAI,wBAAa,CAAC;QAC7B,KAAK,EAAE,IAAI;QACX,MAAM,EAAE,GAAG;QACX,KAAK,EAAE,+BAA+B;QACtC,cAAc,EAAE;YACd,OAAO,EAAE,IAAI,CAAC,IAAI,CAAC,SAAS,EAAE,qBAAqB,CAAC;YACpD,gBAAgB,EAAE,IAAI;YACtB,eAAe,EAAE,KAAK;SACvB;KACF,CAAC,CAAC;IAEH,gDAAgD;IAChD,IAAI,SAAS,GAAG,4BAA4B,CAAC,CAAC,uBAAuB;IAErE,IAAI,gBAAgB,IAAI,gBAAgB,CAAC,aAAa,EAAE,CAAC;QACvD,MAAM,MAAM,GAAG,gBAAgB,CAAC,aAAa,CAAC;QAC9C,MAAM,OAAO,GAAG,MAAM,CAAC,eAAe,IAAI,MAAM,CAAC,QAAQ,CAAC;QAC1D,MAAM,UAAU,GAAG,MAAM,CAAC,wBAAwB,IAAI,MAAM,CAAC,iBAAiB,IAAI,EAAE,CAAC;QACrF,MAAM,IAAI,GAAG,MAAM,CAAC,YAAY,IAAI,qBAAqB,CAAC;QAE1D,mFAAmF;QACnF,MAAM,OAAO,GAAG,CAAC,IAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,qBAAqB,CAAC;QAE5E,SAAS,GAAG,UAAU,OAAO,WAAW,OAAO,aAAa,UAAU,EAAE,CAAC;IAC3E,CAAC;IAED,OAAO,CAAC,GAAG,CAAC,2BAA2B,SAAS,EAAE,CAAC,CAAC;IAEpD,UAAU,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC,KAAK,CAAC,GAAG,EAAE;QACvC,OAAO,CAAC,IAAI,CAAC,kBAAkB,SAAS,+BAA+B,CAAC,CAAC;QACzE,UAAU,EAAE,OAAO,CAAC,gCAAgC,CAAC,CAAC;IACxD,CAAC,CAAC,CAAC;IAEH,UAAU,CAAC,EAAE,CAAC,QAAQ,EAAE,GAAG,EAAE;QAC3B,UAAU,GAAG,IAAI,CAAC;IACpB,CAAC,CAAC,CAAC;AACL,CAAC;AAED,cAAG,CAAC,EAAE,CAAC,OAAO,EAAE,YAAY,CAAC,CAAC;AAE9B,cAAG,CAAC,EAAE,CAAC,mBAAmB,EAAE,GAAG,EAAE;IAC/B,IAAI,OAAO,CAAC,QAAQ,KAAK,QAAQ,EAAE,CAAC;QAClC,cAAG,CAAC,IAAI,EAAE,CAAC;IACb,CAAC;AACH,CAAC,CAAC,CAAC;AAEH,cAAG,CAAC,EAAE,CAAC,UAAU,EAAE,GAAG,EAAE;IACtB,IAAI,UAAU,KAAK,IAAI,EAAE,CAAC;QACxB,YAAY,EAAE,CAAC;IACjB,CAAC;AACH,CAAC,CAAC,CAAC;AAEH,eAAe;AACf,kBAAO,CAAC,MAAM,CAAC,iBAAiB,EAAE,KAAK,IAAI,EAAE;IAC3C,OAAO,UAAU,IAAI,MAAM,IAAA,8BAAc,GAAE,CAAC;AAC9C,CAAC,CAAC,CAAC;AAEH,kBAAO,CAAC,MAAM,CAAC,mBAAmB,EAAE,KAAK,IAAI,EAAE;IAC7C,OAAO,gBAAgB,CAAC;AAC1B,CAAC,CAAC,CAAC;AAEH,kBAAO,CAAC,MAAM,CAAC,SAAS,EAAE,KAAK,IAAI,EAAE;IACnC,OAAO,IAAI,CAAC;AACd,CAAC,CAAC,CAAC"}
\ No newline at end of file
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/main/index.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,uCAAuD;AACvD,2CAA6B;AAC7B,mDAAiD;AACjD,6CAA+C;AAC/C,qDAAyD;AACzD,mDAAuD;AAGvD,IAAI,UAAU,GAAyB,IAAI,CAAC;AAC5C,IAAI,UAAU,GAAsB,IAAI,CAAC;AACzC,IAAI,gBAAgB,GAAQ,IAAI,CAAC;AAEjC,KAAK,UAAU,YAAY;IACzB,6BAA6B;IAC7B,UAAU,GAAG,MAAM,IAAA,8BAAc,GAAE,CAAC;IACpC,IAAI,UAAU,EAAE,CAAC;QACf,gBAAgB,GAAG,MAAM,IAAA,4BAAe,EAAC,UAAU,CAAC,CAAC;IACvD,CAAC;IAED,UAAU,GAAG,IAAI,wBAAa,CAAC;QAC7B,KAAK,EAAE,IAAI;QACX,MAAM,EAAE,GAAG;QACX,KAAK,EAAE,+BAA+B;QACtC,cAAc,EAAE;YACd,OAAO,EAAE,IAAI,CAAC,IAAI,CAAC,SAAS,EAAE,qBAAqB,CAAC;YACpD,gBAAgB,EAAE,IAAI;YACtB,eAAe,EAAE,KAAK;SACvB;KACF,CAAC,CAAC;IAEH,gDAAgD;IAChD,IAAI,SAAS,GAAG,4BAA4B,CAAC;IAE7C,IAAI,gBAAgB,IAAI,gBAAgB,CAAC,aAAa,EAAE,CAAC;QACvD,MAAM,MAAM,GAAG,gBAAgB,CAAC,aAAa,CAAC;QAC9C,MAAM,OAAO,GAAG,MAAM,CAAC,eAAe,IAAI,MAAM,CAAC,QAAQ,CAAC;QAC1D,MAAM,UAAU,GAAG,MAAM,CAAC,wBAAwB,IAAI,MAAM,CAAC,iBAAiB,IAAI,EAAE,CAAC;QACrF,MAAM,IAAI,GAAG,MAAM,CAAC,YAAY,IAAI,qBAAqB,CAAC;QAE1D,MAAM,OAAO,GAAG,CAAC,IAAI,CAAC,QAAQ,CAAC,WAAW,CAAC,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,qBAAqB,CAAC;QAE5E,SAAS,GAAG,UAAU,OAAO,WAAW,OAAO,aAAa,UAAU,EAAE,CAAC;IAC3E,CAAC;IAED,OAAO,CAAC,GAAG,CAAC,2BAA2B,SAAS,EAAE,CAAC,CAAC;IAEpD,UAAU,CAAC,OAAO,CAAC,SAAS,CAAC,CAAC,KAAK,CAAC,GAAG,EAAE;QACvC,OAAO,CAAC,IAAI,CAAC,kBAAkB,SAAS,+BAA+B,CAAC,CAAC;QACzE,UAAU,EAAE,OAAO,CAAC,gCAAgC,CAAC,CAAC;IACxD,CAAC,CAAC,CAAC;IAEH,UAAU,CAAC,EAAE,CAAC,QAAQ,EAAE,GAAG,EAAE;QAC3B,UAAU,GAAG,IAAI,CAAC;IACpB,CAAC,CAAC,CAAC;AACL,CAAC;AAED,6BAA6B;AAC7B,IAAA,sCAAqB,GAAE,CAAC;AACxB,IAAA,oCAAoB,GAAE,CAAC;AAEvB,cAAG,CAAC,EAAE,CAAC,OAAO,EAAE,YAAY,CAAC,CAAC;AAE9B,cAAG,CAAC,EAAE,CAAC,mBAAmB,EAAE,GAAG,EAAE;IAC/B,IAAI,OAAO,CAAC,QAAQ,KAAK,QAAQ,EAAE,CAAC;QAClC,cAAG,CAAC,IAAI,EAAE,CAAC;IACb,CAAC;AACH,CAAC,CAAC,CAAC;AAEH,cAAG,CAAC,EAAE,CAAC,UAAU,EAAE,GAAG,EAAE;IACtB,IAAI,UAAU,KAAK,IAAI,EAAE,CAAC;QACxB,YAAY,EAAE,CAAC;IACjB,CAAC;AACH,CAAC,CAAC,CAAC;AAEH,eAAe;AACf,kBAAO,CAAC,MAAM,CAAC,iBAAiB,EAAE,KAAK,IAAI,EAAE;IAC3C,OAAO,UAAU,IAAI,MAAM,IAAA,8BAAc,GAAE,CAAC;AAC9C,CAAC,CAAC,CAAC;AAEH,kBAAO,CAAC,MAAM,CAAC,mBAAmB,EAAE,KAAK,IAAI,EAAE;IAC7C,OAAO,gBAAgB,CAAC;AAC1B,CAAC,CAAC,CAAC;AAEH,kBAAO,CAAC,MAAM,CAAC,SAAS,EAAE,KAAK,IAAI,EAAE;IACnC,OAAO,IAAI,CAAC;AACd,CAAC,CAAC,CAAC"}
\ No newline at end of file
diff --git a/dist/main/shell_handlers.js b/dist/main/shell_handlers.js
new file mode 100644
index 0000000..5452e40
--- /dev/null
+++ b/dist/main/shell_handlers.js
@@ -0,0 +1,71 @@
+"use strict";
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || (function () {
+    var ownKeys = function(o) {
+        ownKeys = Object.getOwnPropertyNames || function (o) {
+            var ar = [];
+            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
+            return ar;
+        };
+        return ownKeys(o);
+    };
+    return function (mod) {
+        if (mod && mod.__esModule) return mod;
+        var result = {};
+        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
+        __setModuleDefault(result, mod);
+        return result;
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.registerShellHandlers = registerShellHandlers;
+const electron_1 = require("electron");
+const child_process_1 = require("child_process");
+const fs = __importStar(require("fs"));
+function registerShellHandlers() {
+    // Open a local directory in the OS File Manager
+    electron_1.ipcMain.handle('native:open-folder', async (event, folderPath) => {
+        console.log(`Native: Opening folder ${folderPath}`);
+        const error = await electron_1.shell.openPath(folderPath);
+        return { success: !error, error };
+    });
+    // Run a generic shell command (Whitelisted logic can be added here)
+    electron_1.ipcMain.handle('native:run-cmd', async (event, command) => {
+        console.log(`Native: Running command: ${command}`);
+        return new Promise((resolve) => {
+            (0, child_process_1.exec)(command, (error, stdout, stderr) => {
+                resolve({
+                    success: !error,
+                    stdout,
+                    stderr,
+                    error: error ? error.message : null
+                });
+            });
+        });
+    });
+    // Specific handler for launching a presentation file
+    electron_1.ipcMain.handle('native:launch-file', async (event, filePath) => {
+        console.log(`Native: Launching file: ${filePath}`);
+        if (!fs.existsSync(filePath)) {
+            return { success: false, error: 'File not found' };
+        }
+        const error = await electron_1.shell.openPath(filePath);
+        return { success: !error, error };
+    });
+}
+//# sourceMappingURL=shell_handlers.js.map
\ No newline at end of file
diff --git a/dist/main/shell_handlers.js.map b/dist/main/shell_handlers.js.map
new file mode 100644
index 0000000..b84cd04
--- /dev/null
+++ b/dist/main/shell_handlers.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"shell_handlers.js","sourceRoot":"","sources":["../../src/main/shell_handlers.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAKA,sDAgCC;AArCD,uCAA0C;AAC1C,iDAAqC;AAErC,uCAAyB;AAEzB,SAAgB,qBAAqB;IACnC,gDAAgD;IAChD,kBAAO,CAAC,MAAM,CAAC,oBAAoB,EAAE,KAAK,EAAE,KAAK,EAAE,UAAkB,EAAE,EAAE;QACvE,OAAO,CAAC,GAAG,CAAC,0BAA0B,UAAU,EAAE,CAAC,CAAC;QACpD,MAAM,KAAK,GAAG,MAAM,gBAAK,CAAC,QAAQ,CAAC,UAAU,CAAC,CAAC;QAC/C,OAAO,EAAE,OAAO,EAAE,CAAC,KAAK,EAAE,KAAK,EAAE,CAAC;IACpC,CAAC,CAAC,CAAC;IAEH,oEAAoE;IACpE,kBAAO,CAAC,MAAM,CAAC,gBAAgB,EAAE,KAAK,EAAE,KAAK,EAAE,OAAe,EAAE,EAAE;QAChE,OAAO,CAAC,GAAG,CAAC,4BAA4B,OAAO,EAAE,CAAC,CAAC;QACnD,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,EAAE;YAC7B,IAAA,oBAAI,EAAC,OAAO,EAAE,CAAC,KAAK,EAAE,MAAM,EAAE,MAAM,EAAE,EAAE;gBACtC,OAAO,CAAC;oBACN,OAAO,EAAE,CAAC,KAAK;oBACf,MAAM;oBACN,MAAM;oBACN,KAAK,EAAE,KAAK,CAAC,CAAC,CAAC,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC,IAAI;iBACpC,CAAC,CAAC;YACL,CAAC,CAAC,CAAC;QACL,CAAC,CAAC,CAAC;IACL,CAAC,CAAC,CAAC;IAEH,qDAAqD;IACrD,kBAAO,CAAC,MAAM,CAAC,oBAAoB,EAAE,KAAK,EAAE,KAAK,EAAE,QAAgB,EAAE,EAAE;QACrE,OAAO,CAAC,GAAG,CAAC,2BAA2B,QAAQ,EAAE,CAAC,CAAC;QACnD,IAAI,CAAC,EAAE,CAAC,UAAU,CAAC,QAAQ,CAAC,EAAE,CAAC;YAC7B,OAAO,EAAE,OAAO,EAAE,KAAK,EAAE,KAAK,EAAE,gBAAgB,EAAE,CAAC;QACrD,CAAC;QACD,MAAM,KAAK,GAAG,MAAM,gBAAK,CAAC,QAAQ,CAAC,QAAQ,CAAC,CAAC;QAC7C,OAAO,EAAE,OAAO,EAAE,CAAC,KAAK,EAAE,KAAK,EAAE,CAAC;IACpC,CAAC,CAAC,CAAC;AACL,CAAC"}
\ No newline at end of file
diff --git a/dist/preload/index.js b/dist/preload/index.js
index 38d7869..a25974c 100644
--- a/dist/preload/index.js
+++ b/dist/preload/index.js
@@ -2,9 +2,17 @@
 Object.defineProperty(exports, "__esModule", { value: true });
 const electron_1 = require("electron");
 electron_1.contextBridge.exposeInMainWorld('aetherNative', {
-    getSeedConfig: () => electron_1.ipcRenderer.invoke('get-seed-config'),
-    getDeviceConfig: () => electron_1.ipcRenderer.invoke('get-device-config'),
-    getJWT: () => electron_1.ipcRenderer.invoke('get-jwt'),
+    get_seed_config: () => electron_1.ipcRenderer.invoke('get-seed-config'),
+    get_device_config: () => electron_1.ipcRenderer.invoke('get-device-config'),
+    get_jwt: () => electron_1.ipcRenderer.invoke('get-jwt'),
     log: (message) => console.log('[Native Log]', message),
+    // Shell Handlers
+    open_folder: (path) => electron_1.ipcRenderer.invoke('native:open-folder', path),
+    run_command: (args) => electron_1.ipcRenderer.invoke('native:run-cmd', args),
+    launch_file: (path) => electron_1.ipcRenderer.invoke('native:launch-file', path),
+    // File/Cache Handlers
+    check_cache: (args) => electron_1.ipcRenderer.invoke('native:check-cache', args),
+    download_to_cache: (args) => electron_1.ipcRenderer.invoke('native:download-to-cache', args),
+    launch_from_cache: (args) => electron_1.ipcRenderer.invoke('native:launch-from-cache', args),
 });
 //# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/dist/preload/index.js.map b/dist/preload/index.js.map
index be7eba0..391f03a 100644
--- a/dist/preload/index.js.map
+++ b/dist/preload/index.js.map
@@ -1 +1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/preload/index.ts"],"names":[],"mappings":";;AAAA,uCAAsD;AAEtD,wBAAa,CAAC,iBAAiB,CAAC,cAAc,EAAE;IAC9C,aAAa,EAAE,GAAG,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,iBAAiB,CAAC;IAC1D,eAAe,EAAE,GAAG,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,mBAAmB,CAAC;IAC9D,MAAM,EAAE,GAAG,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,SAAS,CAAC;IAC3C,GAAG,EAAE,CAAC,OAAe,EAAE,EAAE,CAAC,OAAO,CAAC,GAAG,CAAC,cAAc,EAAE,OAAO,CAAC;CAC/D,CAAC,CAAC"}
\ No newline at end of file
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/preload/index.ts"],"names":[],"mappings":";;AAAA,uCAAsD;AAEtD,wBAAa,CAAC,iBAAiB,CAAC,cAAc,EAAE;IAC9C,eAAe,EAAE,GAAG,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,iBAAiB,CAAC;IAC5D,iBAAiB,EAAE,GAAG,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,mBAAmB,CAAC;IAChE,OAAO,EAAE,GAAG,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,SAAS,CAAC;IAC5C,GAAG,EAAE,CAAC,OAAe,EAAE,EAAE,CAAC,OAAO,CAAC,GAAG,CAAC,cAAc,EAAE,OAAO,CAAC;IAE9D,iBAAiB;IACjB,WAAW,EAAE,CAAC,IAAY,EAAE,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,oBAAoB,EAAE,IAAI,CAAC;IAC7E,WAAW,EAAE,CAAC,IAAS,EAAE,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,gBAAgB,EAAE,IAAI,CAAC;IACtE,WAAW,EAAE,CAAC,IAAY,EAAE,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,oBAAoB,EAAE,IAAI,CAAC;IAE7E,sBAAsB;IACtB,WAAW,EAAE,CAAC,IAAS,EAAE,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,oBAAoB,EAAE,IAAI,CAAC;IAC1E,iBAAiB,EAAE,CAAC,IAAS,EAAE,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,0BAA0B,EAAE,IAAI,CAAC;IACtF,iBAAiB,EAAE,CAAC,IAAS,EAAE,EAAE,CAAC,sBAAW,CAAC,MAAM,CAAC,0BAA0B,EAAE,IAAI,CAAC;CACvF,CAAC,CAAC"}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index e176ae7..2cffceb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,6 +7,9 @@
     "": {
       "name": "aether_app_native_electron",
       "version": "1.0.0",
+      "dependencies": {
+        "axios": "^1.13.2"
+      },
       "devDependencies": {
         "@types/node": "^22.10.7",
         "electron": "^34.0.0",
@@ -225,6 +228,23 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+      "license": "MIT"
+    },
+    "node_modules/axios": {
+      "version": "1.13.2",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-1.13.2.tgz",
+      "integrity": "sha512-VPk9ebNqPcy5lRGuSlKx752IlDatOjT9paPlm8A7yOuW2Fbvp4X3JznJtT4f0GzGLLiWE9W8onz51SqLYwzGaA==",
+      "license": "MIT",
+      "dependencies": {
+        "follow-redirects": "^1.15.6",
+        "form-data": "^4.0.4",
+        "proxy-from-env": "^1.1.0"
+      }
+    },
     "node_modules/boolean": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/boolean/-/boolean-3.2.0.tgz",
@@ -273,6 +293,19 @@
         "node": ">=8"
       }
     },
+    "node_modules/call-bind-apply-helpers": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
+      "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/clone-response": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/clone-response/-/clone-response-1.0.3.tgz",
@@ -286,6 +319,18 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "license": "MIT",
+      "dependencies": {
+        "delayed-stream": "~1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/create-require": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
@@ -388,6 +433,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/detect-node": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/detect-node/-/detect-node-2.1.0.tgz",
@@ -406,6 +460,20 @@
         "node": ">=0.3.1"
       }
     },
+    "node_modules/dunder-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+      "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "gopd": "^1.2.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/electron": {
       "version": "34.5.8",
       "resolved": "https://registry.npmjs.org/electron/-/electron-34.5.8.tgz",
@@ -459,9 +527,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
       "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
-      "dev": true,
       "license": "MIT",
-      "optional": true,
       "engines": {
         "node": ">= 0.4"
       }
@@ -470,9 +536,34 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
       "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
-      "dev": true,
       "license": "MIT",
-      "optional": true,
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-object-atoms": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+      "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/es-set-tostringtag": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
+      "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
+      "license": "MIT",
+      "dependencies": {
+        "es-errors": "^1.3.0",
+        "get-intrinsic": "^1.2.6",
+        "has-tostringtag": "^1.0.2",
+        "hasown": "^2.0.2"
+      },
       "engines": {
         "node": ">= 0.4"
       }
@@ -530,6 +621,42 @@
         "pend": "~1.2.0"
       }
     },
+    "node_modules/follow-redirects": {
+      "version": "1.15.11",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
+      "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
+      "funding": [
+        {
+          "type": "individual",
+          "url": "https://github.com/sponsors/RubenVerborgh"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=4.0"
+      },
+      "peerDependenciesMeta": {
+        "debug": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/form-data": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.5.tgz",
+      "integrity": "sha512-8RipRLol37bNs2bhoV67fiTEvdTrbMUYcFTiy3+wuuOnUog2QBHCZWXDRijWQfAkhBj2Uf5UnVaiWwA5vdd82w==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "es-set-tostringtag": "^2.1.0",
+        "hasown": "^2.0.2",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/fs-extra": {
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-8.1.0.tgz",
@@ -545,6 +672,52 @@
         "node": ">=6 <7 || >=8"
       }
     },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
+      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-intrinsic": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+      "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
+      "license": "MIT",
+      "dependencies": {
+        "call-bind-apply-helpers": "^1.0.2",
+        "es-define-property": "^1.0.1",
+        "es-errors": "^1.3.0",
+        "es-object-atoms": "^1.1.1",
+        "function-bind": "^1.1.2",
+        "get-proto": "^1.0.1",
+        "gopd": "^1.2.0",
+        "has-symbols": "^1.1.0",
+        "hasown": "^2.0.2",
+        "math-intrinsics": "^1.1.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/get-proto": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+      "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+      "license": "MIT",
+      "dependencies": {
+        "dunder-proto": "^1.0.1",
+        "es-object-atoms": "^1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/get-stream": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-5.2.0.tgz",
@@ -616,9 +789,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
       "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
-      "dev": true,
       "license": "MIT",
-      "optional": true,
       "engines": {
         "node": ">= 0.4"
       },
@@ -673,6 +844,45 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/has-symbols": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+      "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/has-tostringtag": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
+      "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
+      "license": "MIT",
+      "dependencies": {
+        "has-symbols": "^1.0.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
+      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
     "node_modules/http-cache-semantics": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.2.0.tgz",
@@ -760,6 +970,36 @@
         "node": ">=10"
       }
     },
+    "node_modules/math-intrinsics": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+      "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/mime-db": {
+      "version": "1.52.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+      "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/mime-types": {
+      "version": "2.1.35",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+      "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+      "license": "MIT",
+      "dependencies": {
+        "mime-db": "1.52.0"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
     "node_modules/mimic-response": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-1.0.1.tgz",
@@ -838,6 +1078,12 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/proxy-from-env": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==",
+      "license": "MIT"
+    },
     "node_modules/pump": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.3.tgz",
diff --git a/package.json b/package.json
index b3a534e..aea3dbd 100644
--- a/package.json
+++ b/package.json
@@ -14,5 +14,8 @@
     "electron": "^34.0.0",
     "ts-node": "^10.9.2",
     "typescript": "^5.7.3"
+  },
+  "dependencies": {
+    "axios": "^1.13.2"
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/api_client.ts b/src/main/api_client.ts
index 6e77b1f..9aa8418 100644
--- a/src/main/api_client.ts
+++ b/src/main/api_client.ts
@@ -33,7 +33,6 @@ export async function fetchFullConfig(seed: SeedConfig): Promise<any> {
       
       // Use 'app_base_url' as the FQDN for the site lookup
       const fqdn = deviceData.app_base_url || 'native-demo.oneskyit.com';
-      console.log(`Bootstrap Step 1 Success: Device identified. FQDN to use: ${fqdn}`);
 
       // --- STEP 2: Get Site Context ---
       const searchUrl = `${baseUrl}/v3/crud/site_domain/search`;
@@ -64,7 +63,8 @@ export async function fetchFullConfig(seed: SeedConfig): Promise<any> {
 
       return {
         ...siteDomain,
-        native_device: deviceData
+        native_device: deviceData,
+        aether_api_key: seed.aether_api_key // Include the key for frontend use
       };
 
     } catch (error) {
diff --git a/src/main/file_handlers.ts b/src/main/file_handlers.ts
new file mode 100644
index 0000000..0fead89
--- /dev/null
+++ b/src/main/file_handlers.ts
@@ -0,0 +1,70 @@
+import { ipcMain, shell } from 'electron';
+import * as fs from 'fs';
+import * as path from 'path';
+import axios from 'axios';
+import { expandPath } from './file_utils';
+
+let endpoints_in_progress: string[] = [];
+
+export function registerFileHandlers() {
+  function get_legacy_hashed_path(root: string, hash: string) {
+    return path.join(expandPath(root), `${hash}.file`);
+  }
+
+  ipcMain.handle('native:check-cache', async (event, { cache_root, hash }) => {
+    const full_path = get_legacy_hashed_path(cache_root, hash);
+    return fs.existsSync(full_path);
+  });
+
+  ipcMain.handle('native:download-to-cache', async (event, { url, cache_root, hash, api_key, account_id }) => {
+    const full_path = get_legacy_hashed_path(cache_root, hash);
+    const tmp_path = `${full_path}.tmp`;
+
+    if (endpoints_in_progress.includes(url)) return { success: true, status: 'in_progress' };
+    if (fs.existsSync(full_path)) return { success: true, path: full_path, status: 'exists' };
+
+    console.log(`Native: Downloading ${hash} -> ${full_path}`);
+
+    try {
+      endpoints_in_progress.push(url);
+      const response = await axios({
+        method: 'get', url, responseType: 'stream',
+        headers: {
+          'x-aether-api-key': api_key,
+          'x-account-id': account_id || '',
+          'x-no-account-id': 'Nothing to See Here'
+        }
+      });
+
+      const writer = fs.createWriteStream(tmp_path);
+      response.data.pipe(writer);
+
+      await new Promise<void>((resolve, reject) => {
+        writer.on('finish', () => resolve());
+        writer.on('error', reject);
+      });
+
+      fs.renameSync(tmp_path, full_path);
+      return { success: true, path: full_path };
+    } catch (error: any) {
+      if (fs.existsSync(tmp_path)) fs.unlinkSync(tmp_path);
+      return { success: false, error: error.message };
+    } finally {
+      endpoints_in_progress = endpoints_in_progress.filter(e => e !== url);
+    }
+  });
+
+  ipcMain.handle('native:launch-from-cache', async (event, { cache_root, hash, temp_root, filename }) => {
+    try {
+      const source = get_legacy_hashed_path(cache_root, hash);
+      const expanded_temp = expandPath(temp_root);
+      const target = path.join(expanded_temp, filename);
+      if (!fs.existsSync(expanded_temp)) fs.mkdirSync(expanded_temp, { recursive: true });
+      fs.copyFileSync(source, target);
+      await shell.openPath(target);
+      return { success: true };
+    } catch (error: any) {
+      return { success: false, error: error.message };
+    }
+  });
+}
diff --git a/src/main/file_utils.ts b/src/main/file_utils.ts
new file mode 100644
index 0000000..038f1a1
--- /dev/null
+++ b/src/main/file_utils.ts
@@ -0,0 +1,16 @@
+import * as os from 'os';
+import * as path from 'path';
+
+export function expandPath(filePath: string): string {
+  if (!filePath) return filePath;
+  if (filePath.startsWith('[home]')) {
+    return path.join(os.homedir(), filePath.replace('[home]', ''));
+  }
+  return filePath;
+}
+
+export function getHashedPath(cacheRoot: string, hash: string): string {
+  const expandedRoot = expandPath(cacheRoot);
+  const subdirectory = hash.substring(0, 2);
+  return path.join(expandedRoot, subdirectory, `${hash}.file`);
+}
diff --git a/src/main/index.ts b/src/main/index.ts
index cbf2314..9ac5040 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -2,6 +2,8 @@ import { app, BrowserWindow, ipcMain } from 'electron';
 import * as path from 'path';
 import { loadSeedConfig } from './config_loader';
 import { fetchFullConfig } from './api_client';
+import { registerShellHandlers } from './shell_handlers';
+import { registerFileHandlers } from './file_handlers';
 import { SeedConfig } from '../shared/types';
 
 let mainWindow: BrowserWindow | null = null;
@@ -27,7 +29,7 @@ async function createWindow() {
   });
 
   // Determine target URL based on hydrated config
-  let targetUrl = 'http://demo.localhost:5173'; // Default Dev Fallback
+  let targetUrl = 'http://demo.localhost:5173'; 
   
   if (cachedFullConfig && cachedFullConfig.native_device) {
     const device = cachedFullConfig.native_device;
@@ -35,7 +37,6 @@ async function createWindow() {
     const locationId = device.event_location_id_random || device.event_location_id || '';
     const host = device.app_base_url || 'demo.localhost:5173';
     
-    // In development, we likely want to stick to localhost even if app_base_url is set
     const useHost = (host.includes('localhost')) ? host : 'demo.localhost:5173';
     
     targetUrl = `http://${useHost}/events/${eventId}/launcher/${locationId}`;
@@ -53,6 +54,10 @@ async function createWindow() {
   });
 }
 
+// Register OS-level handlers
+registerShellHandlers();
+registerFileHandlers();
+
 app.on('ready', createWindow);
 
 app.on('window-all-closed', () => {
diff --git a/src/main/shell_handlers.ts b/src/main/shell_handlers.ts
new file mode 100644
index 0000000..51a22e0
--- /dev/null
+++ b/src/main/shell_handlers.ts
@@ -0,0 +1,38 @@
+import { ipcMain, shell } from 'electron';
+import { exec } from 'child_process';
+import * as path from 'path';
+import * as fs from 'fs';
+
+export function registerShellHandlers() {
+  // Open a local directory in the OS File Manager
+  ipcMain.handle('native:open-folder', async (event, folderPath: string) => {
+    console.log(`Native: Opening folder ${folderPath}`);
+    const error = await shell.openPath(folderPath);
+    return { success: !error, error };
+  });
+
+  // Run a generic shell command (Whitelisted logic can be added here)
+  ipcMain.handle('native:run-cmd', async (event, command: string) => {
+    console.log(`Native: Running command: ${command}`);
+    return new Promise((resolve) => {
+      exec(command, (error, stdout, stderr) => {
+        resolve({
+          success: !error,
+          stdout,
+          stderr,
+          error: error ? error.message : null
+        });
+      });
+    });
+  });
+
+  // Specific handler for launching a presentation file
+  ipcMain.handle('native:launch-file', async (event, filePath: string) => {
+    console.log(`Native: Launching file: ${filePath}`);
+    if (!fs.existsSync(filePath)) {
+      return { success: false, error: 'File not found' };
+    }
+    const error = await shell.openPath(filePath);
+    return { success: !error, error };
+  });
+}
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 31be28c..76d4c4f 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -1,8 +1,18 @@
 import { contextBridge, ipcRenderer } from 'electron';
 
 contextBridge.exposeInMainWorld('aetherNative', {
-  getSeedConfig: () => ipcRenderer.invoke('get-seed-config'),
-  getDeviceConfig: () => ipcRenderer.invoke('get-device-config'),
-  getJWT: () => ipcRenderer.invoke('get-jwt'),
+  get_seed_config: () => ipcRenderer.invoke('get-seed-config'),
+  get_device_config: () => ipcRenderer.invoke('get-device-config'),
+  get_jwt: () => ipcRenderer.invoke('get-jwt'),
   log: (message: string) => console.log('[Native Log]', message),
+  
+  // Shell Handlers
+  open_folder: (path: string) => ipcRenderer.invoke('native:open-folder', path),
+  run_command: (args: any) => ipcRenderer.invoke('native:run-cmd', args),
+  launch_file: (path: string) => ipcRenderer.invoke('native:launch-file', path),
+
+  // File/Cache Handlers
+  check_cache: (args: any) => ipcRenderer.invoke('native:check-cache', args),
+  download_to_cache: (args: any) => ipcRenderer.invoke('native:download-to-cache', args),
+  launch_from_cache: (args: any) => ipcRenderer.invoke('native:launch-from-cache', args),
 });
diff --git a/src/shared/types.ts b/src/shared/types.ts
index 4d6096a..8e3b170 100644
--- a/src/shared/types.ts
+++ b/src/shared/types.ts
@@ -11,6 +11,14 @@ export interface AetherNativeBridge {
   getDeviceConfig: () => Promise<any>;
   getJWT: () => Promise<string | null>;
   log: (message: string) => void;
+  // Shell Handlers
+  openFolder: (path: string) => Promise<{success: boolean, error?: string}>;
+  runCommand: (cmd: string) => Promise<{success: boolean, stdout: string, stderr: string, error?: string}>;
+  launchFile: (path: string) => Promise<{success: boolean, error?: string}>;
+  // File/Cache Handlers
+  checkCache: (args: {cacheRoot: string, hash: string}) => Promise<boolean>;
+  downloadToCache: (args: {url: string, cacheRoot: string, hash: string, apiKey: string}) => Promise<{success: boolean, path?: string, error?: string}>;
+  launchFromCache: (args: {cacheRoot: string, hash: string, tempRoot: string, filename: string}) => Promise<{success: boolean, error?: string}>;
 }
 
 declare global {