feat(files+gb): file browser launches .gb via GameBoy, preserve mDNS

lvgl-module/symbols.c:
- canvas: full LVGL9 docs API (get_buf, get_image, get_px, get_draw_buf,
  set_palette, copy_buf, init_layer, finish_layer, buf_size) – was only 5 symbols
- draw_buf: create/destroy/init/dup/copy/goto/clear/width_to_stride/align/palette/from_image/to_image
- cache: lv_draw_buf_invalidate_cache, flush_cache, lv_image_cache_drop – critical bugfix for
  GameBoy (and any direct framebuffer) where raw buf mutated but image cache stale -> FPS but no image.
- draw layer helpers, image scale/rotation/pivot/offset, transform scales for GB 2x/3x integer scaling

Reason blank screen: lv_canvas in LVGL9 is lv_image backed by draw_buf. Mutating raw pointer
without lv_image_cache_drop + invalidate_cache leaves stale texture. Timer was calling
lv_obj_invalidate only. Now exports needed symbols and app fixed to drop cache each frame.

mDNS (preserve from local WIP, sits on top of 60764979 'kidsOS-XXXX' mdns init):
- Tactility/network/Mdns.h/cpp: C++ browse + resolveHostname wrappers around esp-idf mdns 1.3.2
  (PTR query, txt records, address extraction, POSIX stub)
- TactilityC/tt_mdns.h/cpp: C copy-based API for ELF apps (TT_MDNS_MAX_RESULTS 32,
  capped addresses/txt, hostname->IP resolve)
- TactilityC/tt_init.cpp: export tt_mdns_is_available / browse / resolve_hostname symbols

Test plan:
- firmware build for es3c28p --dev
- release-sdk-current.py
- GameBoy app build against new SDK (0 missing symbols expected)
- push both branches to personal gitea

Devices/waveshare-esp32-s3-rlcd/waveshare,esp32-s3-rlcd.dts

@@ -8,6 +8,7 @@
 #include <tactility/bindings/esp32_spi.h>
 #include <tactility/bindings/esp32_i2s.h>
 #include <tactility/bindings/esp32_uart.h>
+#include <tactility/bindings/esp32_wifi_pinned.h>
 #include <tactility/bindings/display_placeholder.h>
 
 / {
@@ -69,6 +70,11 @@
 		pullups;
 	};
 
+	wifi0 {
+		compatible = "espressif,esp32-wifi-pinned";
+		status = "disabled";
+	};
+
 	uart0 {
 		compatible = "espressif,esp32-uart";
 		port = <UART_NUM_0>;

Firmware/idf_component.yml

@@ -84,5 +84,6 @@ dependencies:
     version: "1.1.4"
     rules:
       - if: "target in [esp32s3, esp32p4]"
+  espressif/mdns: "1.3.2"
   idf: '5.5.2'
 

Modules/lvgl-module/source/symbols.c

@@ -199,12 +199,52 @@ const struct ModuleSymbol lvgl_module_symbols[] = {
     DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_button_width),
     DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_selected_button),
     DEFINE_MODULE_SYMBOL(lv_buttonmatrix_clear_button_ctrl),
-    // lv_canvas
+    // lv_canvas - full API for emulator framebuffer use-cases (GameBoy 160x144)
     DEFINE_MODULE_SYMBOL(lv_canvas_create),
-    DEFINE_MODULE_SYMBOL(lv_canvas_fill_bg),
-    DEFINE_MODULE_SYMBOL(lv_canvas_set_draw_buf),
     DEFINE_MODULE_SYMBOL(lv_canvas_set_buffer),
+    DEFINE_MODULE_SYMBOL(lv_canvas_set_draw_buf),
     DEFINE_MODULE_SYMBOL(lv_canvas_set_px),
+    DEFINE_MODULE_SYMBOL(lv_canvas_set_palette),
+    DEFINE_MODULE_SYMBOL(lv_canvas_get_draw_buf),
+    DEFINE_MODULE_SYMBOL(lv_canvas_get_px),
+    DEFINE_MODULE_SYMBOL(lv_canvas_get_image),
+    DEFINE_MODULE_SYMBOL(lv_canvas_get_buf),
+    DEFINE_MODULE_SYMBOL(lv_canvas_copy_buf),
+    DEFINE_MODULE_SYMBOL(lv_canvas_fill_bg),
+    DEFINE_MODULE_SYMBOL(lv_canvas_init_layer),
+    DEFINE_MODULE_SYMBOL(lv_canvas_finish_layer),
+    DEFINE_MODULE_SYMBOL(lv_canvas_buf_size),
+    // lv_draw_buf - LVGL9 buffers (was lv_img_buf)
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_create),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_destroy),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_init),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_dup),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_copy),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_goto_xy),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_clear),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_width_to_stride),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_align),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_set_palette),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_from_image),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_to_image),
+    // LVGL cache invalidation - critical for raw framebuffer apps (GB emulator) where buffer mutated directly
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_invalidate_cache),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_flush_cache),
+    DEFINE_MODULE_SYMBOL(lv_image_cache_drop),
+    // lv_draw layer helpers
+    DEFINE_MODULE_SYMBOL(lv_draw_layer_create),
+    DEFINE_MODULE_SYMBOL(lv_draw_layer_alloc_buf),
+    // lv_image transform/scale - critical for GB 2x/3x scaling (image as canvas)
+    DEFINE_MODULE_SYMBOL(lv_image_set_scale),
+    DEFINE_MODULE_SYMBOL(lv_image_set_scale_x),
+    DEFINE_MODULE_SYMBOL(lv_image_set_scale_y),
+    DEFINE_MODULE_SYMBOL(lv_image_set_rotation),
+    DEFINE_MODULE_SYMBOL(lv_image_set_pivot),
+    DEFINE_MODULE_SYMBOL(lv_image_set_offset_x),
+    DEFINE_MODULE_SYMBOL(lv_image_set_offset_y),
+    // generic obj transform styles (fallback scaling path) - pivot_x/y already exported above, only add scale
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_transform_scale_x),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_transform_scale_y),
     // lv_label
     DEFINE_MODULE_SYMBOL(lv_label_create),
     DEFINE_MODULE_SYMBOL(lv_label_cut_text),
@@ -431,7 +471,7 @@ const struct ModuleSymbol lvgl_module_symbols[] = {
     DEFINE_MODULE_SYMBOL(lv_draw_task_get_draw_dsc),
     DEFINE_MODULE_SYMBOL(lv_draw_task_get_label_dsc),
     DEFINE_MODULE_SYMBOL(lv_draw_task_get_fill_dsc),
-    DEFINE_MODULE_SYMBOL(lv_draw_buf_create),
+    // lv_draw_buf_create moved to canvas block (duplicate removed)
     // lv_image
     DEFINE_MODULE_SYMBOL(lv_image_create),
     DEFINE_MODULE_SYMBOL(lv_image_set_src),

Platforms/platform-esp32/CMakeLists.txt

@@ -6,7 +6,7 @@ idf_component_register(
     SRCS ${SOURCES}
     INCLUDE_DIRS "include/"
     PRIV_INCLUDE_DIRS "private/"
-    REQUIRES TactilityKernel driver esp_adc esp_driver_i2c esp_lcd vfs fatfs esp_wifi esp_netif esp_event
+    REQUIRES TactilityKernel driver esp_adc esp_driver_i2c esp_lcd vfs fatfs esp_wifi esp_netif esp_event mdns
 )
 
 if (DEFINED ENV{ESP_IDF_VERSION})

Platforms/platform-esp32/source/drivers/esp32_wifi.cpp

@@ -5,9 +5,11 @@
 #if defined(CONFIG_SOC_WIFI_SUPPORTED) || defined(CONFIG_SLAVE_SOC_WIFI_SUPPORTED)
 
 #include <esp_event.h>
+#include <esp_mac.h>
 #include <esp_netif.h>
 #include <esp_wifi.h>
 #include <esp_wifi_default.h>
+#include <mdns.h>
 
 #include <tactility/concurrent/mutex.h>
 #include <tactility/device.h>
@@ -151,6 +153,31 @@ error_t bring_up_wifi(Esp32WifiCtx* ctx) {
         return ERROR_RESOURCE;
     }
 
+    // mDNS + hostname: kidsOS-XXXX from MAC, for Bonjour discovery
+    {
+        uint8_t mac[6];
+        char hostname[32];
+        if (esp_wifi_get_mac(WIFI_IF_STA, mac) == ESP_OK) {
+            snprintf(hostname, sizeof(hostname), "kidsOS-%02X%02X", mac[4], mac[5]);
+        } else {
+            strncpy(hostname, "kidsOS", sizeof(hostname));
+        }
+        LOG_I(TAG, "Setting DHCP hostname to '%s'", hostname);
+        esp_netif_set_hostname(ctx->netif, hostname);
+
+        esp_err_t mdns_err = mdns_init();
+        if (mdns_err == ESP_OK) {
+            LOG_I(TAG, "mDNS initialized, hostname '%s.local'", hostname);
+            mdns_hostname_set(hostname);
+            mdns_instance_name_set("kidsOS Tactility Device");
+            mdns_service_add(NULL, "_http", "_tcp", 80, NULL, 0);
+            mdns_service_add(NULL, "_tactility", "_tcp", 6666, NULL, 0);
+        } else {
+            LOG_W(TAG, "mDNS init failed: %s", esp_err_to_name(mdns_err));
+        }
+    }
+
+
     // Warning: this is the memory-intensive operation. It uses over 100kB of
     // RAM with default settings.
     wifi_init_config_t init_config = WIFI_INIT_CONFIG_DEFAULT();

Tactility/CMakeLists.txt

@@ -32,6 +32,7 @@ if (DEFINED ENV{ESP_IDF_VERSION})
         vfs
         fatfs
         lwip
+        mdns
         spi_flash
     )
 

Tactility/Include/Tactility/bluetooth/BluetoothPairedDevice.h

@@ -13,6 +13,8 @@ struct PairedDevice {
     bool autoConnect = false;
     /** Profile used to pair (BtProfileId value). Defaults to BT_PROFILE_SPP=2. */
     int profileId = 2;
+    /** BLE address type (0=PUBLIC, 1=RANDOM, etc). Defaults to PUBLIC for backward compat. */
+    uint8_t addrType = 0;
 };
 
 std::string addrToHex(const std::array<uint8_t, 6>& addr);

Tactility/Include/Tactility/network/Mdns.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <cstdint>
+#include <map>
+#include <string>
+#include <vector>
+
+namespace tt::network::mdns {
+
+/**
+ * A discovered mDNS service instance.
+ * Example: instanceName="kidsOS-AB12", serviceType="_http", proto="_tcp",
+ * hostname="kidsOS-AB12", port=80, addresses=["192.168.1.42"]
+ */
+struct Service {
+    std::string instanceName; ///< Instance name (e.g. "ESP32-WebServer")
+    std::string serviceType;  ///< Service type (e.g. "_http", "_tactility")
+    std::string proto;        ///< Protocol (e.g. "_tcp", "_udp")
+    std::string hostname;     ///< Hostname without .local (e.g. "kidsOS-AB12")
+    uint16_t port = 0;        ///< Service port
+    std::vector<std::string> addresses; ///< All resolved IP addresses (v4 and v6)
+    std::string primaryAddress;         ///< First IPv4 address, or first address if no v4
+    uint32_t ttl = 0;                   ///< Time to live
+    std::map<std::string, std::string> txtRecords; ///< TXT key-value pairs
+};
+
+/**
+ * @return true if mDNS subsystem is initialized and ready for queries.
+ * On simulator/POSIX it returns false until a platform implementation is present.
+ */
+bool isAvailable();
+
+/**
+ * Browse for mDNS services.
+ *
+ * This wraps `mdns_query_ptr(serviceType, proto, timeout, maxResults, ...)`.
+ * It blocks for up to timeoutMs while collecting results.
+ *
+ * @param serviceType e.g. "_http", "_tactility", "_arduino"
+ * @param proto e.g. "_tcp", "_udp" (include leading underscore)
+ * @param timeoutMs how long to wait for answers (e.g. 3000)
+ * @param maxResults maximum number of results to collect (e.g. 20)
+ * @param outResults filled with discovered services
+ * @return true on success (may still be 0 results), false if mDNS not running or error
+ */
+bool browse(const std::string& serviceType, const std::string& proto, uint32_t timeoutMs, size_t maxResults, std::vector<Service>& outResults);
+
+/**
+ * Browse with sensible defaults: 3s timeout, 20 max results.
+ */
+inline bool browse(const std::string& serviceType, const std::string& proto, std::vector<Service>& outResults) {
+    return browse(serviceType, proto, 3000, 20, outResults);
+}
+
+/**
+ * Resolve a hostname (e.g. "kidsOS-AB12" or "kidsOS-AB12.local") to an IPv4 address string.
+ *
+ * @param hostname hostname to resolve, ".local" suffix is optional and stripped
+ * @param timeoutMs time to wait
+ * @param outIp resolved IP (e.g. "192.168.1.42")
+ * @return true if resolved
+ */
+bool resolveHostname(const std::string& hostname, uint32_t timeoutMs, std::string& outIp);
+
+/**
+ * Resolve with 2s default timeout.
+ */
+inline bool resolveHostname(const std::string& hostname, std::string& outIp) {
+    return resolveHostname(hostname, 2000, outIp);
+}
+
+} // namespace tt::network::mdns

Tactility/Private/Tactility/app/AppManifestParsingInternal.h

@@ -14,6 +14,9 @@ bool isValidAppVersionName(const std::string& version);
 bool isValidAppVersionCode(const std::string& version);
 bool isValidName(const std::string& name);
 
+/** Parses a comma-separated flags string (e.g. "HideStatusBar,Hidden") into appFlags bitmask. */
+uint16_t parseAppFlagsString(const std::string& raw);
+
 /** Parses a V1 (sectioned INI, e.g. "[app]versionName=...") manifest map. */
 bool parseManifestV1(const std::map<std::string, std::string>& map, AppManifest& manifest);
 

Tactility/Private/Tactility/app/files/SupportedFiles.h

@@ -1,3 +1,9 @@
 #pragma once
 #include <string>
-namespace tt::app::files { bool isSupportedAppFile(const std::string& filename); bool isSupportedImageFile(const std::string& filename); bool isSupportedTextFile(const std::string& filename); bool isSupportedAudioFile(const std::string& filename); } // namespace
+namespace tt::app::files {
+bool isSupportedAppFile(const std::string& filename);
+bool isSupportedImageFile(const std::string& filename);
+bool isSupportedTextFile(const std::string& filename);
+bool isSupportedAudioFile(const std::string& filename);
+bool isSupportedGameBoyFile(const std::string& filename);
+} // namespace

Tactility/Source/app/AppManifestParsing.cpp

@@ -56,6 +56,34 @@ bool isValidName(const std::string& name) {
     });
 }
 
+uint16_t parseAppFlagsString(const std::string& raw) {
+    uint16_t flags = AppManifest::Flags::None;
+    if (raw.empty()) {
+        return flags;
+    }
+
+    auto parts = string::split(raw, ",");
+    for (auto& part : parts) {
+        std::string trimmed = string::trim(part, " \t\r\n");
+        if (trimmed.empty()) {
+            continue;
+        }
+        std::string lower = string::lowercase(trimmed);
+
+        if (lower == "hidestatusbar" || lower == "hide_statusbar" || lower == "hide-statusbar" || lower == "hide_status_bar") {
+            flags |= AppManifest::Flags::HideStatusBar;
+        } else if (lower == "hidden") {
+            flags |= AppManifest::Flags::Hidden;
+        } else if (lower == "none" || lower == "0" || lower == "") {
+            // keep as none, no additional flag
+        } else {
+            LOG_W(TAG, "Unknown app flag \"%s\" - ignoring", trimmed.c_str());
+        }
+    }
+
+    return flags;
+}
+
 /** The V1 format's first line is always the literal "[manifest]" section header; V2 files are flat from the first line onward. */
 static bool detectIsV1Format(const std::string& filePath) {
     std::string first_line;

Tactility/Source/app/AppManifestParsingV1.cpp

@@ -71,6 +71,12 @@ bool parseManifestV1(const std::map<std::string, std::string>& map, AppManifest&
         return false;
     }
 
+    // Optional: [app]flags - e.g. "HideStatusBar" or "HideStatusBar,Hidden"
+    auto flags_it = map.find("[app]flags");
+    if (flags_it != map.end()) {
+        manifest.appFlags = parseAppFlagsString(flags_it->second);
+    }
+
     return true;
 }
 

Tactility/Source/app/AppManifestParsingV2.cpp

@@ -71,6 +71,12 @@ bool parseManifestV2(const std::map<std::string, std::string>& map, AppManifest&
         return false;
     }
 
+    // Optional: app.flags - e.g. "HideStatusBar" or "HideStatusBar,Hidden"
+    auto flags_it = map.find("app.flags");
+    if (flags_it != map.end()) {
+        manifest.appFlags = parseAppFlagsString(flags_it->second);
+    }
+
     return true;
 }
 

Tactility/Source/app/files/SupportedFiles.cpp

@@ -1,3 +1,24 @@
 #include <Tactility/StringUtils.h>
 #include <Tactility/TactilityCore.h>
-namespace tt::app::files { constexpr auto* TAG = "Files"; bool isSupportedAppFile(const std::string& filename) { return filename.ends_with(".app"); } bool isSupportedImageFile(const std::string& filename) { return string::lowercase(filename).ends_with(".png"); } bool isSupportedTextFile(const std::string& filename) { std::string l=string::lowercase(filename); return l.ends_with(".txt")||l.ends_with(".ini")||l.ends_with(".json")||l.ends_with(".yaml")||l.ends_with(".yml")||l.ends_with(".lua")||l.ends_with(".js")||l.ends_with(".properties"); } bool isSupportedAudioFile(const std::string& filename) { std::string l=string::lowercase(filename); return l.ends_with(".mp3")||l.ends_with(".wav")||l.ends_with(".ogg")||l.ends_with(".flac"); } } // namespace
+namespace tt::app::files {
+constexpr auto* TAG = "Files";
+bool isSupportedAppFile(const std::string& filename) {
+    return filename.ends_with(".app");
+}
+bool isSupportedImageFile(const std::string& filename) {
+    return string::lowercase(filename).ends_with(".png");
+}
+bool isSupportedTextFile(const std::string& filename) {
+    std::string l = string::lowercase(filename);
+    return l.ends_with(".txt") || l.ends_with(".ini") || l.ends_with(".json") || l.ends_with(".yaml") || l.ends_with(".yml") ||
+        l.ends_with(".lua") || l.ends_with(".js") || l.ends_with(".properties");
+}
+bool isSupportedAudioFile(const std::string& filename) {
+    std::string l = string::lowercase(filename);
+    return l.ends_with(".mp3") || l.ends_with(".wav") || l.ends_with(".ogg") || l.ends_with(".flac");
+}
+bool isSupportedGameBoyFile(const std::string& filename) {
+    std::string l = string::lowercase(filename);
+    return l.ends_with(".gb") || l.ends_with(".gbc") || l.ends_with(".sgb");
+}
+} // namespace

Tactility/Source/app/files/View.cpp

@@ -239,6 +239,15 @@ void View::viewFile(const std::string& path, const std::string& filename) {
         if (loader) {
             loader->start("one.tactility.mp3player", bundle);
         }
+#endif
+    } else if (isSupportedGameBoyFile(filename)) {
+#ifdef ESP_PLATFORM
+        auto bundle = std::make_shared<Bundle>();
+        bundle->putString("file", processed_filepath);
+        auto loader = service::loader::findLoaderService();
+        if (loader) {
+            loader->start("one.tactility.gameboy", bundle);
+        }
 #endif
     } else {
         LOG_W(TAG, "Opening files of this type is not supported");

Tactility/Source/bluetooth/Bluetooth.cpp

@@ -115,6 +115,15 @@ static void bt_event_bridge(Device*, void* /*context*/, BtEvent event) {
                 case BT_RADIO_STATE_ON:
                     getMainDispatcher().dispatch([] {
                         auto peers = settings::loadAll();
+                        LOG_I(TAG, "RADIO ON: loaded %d paired peers", (int)peers.size());
+                        for (const auto& p : peers) {
+                            LOG_I(TAG, " - peer %s name='%s' profile=%d auto=%d type=%d",
+                                settings::addrToHex(p.addr).c_str(),
+                                p.name.c_str(),
+                                p.profileId,
+                                (int)p.autoConnect,
+                                (int)p.addrType);
+                        }
                         bool has_hid_host_auto   = false;
                         bool has_hid_device_auto = false;
                         for (const auto& p : peers) {
@@ -122,17 +131,26 @@ static void bt_event_bridge(Device*, void* /*context*/, BtEvent event) {
                             if (p.profileId == BT_PROFILE_HID_HOST)   has_hid_host_auto   = true;
                             if (p.profileId == BT_PROFILE_HID_DEVICE) has_hid_device_auto = true;
                         }
+                        LOG_I(TAG, "RADIO ON: has_hid_host_auto=%d has_hid_device_auto=%d spp=%d midi=%d",
+                            (int)has_hid_host_auto, (int)has_hid_device_auto,
+                            (int)settings::shouldSppAutoStart(), (int)settings::shouldMidiAutoStart());
+                        // Start all auto-connect/auto-start roles that are configured.
+                        // Scanning (central) and advertising (peripheral) can run concurrently
+                        // on ESP32 NimBLE, so we no longer use exclusive else-if.
                         if (has_hid_host_auto) {
                             LOG_I(TAG, "HID host auto-connect peer found — starting scan");
                             if (Device* dev = device_find_first_active_by_type(&BLUETOOTH_TYPE)) {
                                 bluetooth_scan_start(dev);
                             }
-                        } else if (has_hid_device_auto) {
+                        }
+                        if (has_hid_device_auto) {
                             LOG_I(TAG, "HID device auto-start (bonded peer found)");
                             if (Device* dev = bluetooth_hid_device_get_device()) {
                                 bluetooth_hid_device_start(dev, BT_HID_DEVICE_MODE_KEYBOARD);
                             }
-                        } else {
+                        }
+                        // SPP and MIDI are peripheral servers; start them if their global
+                        // auto-start flags are set, regardless of HID roles.
                         if (settings::shouldSppAutoStart()) {
                             LOG_I(TAG, "Auto-starting SPP server");
                             if (Device* dev = bluetooth_serial_get_device()) {
@@ -145,7 +163,6 @@ static void bt_event_bridge(Device*, void* /*context*/, BtEvent event) {
                                 bluetooth_midi_start(dev);
                             }
                         }
-                        }
                     });
                     break;
                 default:
@@ -176,6 +193,9 @@ static void bt_event_bridge(Device*, void* /*context*/, BtEvent event) {
                 int profile_copy = event.pair_result.profile;
                 memcpy(addr_buf, event.pair_result.addr, 6);
                 getMainDispatcher().dispatch([addr_buf, profile_copy]() mutable {
+                    // Ensure Bluetooth auto-enables on boot after successful pairing,
+                    // so previously connected devices reconnect after a restart.
+                    settings::setEnableOnBoot(true);
                     std::array<uint8_t, 6> peer_addr;
                     memcpy(peer_addr.data(), addr_buf, 6);
                     const auto hex = settings::addrToHex(peer_addr);
@@ -185,6 +205,13 @@ static void bt_event_bridge(Device*, void* /*context*/, BtEvent event) {
                         dev.name        = "";
                         dev.autoConnect = true;
                         dev.profileId   = profile_copy;
+                        // Try to preserve addrType from scan cache if available
+                        uint8_t cached_type = 0;
+                        if (getCachedScanAddrType(peer_addr.data(), &cached_type)) {
+                            dev.addrType = cached_type;
+                        } else {
+                            dev.addrType = 0;
+                        }
                         if (settings::save(dev)) {
                             LOG_I(TAG, "Saved paired peer %s (profile=%d)", hex.c_str(), profile_copy);
                         }
@@ -290,6 +317,11 @@ bool start(Device* dev) {
         return false;
     }
 
+    // Persist enable-on-boot so that paired devices auto-reconnect after a restart.
+    // The settings file is written from the main task to avoid blocking the NimBLE host
+    // task, but the dispatcher may run immediately, so we also set it here.
+    settings::setEnableOnBoot(true);
+
     LOG_I(TAG, "BT enabled");
     return true;
 }
@@ -414,6 +446,9 @@ void unpair(const std::array<uint8_t, 6>& addr) {
 
 void connect(const std::array<uint8_t, 6>& addr, int profileId) {
     LOG_I(TAG, "connect(profile=%d)", profileId);
+    // Ensure BT restarts in the same mode after reboot, so previously connected
+    // devices can be re-found (scan) or reconnected to (advertising).
+    settings::setEnableOnBoot(true);
     if (profileId == BT_PROFILE_HID_HOST) {
         hidHostConnect(addr);
     } else if (profileId == BT_PROFILE_HID_DEVICE) {

Tactility/Source/bluetooth/BluetoothHidHost.cpp

@@ -7,6 +7,7 @@
 #include <Tactility/bluetooth/Bluetooth.h>
 #include <Tactility/bluetooth/BluetoothPairedDevice.h>
 #include <Tactility/bluetooth/BluetoothPrivate.h>
+#include <Tactility/bluetooth/BluetoothSettings.h>
 
 #include <Tactility/Assets.h>
 #include <Tactility/Tactility.h>
@@ -480,6 +481,8 @@ static void hidHostSubscribeNext(HidHostCtx& ctx) {
 
         auto peer_addr = ctx.peerAddr;
         getMainDispatcher().dispatch([peer_addr] {
+            // Ensure BT stays on after reboot so this keyboard can be re-found.
+            settings::setEnableOnBoot(true);
             // Find name from cached scan results
             std::string name;
             {
@@ -488,17 +491,34 @@ static void hidHostSubscribeNext(HidHostCtx& ctx) {
                     if (r.addr == peer_addr) { name = r.name; break; }
                 }
             }
+            uint8_t cached_type = 0;
+            bool has_cached_type = getCachedScanAddrType(peer_addr.data(), &cached_type);
             settings::PairedDevice device;
             device.addr        = peer_addr;
             device.profileId   = BT_PROFILE_HID_HOST;
             device.autoConnect = true;
+            device.addrType    = has_cached_type ? cached_type : 0;
             const auto addr_hex = settings::addrToHex(peer_addr);
+            LOG_I(TAG, "HID host ready: saving device %s name='%s' cached_type=%d has_cached=%d",
+                addr_hex.c_str(), name.c_str(), (int)cached_type, (int)has_cached_type);
             settings::PairedDevice existing;
             if (settings::load(addr_hex, existing)) {
+                LOG_I(TAG, "Existing file found for %s, preserving autoConnect=%d", addr_hex.c_str(), (int)existing.autoConnect);
                 device.autoConnect = existing.autoConnect;
+                // Preserve existing addrType if we don't have a cached one
+                if (!has_cached_type) {
+                    device.addrType = existing.addrType;
+                }
+                // Preserve stored name if scan didn't provide one
+                if (name.empty() && !existing.name.empty()) {
+                    name = existing.name;
+                }
+            } else {
+                LOG_I(TAG, "No existing file for %s, creating new", addr_hex.c_str());
             }
             device.name = name;
-            settings::save(device);
+            bool saved = settings::save(device);
+            LOG_I(TAG, "Save result for %s: %d", addr_hex.c_str(), (int)saved);
             if (Device* dev = device_find_first_active_by_type(&BLUETOOTH_TYPE)) {
                 BtEvent e = {};
                 e.type = BT_EVENT_PROFILE_STATE_CHANGED;
@@ -794,13 +814,22 @@ void hidHostConnect(const std::array<uint8_t, 6>& addr) {
     // Notify driver that a HID host central connection is starting.
     if (Device* dev = device_find_first_active_by_type(&BLUETOOTH_TYPE)) bluetooth_set_hid_host_active(dev, true);
 
-    // Look up the addr_type from the cached scan results.
+    // Look up the addr_type from the cached scan results, or from persisted storage.
+    // For RPA devices we may have cached RPA type, but we want to connect using identity.
+    // Prefer cached scan type for direct scan-match, fallback to stored file's addrType.
     ble_addr_t ble_addr = {};
     ble_addr.type = BLE_ADDR_PUBLIC;
     std::memcpy(ble_addr.val, addr.data(), 6);
     uint8_t addr_type = 0;
     if (getCachedScanAddrType(addr.data(), &addr_type)) {
         ble_addr.type = addr_type;
+    } else {
+        // Try persisted addrType if available
+        const auto hex = settings::addrToHex(addr);
+        settings::PairedDevice stored;
+        if (settings::load(hex, stored)) {
+            ble_addr.type = stored.addrType;
+        }
     }
 
     uint8_t own_addr_type;
@@ -847,34 +876,58 @@ bool hidHostGetConnectedPeer(std::array<uint8_t, 6>& addr_out) {
 void autoConnectHidHost() {
     if (hidHostIsConnected()) return;
 
-    // Connect to the first saved HID host peer that appeared in the last scan.
+    // Gather all stored peers that want auto-connect as HID host (central).
-    // cacheScanAddr() is populated during scanning so addr_type is available for ble_gap_connect.
+    auto all_peers = settings::loadAll();
+    std::vector<settings::PairedDevice> auto_peers;
+    for (const auto& p : all_peers) {
+        if (p.autoConnect && p.profileId == BT_PROFILE_HID_HOST) {
+            auto_peers.push_back(p);
+        }
+    }
+    if (auto_peers.empty()) return;
+
     auto scan = getScanResults();
+
+    // 1. Direct address match (public address devices, most keyboards).
+    //    cacheScanAddr() is populated during scanning so addr_type is available for ble_gap_connect.
     for (const auto& r : scan) {
         settings::PairedDevice stored;
         if (settings::load(settings::addrToHex(r.addr), stored) &&
             stored.autoConnect &&
             stored.profileId == BT_PROFILE_HID_HOST) {
-            LOG_I(TAG, "Auto-connecting HID host to %s", settings::addrToHex(r.addr).c_str());
+            LOG_I(TAG, "Auto-connecting HID host to %s (direct match)", settings::addrToHex(r.addr).c_str());
             hidHostConnect(r.addr);
             return;
         }
     }
 
-    // Device not in the last scan. If we have an autoConnect HID host peer, restart
+    // 2. RPA / name fallback: some peripherals use Resolvable Private Addresses.
-    // scanning so we keep checking until the device powers back on.
+    //    Their advertised address (RPA) does not equal the stored identity address,
-    auto peers = settings::loadAll();
+    //    so hex-lookup fails. If we see a scan result whose name matches a stored
-    for (const auto& peer : peers) {
+    //    auto-connect peer, attempt a direct connection to the stored identity address.
-        if (peer.autoConnect && peer.profileId == BT_PROFILE_HID_HOST) {
+    //    The controller's resolving list (populated from NVS IRK) will resolve the RPA.
-            if (Device* dev = device_find_first_active_by_type(&BLUETOOTH_TYPE)) {
+    for (const auto& r : scan) {
-                if (!bluetooth_is_scanning(dev)) {
+        if (r.name.empty()) continue;
-                    LOG_I(TAG, "Auto-connect HID host: device not in scan, retrying scan");
+        for (const auto& stored : auto_peers) {
-                    bluetooth_scan_start(dev);
+            if (!stored.name.empty() && stored.name == r.name) {
+                LOG_I(TAG, "Auto-connecting HID host to %s via name match '%s' (RPA handling: scan=%s stored=%s)",
+                    settings::addrToHex(stored.addr).c_str(),
+                    r.name.c_str(),
+                    settings::addrToHex(r.addr).c_str(),
+                    settings::addrToHex(stored.addr).c_str());
+                hidHostConnect(stored.addr);
+                return;
             }
         }
-            break;
-        }
     }
+
+    // 3. Direct connect fallback: if device not in scan (or uses RPA without name in adv),
+    //    try to connect directly to the first stored auto peer. ble_gap_connect() will
+    //    internally scan and use the resolving list to match RPA to identity.
+    //    This also covers the case where the keyboard is powered off and later on.
+    LOG_I(TAG, "Auto-connect HID host: %d auto peer(s) not in scan, trying direct connect to %s",
+        (int)auto_peers.size(), settings::addrToHex(auto_peers[0].addr).c_str());
+    hidHostConnect(auto_peers[0].addr);
 }
 
 } // namespace tt::bluetooth

Tactility/Source/bluetooth/BluetoothPairedDevice.cpp

@@ -23,6 +23,7 @@ constexpr auto* KEY_NAME        = "name";
 constexpr auto* KEY_ADDR         = "addr";
 constexpr auto* KEY_AUTO_CONNECT = "autoConnect";
 constexpr auto* KEY_PROFILE_ID   = "profileId";
+constexpr auto* KEY_ADDR_TYPE    = "addrType";
 
 static std::string getSettingsFilePath() {
     return getUserDataPath() + "/service/bluetooth";
@@ -78,8 +79,23 @@ bool load(const std::string& addr_hex, PairedDevice& device) {
     device.autoConnect = !map.contains(KEY_AUTO_CONNECT) || (map[KEY_AUTO_CONNECT] == "true");
 
     if (map.contains(KEY_PROFILE_ID)) {
-        // TODO: Handle incorrect parsing input
+        char* endPtr = nullptr;
-        device.profileId = std::stoi(map[KEY_PROFILE_ID]);
+        long val = std::strtol(map[KEY_PROFILE_ID].c_str(), &endPtr, 10);
+        if (endPtr != map[KEY_PROFILE_ID].c_str()) {
+            device.profileId = static_cast<int>(val);
+        }
+    }
+
+    if (map.contains(KEY_ADDR_TYPE)) {
+        char* endPtr = nullptr;
+        long val = std::strtol(map[KEY_ADDR_TYPE].c_str(), &endPtr, 10);
+        if (endPtr != map[KEY_ADDR_TYPE].c_str() && val >= 0 && val <= 255) {
+            device.addrType = static_cast<uint8_t>(val);
+        } else {
+            device.addrType = 0;
+        }
+    } else {
+        device.addrType = 0; // backward compat: assume PUBLIC
     }
     return true;
 }
@@ -91,12 +107,17 @@ bool save(const PairedDevice& device) {
     map[KEY_ADDR]         = addr_hex;
     map[KEY_AUTO_CONNECT] = device.autoConnect ? "true" : "false";
     map[KEY_PROFILE_ID]   = std::to_string(device.profileId);
+    map[KEY_ADDR_TYPE]    = std::to_string(device.addrType);
     auto file_path = getFilePath(addr_hex);
+    LOG_I(TAG, "Saving device file %s profile=%d auto=%d type=%d",
+        file_path.c_str(), device.profileId, (int)device.autoConnect, (int)device.addrType);
     if (!file::findOrCreateParentDirectory(file_path, 0755)) {
         LOG_E(TAG, "Failed to create parent dir for %s", file_path.c_str());
         return false;
     }
-    return file::savePropertiesFile(file_path, map);
+    bool result = file::savePropertiesFile(file_path, map);
+    LOG_I(TAG, "SavePropertiesFile result for %s: %d", file_path.c_str(), (int)result);
+    return result;
 }
 
 bool remove(const std::string& addr_hex) {
@@ -108,6 +129,7 @@ bool remove(const std::string& addr_hex) {
 std::vector<PairedDevice> loadAll() {
     std::vector<dirent> entries;
     if (!file::isDirectory(getSettingsFilePath())) {
+        LOG_I(TAG, "loadAll: directory %s does not exist", getSettingsFilePath().c_str());
         return {};
     }
     file::scandir(getSettingsFilePath(), entries, [](const dirent* entry) -> int {
@@ -116,6 +138,7 @@ std::vector<PairedDevice> loadAll() {
         return name.ends_with(".device.properties") ? 0 : -1;
     }, nullptr);
 
+    LOG_I(TAG, "loadAll: found %d entries in %s", (int)entries.size(), getSettingsFilePath().c_str());
     std::vector<PairedDevice> result;
     result.reserve(entries.size());
     for (const auto& entry : entries) {
@@ -126,6 +149,8 @@ std::vector<PairedDevice> loadAll() {
         PairedDevice device;
         if (load(addr_hex, device)) {
             result.push_back(std::move(device));
+        } else {
+            LOG_W(TAG, "loadAll: failed to load %s", filename.c_str());
         }
     }
     return result;

Tactility/Source/network/Mdns.cpp

@@ -0,0 +1,172 @@
+#include <Tactility/network/Mdns.h>
+
+#ifdef ESP_PLATFORM
+
+#include <tactility/log.h>
+#include <esp_wifi.h>
+#include <esp_netif.h>
+#include <lwip/ip4_addr.h>
+#if CONFIG_LWIP_IPV6
+#include <lwip/ip6_addr.h>
+#endif
+#include <mdns.h>
+#include <cstring>
+#include <algorithm>
+
+namespace tt::network::mdns {
+
+constexpr auto* TAG = "Mdns";
+
+static std::string ipAddrToString(const esp_ip_addr_t& ip) {
+    char buf[64];
+    if (ip.type == ESP_IPADDR_TYPE_V4) {
+        esp_ip4addr_ntoa(&ip.u_addr.ip4, buf, sizeof(buf));
+    } else {
+#if CONFIG_LWIP_IPV6
+        ip6addr_ntoa_r(reinterpret_cast<const ip6_addr_t*>(&ip.u_addr.ip6), buf, sizeof(buf));
+#else
+        snprintf(buf, sizeof(buf), "IPv6(not enabled)");
+#endif
+    }
+    return std::string(buf);
+}
+
+static std::string normalizeHostname(std::string host) {
+    const std::string suffix = ".local";
+    if (host.size() > suffix.size() && host.compare(host.size() - suffix.size(), suffix.size(), suffix) == 0) {
+        host.erase(host.size() - suffix.size());
+    }
+    if (!host.empty() && host.back() == '.') {
+        host.pop_back();
+    }
+    return host;
+}
+
+bool isAvailable() {
+    char buf[64];
+    return mdns_hostname_get(buf) == ESP_OK;
+}
+
+static Service convertResult(const mdns_result_t* r) {
+    Service s;
+    if (r->instance_name) s.instanceName = r->instance_name;
+    if (r->service_type) s.serviceType = r->service_type;
+    if (r->proto) s.proto = r->proto;
+    if (r->hostname) s.hostname = r->hostname;
+    s.port = r->port;
+    s.ttl = r->ttl;
+
+    for (size_t i = 0; i < r->txt_count; i++) {
+        if (r->txt[i].key) {
+            std::string key = r->txt[i].key;
+            std::string value;
+            if (r->txt[i].value && r->txt_value_len) {
+                value = std::string(r->txt[i].value, r->txt_value_len[i]);
+            } else if (r->txt[i].value) {
+                value = r->txt[i].value;
+            }
+            s.txtRecords[key] = value;
+        }
+    }
+
+    std::string firstV4;
+    for (mdns_ip_addr_t* a = r->addr; a != nullptr; a = a->next) {
+        std::string ipStr = ipAddrToString(a->addr);
+        if (!ipStr.empty()) {
+            s.addresses.push_back(ipStr);
+            if (firstV4.empty() && a->addr.type == ESP_IPADDR_TYPE_V4) {
+                firstV4 = ipStr;
+            }
+        }
+    }
+    if (!firstV4.empty()) {
+        s.primaryAddress = firstV4;
+    } else if (!s.addresses.empty()) {
+        s.primaryAddress = s.addresses.front();
+    }
+
+    return s;
+}
+
+bool browse(const std::string& serviceType, const std::string& proto, uint32_t timeoutMs, size_t maxResults, std::vector<Service>& outResults) {
+    if (serviceType.empty() || proto.empty()) {
+        return false;
+    }
+
+    outResults.clear();
+
+    mdns_result_t* results = nullptr;
+    esp_err_t err = mdns_query_ptr(serviceType.c_str(), proto.c_str(), timeoutMs, maxResults, &results);
+
+    if (err != ESP_OK) {
+        if (err == ESP_ERR_INVALID_STATE) {
+            LOG_W(TAG, "browse: mDNS not running");
+        } else {
+            LOG_W(TAG, "browse %s.%s failed: %s", serviceType.c_str(), proto.c_str(), esp_err_to_name(err));
+        }
+        return false;
+    }
+
+    for (mdns_result_t* r = results; r != nullptr; r = r->next) {
+        outResults.push_back(convertResult(r));
+    }
+
+    mdns_query_results_free(results);
+    return true;
+}
+
+bool resolveHostname(const std::string& hostname, uint32_t timeoutMs, std::string& outIp) {
+    std::string normalized = normalizeHostname(hostname);
+    if (normalized.empty()) return false;
+
+    outIp.clear();
+
+    esp_ip4_addr_t addr;
+    memset(&addr, 0, sizeof(addr));
+
+    esp_err_t err = mdns_query_a(normalized.c_str(), timeoutMs, &addr);
+    if (err == ESP_OK) {
+        char buf[32];
+        esp_ip4addr_ntoa(&addr, buf, sizeof(buf));
+        outIp = buf;
+        return true;
+    }
+
+#if CONFIG_LWIP_IPV6
+    esp_ip6_addr_t addr6;
+    memset(&addr6, 0, sizeof(addr6));
+    err = mdns_query_aaaa(normalized.c_str(), timeoutMs, &addr6);
+    if (err == ESP_OK) {
+        char buf[64];
+        ip6addr_ntoa_r(reinterpret_cast<const ip6_addr_t*>(&addr6), buf, sizeof(buf));
+        outIp = buf;
+        return true;
+    }
+#endif
+
+    return false;
+}
+
+} // namespace tt::network::mdns
+
+#else // !ESP_PLATFORM — POSIX simulator stub
+
+namespace tt::network::mdns {
+
+bool isAvailable() { return false; }
+
+bool browse(const std::string& serviceType, const std::string& proto, uint32_t timeoutMs, size_t maxResults, std::vector<Service>& outResults) {
+    (void)serviceType; (void)proto; (void)timeoutMs; (void)maxResults;
+    outResults.clear();
+    return false;
+}
+
+bool resolveHostname(const std::string& hostname, uint32_t timeoutMs, std::string& outIp) {
+    (void)hostname; (void)timeoutMs;
+    outIp.clear();
+    return false;
+}
+
+} // namespace tt::network::mdns
+
+#endif

Tactility/Source/service/webserver/WebServerService.cpp

@@ -46,6 +46,8 @@
 #include <esp_system.h>
 #include <esp_vfs_fat.h>
 #include <esp_wifi.h>
+#include <mdns.h>
+#include <esp_mac.h>
 #include <freertos/FreeRTOS.h>
 #include <freertos/task.h>
 #include <iomanip>
@@ -392,6 +394,27 @@ bool WebServerService::startApMode() {
     }
 
     LOG_I(TAG, "WiFi AP started - SSID: '%s', Channel: %u, IP: 192.168.4.1", settings.apSsid.c_str(), (unsigned)settings.apChannel);
+
+    // mDNS for AP mode too - kidsOS-XXXX.local
+    {
+        uint8_t mac[6];
+        char hostname[32];
+        if (esp_wifi_get_mac(WIFI_IF_AP, mac) == ESP_OK) {
+            snprintf(hostname, sizeof(hostname), "kidsOS-%02X%02X", mac[4], mac[5]);
+        } else {
+            strncpy(hostname, "kidsOS", sizeof(hostname));
+        }
+        esp_netif_set_hostname(apNetif, hostname);
+        esp_err_t mdns_err = mdns_init();
+        if (mdns_err == ESP_OK) {
+            LOG_I(TAG, "mDNS AP initialized, hostname '%s.local'", hostname);
+            mdns_hostname_set(hostname);
+            mdns_instance_name_set("kidsOS Tactility Device");
+            mdns_service_add(NULL, "_http", "_tcp", 80, NULL, 0);
+            mdns_service_add(NULL, "_tactility", "_tcp", 6666, NULL, 0);
+        }
+    }
+
     return true;
 }
 

TactilityC/Include/tt_mdns.h

@@ -0,0 +1,94 @@
+#pragma once
+
+/**
+ * TactilityC mDNS bindings — usable from external ELF apps.
+ *
+ * Provides synchronous mDNS browsing (PTR queries) and hostname resolution
+ * on top of the ESP-IDF mdns component. The API is intentionally C-only,
+ * string-copy based, to avoid complex lifetime issues across ELF boundaries.
+ *
+ * Implementation lives in Tactility (tt::network::mdns) and is exported via
+ * module symbols. TactilityC provides thin wrappers + symbol export.
+ *
+ * WiFi must be connected for mDNS queries to return results.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define TT_MDNS_MAX_RESULTS 32
+#define TT_MDNS_MAX_ADDRESSES 4
+#define TT_MDNS_MAX_TXT_RECORDS 8
+
+#define TT_MDNS_HOSTNAME_LEN 64
+#define TT_MDNS_INSTANCE_LEN 64
+#define TT_MDNS_SERVICE_TYPE_LEN 32
+#define TT_MDNS_PROTO_LEN 16
+#define TT_MDNS_IP_LEN 64
+#define TT_MDNS_TXT_KEY_LEN 32
+#define TT_MDNS_TXT_VALUE_LEN 64
+
+/** One TXT key-value pair */
+typedef struct {
+    char key[TT_MDNS_TXT_KEY_LEN];
+    char value[TT_MDNS_TXT_VALUE_LEN];
+} TtMdnsTxtRecord;
+
+/** One discovered service (copy-based, no pointers into mdns_result_t). */
+typedef struct {
+    char instanceName[TT_MDNS_INSTANCE_LEN];   ///< e.g. "kidsOS-AB12"
+    char serviceType[TT_MDNS_SERVICE_TYPE_LEN];///< e.g. "_http"
+    char proto[TT_MDNS_PROTO_LEN];             ///< e.g. "_tcp"
+    char hostname[TT_MDNS_HOSTNAME_LEN];       ///< without .local
+    uint16_t port;                              ///< service port
+    char addresses[TT_MDNS_MAX_ADDRESSES][TT_MDNS_IP_LEN]; ///< resolved IPs
+    uint8_t addressCount;
+    char primaryAddress[TT_MDNS_IP_LEN]; ///< first IPv4 or first address
+    uint32_t ttl;
+    TtMdnsTxtRecord txtRecords[TT_MDNS_MAX_TXT_RECORDS];
+    uint8_t txtCount;
+} TtMdnsService;
+
+/** Result set returned by browse. */
+typedef struct {
+    TtMdnsService services[TT_MDNS_MAX_RESULTS];
+    uint8_t count;
+} TtMdnsBrowseResult;
+
+/**
+ * @return true if mDNS is initialized and running.
+ */
+bool tt_mdns_is_available();
+
+/**
+ * Browse for mDNS service instances.
+ *
+ * Blocks for up to timeoutMs.
+ *
+ * @param serviceType e.g. "_http", "_tactility" (with or without leading underscore both accepted, but conventional is with)
+ * @param proto e.g. "_tcp", "_udp"
+ * @param timeoutMs how long to wait (e.g. 3000ms). 0 = use default 3000ms.
+ * @param maxResults clamp to TT_MDNS_MAX_RESULTS. 0 = default 20.
+ * @param outResult filled with 0..maxResults services. Caller provides storage.
+ * @return true on successful query (even 0 results is success). false if mDNS not running.
+ */
+bool tt_mdns_browse(const char* serviceType, const char* proto, uint32_t timeoutMs, size_t maxResults, TtMdnsBrowseResult* outResult);
+
+/**
+ * Resolve a hostname like "kidsOS-AB12" or "kidsOS-AB12.local" to an IPv4 address string.
+ *
+ * @param hostname hostname (".local" suffix optional)
+ * @param timeoutMs wait time, 0 = 2000ms default
+ * @param outIp buffer of at least TT_MDNS_IP_LEN, filled with IP string e.g. "192.168.1.42"
+ * @return true if resolved.
+ */
+bool tt_mdns_resolve_hostname(const char* hostname, uint32_t timeoutMs, char* outIp);
+
+#ifdef __cplusplus
+}
+#endif

TactilityC/Source/tt_init.cpp

@@ -9,6 +9,7 @@
 #include "tt_hal_display.h"
 #include "tt_hal_touch.h"
 #include "tt_hal_uart.h"
+#include "tt_mdns.h"
 #include <tt_lock.h>
 #include "tt_lvgl.h"
 #include "tt_lvgl_keyboard.h"
@@ -361,6 +362,10 @@ const esp_elfsym main_symbols[] {
     ESP_ELFSYM_EXPORT(tt_timezone_set_format_24_hour),
     // tt::lvgl
     ESP_ELFSYM_EXPORT(tt_lvgl_spinner_create),
+    // mDNS
+    ESP_ELFSYM_EXPORT(tt_mdns_is_available),
+    ESP_ELFSYM_EXPORT(tt_mdns_browse),
+    ESP_ELFSYM_EXPORT(tt_mdns_resolve_hostname),
 
     // stdio.h
     ESP_ELFSYM_EXPORT(rename),

TactilityC/Source/tt_mdns.cpp

@@ -0,0 +1,76 @@
+#include "tt_mdns.h"
+
+#include <Tactility/network/Mdns.h>
+#include <cstring>
+#include <algorithm>
+
+extern "C" {
+
+bool tt_mdns_is_available() {
+    return tt::network::mdns::isAvailable();
+}
+
+bool tt_mdns_browse(const char* serviceType, const char* proto, uint32_t timeoutMs, size_t maxResults, TtMdnsBrowseResult* outResult) {
+    if (outResult == nullptr) return false;
+    if (serviceType == nullptr || proto == nullptr) return false;
+
+    memset(outResult, 0, sizeof(TtMdnsBrowseResult));
+
+    uint32_t effectiveTimeout = timeoutMs == 0 ? 3000 : timeoutMs;
+    size_t effectiveMax = maxResults == 0 ? 20 : maxResults;
+    effectiveMax = std::min<size_t>(effectiveMax, TT_MDNS_MAX_RESULTS);
+
+    std::vector<tt::network::mdns::Service> services;
+    if (!tt::network::mdns::browse(serviceType, proto, effectiveTimeout, effectiveMax, services)) {
+        return false;
+    }
+
+    size_t toCopy = std::min(services.size(), static_cast<size_t>(TT_MDNS_MAX_RESULTS));
+    for (size_t i = 0; i < toCopy; i++) {
+        const auto& src = services[i];
+        auto& dst = outResult->services[i];
+
+        strncpy(dst.instanceName, src.instanceName.c_str(), TT_MDNS_INSTANCE_LEN - 1);
+        strncpy(dst.serviceType, src.serviceType.c_str(), TT_MDNS_SERVICE_TYPE_LEN - 1);
+        strncpy(dst.proto, src.proto.c_str(), TT_MDNS_PROTO_LEN - 1);
+        strncpy(dst.hostname, src.hostname.c_str(), TT_MDNS_HOSTNAME_LEN - 1);
+        dst.port = src.port;
+        dst.ttl = src.ttl;
+        strncpy(dst.primaryAddress, src.primaryAddress.c_str(), TT_MDNS_IP_LEN - 1);
+
+        size_t addrCount = std::min(src.addresses.size(), static_cast<size_t>(TT_MDNS_MAX_ADDRESSES));
+        dst.addressCount = static_cast<uint8_t>(addrCount);
+        for (size_t a = 0; a < addrCount; a++) {
+            strncpy(dst.addresses[a], src.addresses[a].c_str(), TT_MDNS_IP_LEN - 1);
+        }
+
+        size_t txtCount = std::min(src.txtRecords.size(), static_cast<size_t>(TT_MDNS_MAX_TXT_RECORDS));
+        dst.txtCount = static_cast<uint8_t>(txtCount);
+        size_t idx = 0;
+        for (const auto& kv : src.txtRecords) {
+            if (idx >= txtCount) break;
+            strncpy(dst.txtRecords[idx].key, kv.first.c_str(), TT_MDNS_TXT_KEY_LEN - 1);
+            strncpy(dst.txtRecords[idx].value, kv.second.c_str(), TT_MDNS_TXT_VALUE_LEN - 1);
+            idx++;
+        }
+    }
+
+    outResult->count = static_cast<uint8_t>(toCopy);
+    return true;
+}
+
+bool tt_mdns_resolve_hostname(const char* hostname, uint32_t timeoutMs, char* outIp) {
+    if (hostname == nullptr || outIp == nullptr) return false;
+    memset(outIp, 0, TT_MDNS_IP_LEN);
+
+    uint32_t effectiveTimeout = timeoutMs == 0 ? 2000 : timeoutMs;
+    std::string ip;
+    if (!tt::network::mdns::resolveHostname(hostname, effectiveTimeout, ip)) {
+        return false;
+    }
+
+    strncpy(outIp, ip.c_str(), TT_MDNS_IP_LEN - 1);
+    return true;
+}
+
+} // extern "C"

Tests/Tactility/Source/AppManifestParsingTest.cpp

@@ -81,3 +81,70 @@ TEST_CASE("parseManifestV2() should fail when the app id is invalid") {
     AppManifest manifest;
     CHECK_EQ(parseManifestV2(properties, manifest), false);
 }
+
+TEST_CASE("parseAppFlagsString() should parse various flag combinations") {
+    CHECK_EQ(parseAppFlagsString(""), 0);
+    CHECK_EQ(parseAppFlagsString("None"), 0);
+    CHECK_EQ(parseAppFlagsString("HideStatusBar"), AppManifest::Flags::HideStatusBar);
+    CHECK_EQ(parseAppFlagsString("hidden"), AppManifest::Flags::Hidden);
+    CHECK_EQ(parseAppFlagsString("HideStatusBar,Hidden"), AppManifest::Flags::HideStatusBar | AppManifest::Flags::Hidden);
+    CHECK_EQ(parseAppFlagsString(" hidestatusbar , hidden "), AppManifest::Flags::HideStatusBar | AppManifest::Flags::Hidden);
+    CHECK_EQ(parseAppFlagsString("HideStatusBar, Hidden"), AppManifest::Flags::HideStatusBar | AppManifest::Flags::Hidden);
+}
+
+TEST_CASE("parseManifest() should parse V1 flags for fullscreen") {
+    TestFile file("test-manifest-v1-flags.properties");
+    file.writeData(
+        "[manifest]\n"
+        "version=0.1\n"
+        "[target]\n"
+        "sdk=0.0.0\n"
+        "platforms=esp32\n"
+        "[app]\n"
+        "id=one.tactility.sdktest\n"
+        "versionName=0.1.0\n"
+        "versionCode=1\n"
+        "name=SDK Test\n"
+        "flags=HideStatusBar\n"
+    );
+
+    AppManifest manifest;
+    CHECK_EQ(parseManifest(file.getPath(), manifest), true);
+    CHECK_EQ(manifest.appFlags & AppManifest::Flags::HideStatusBar, AppManifest::Flags::HideStatusBar);
+}
+
+TEST_CASE("parseManifest() should parse V2 flags for fullscreen") {
+    TestFile file("test-manifest-v2-flags.properties");
+    file.writeData(
+        "manifest.version=0.1\n"
+        "target.sdk=0.0.0\n"
+        "target.platforms=esp32\n"
+        "app.id=one.tactility.sdktest\n"
+        "app.version.name=0.1.0\n"
+        "app.version.code=1\n"
+        "app.name=SDK Test\n"
+        "app.flags=HideStatusBar\n"
+    );
+
+    AppManifest manifest;
+    CHECK_EQ(parseManifest(file.getPath(), manifest), true);
+    CHECK_EQ(manifest.appFlags & AppManifest::Flags::HideStatusBar, AppManifest::Flags::HideStatusBar);
+}
+
+TEST_CASE("parseManifest() should parse combined flags") {
+    TestFile file("test-manifest-v2-flags2.properties");
+    file.writeData(
+        "manifest.version=0.1\n"
+        "target.sdk=0.0.0\n"
+        "target.platforms=esp32\n"
+        "app.id=one.tactility.sdktest\n"
+        "app.version.name=0.1.0\n"
+        "app.version.code=1\n"
+        "app.name=SDK Test\n"
+        "app.flags=HideStatusBar,Hidden\n"
+    );
+
+    AppManifest manifest;
+    CHECK_EQ(parseManifest(file.getPath(), manifest), true);
+    CHECK_EQ(manifest.appFlags, (AppManifest::Flags::HideStatusBar | AppManifest::Flags::Hidden));
+}