# Structure - `about` - Small About application that shows flipper info - `accessor` - Wiegand server - `archive` - Archive and file manager - `bad_usb` - Bad USB application - `bt` - BLE service and application - `cli` - Console service and API - `crypto` - Crypto cli tools - `debug_tools` - Different tools that we use for debug - `desktop` - Desktop service - `dialogs` - Dialogs service: GUI Dialogs for your app - `dolphin` - Dolphin service and supplementary apps - `gpio` - GPIO application: includes USART bridge and GPIO control - `gui` - GUI service and API - `ibutton` - iButton application, onewire keys and more - `input` - Input service - `infrared` - Infrared application, controls your IR devices - `lfrfid` - LF RFID application - `lfrfid_debug` - LF RFID debug tool - `loader` - Application loader service - `music_player` - Music player app (demo) - `nfc` - NFC application, HF rfid, EMV and etc - `notification` - Notification service - `power` - Power service - `power_observer` - Power debug tool - `rpc` - RPC service and API - `scened_app_example` - C++ application example - `snake_game` - Snake game application - `storage` - Storage service, internal + sdcard - `storage_settings` - Storage settings app - `subghz` - SubGhz application, 433 fobs and etc - `system` - System settings, tools and API - `tests` - Unit tests and etc - `u2f` - U2F Application - `updater` - Update service & application - `application.h` - Firmware application list header