diff --git a/docs/firmware/firmware-reverse-engineering.md b/docs/firmware/firmware-reverse-engineering.md
index 10fb0ab..4165d4b 100644
--- a/docs/firmware/firmware-reverse-engineering.md
+++ b/docs/firmware/firmware-reverse-engineering.md
@@ -139,7 +139,7 @@ $ simulavr -P atmega128 -F 16000000 –f build-crumbuino128/ex1.1.elf
 
 Parse BIOS/Intel ME/UEFI firmware related structures: Volumes, FileSystems, Files, etc - [theopolis/uefi-firmware-parser](https://github.com/theopolis/uefi-firmware-parser)
 
-```
+```ps1
 sudo pip install uefi_firmware
 $ uefi-firmware-parser --test ~/firmware/*
 ~/firmware/970E32_1.40: UEFIFirmwareVolume
@@ -152,6 +152,7 @@ $ uefi-firmware-parser --test ~/firmware/*
 
 ## References
 
+* [GreHack22 - SecureDUO - chrisrdlg](https://github.com/chrisrdlg/gh22_SecureDuo)
 * [Loader un binaire Arduino dans IDA - Posted on January 26, 2014 by thanatos](https://thanat0s.trollprod.org/2014/01/loader-un-binaire-arduino-dans-ida/)
 * [REcon 2014 - Reverse Engineering Flash Memory For Fun and Benefit - Matt Oh](https://youtu.be/nTPfKT61730)
 * [Reverse Engineering Flash Memory for Fun and Benefit - Jeong Wook (Matt) Oh](https://www.blackhat.com/docs/us-14/materials/us-14-Oh-Reverse-Engineering-Flash-Memory-For-Fun-And-Benefit-WP.pdf)
\ No newline at end of file
diff --git a/docs/gadgets/esp32.md b/docs/gadgets/esp32.md
index aa139d9..1a308e9 100644
--- a/docs/gadgets/esp32.md
+++ b/docs/gadgets/esp32.md
@@ -10,6 +10,13 @@
 * [scientifichackers/ampy](https://github.com/scientifichackers/ampy) - Utility to interact with a MicroPython board over a serial connection
 * [ESPWebTool](https://esp.huhn.me/) - Flash your ESP32 or ESP8266 through your browser.
 
+
+## Firmwares
+
+* [risinek/esp32-wifi-penetration-tool](https://github.com/risinek/esp32-wifi-penetration-tool) - Exploring possibilities of ESP32 platform to attack on nearby Wi-Fi networks. 
+* [justcallmekoko/ESP32Marauder](https://github.com/justcallmekoko/ESP32Marauder) - A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32 
+
+
 ## Flashing
 
 The ESP32 microprocessor uses the Xtensa instruction set, use `Tensilica Xtensa 32-bit little-endian` in Ghidra.
diff --git a/docs/gadgets/hydrabus.md b/docs/gadgets/hydrabus.md
index 7b887d7..3d950f9 100644
--- a/docs/gadgets/hydrabus.md
+++ b/docs/gadgets/hydrabus.md
@@ -7,9 +7,9 @@
 
 Support many extensions:
 
-- [HydraNFC](https://swisskyrepo.github.io/HardwareAllTheThings/gadgets/hydranfc/)
-- [HydraFlash](https://swisskyrepo.github.io/HardwareAllTheThings/gadgets/hydraflash/)
-- HydraLINCAN
+- [HydraNFC](https://swisskyrepo.github.io/HardwareAllTheThings/gadgets/hydranfc/) - Hydrabus shield for NFC
+- [HydraFlash](https://swisskyrepo.github.io/HardwareAllTheThings/gadgets/hydraflash/) - NAND flash shield
+- [HydraLINCAN](https://github.com/smillier/HydraLINCAN) - Hydrabus shield for LIN and CAN buses
 
 External interactions: