Nanostack

M5Stack is a modular hardware and open-source software platform for IoT prototyping and deployment. Its standard 5 × 5 cm system uses stackable functional modules built around an ESP32 microcontroller, with features including a microSD card slot, USB-C port, and expansion connectors. M5Stack also provides multifunctional base modules and ODM services for projects ranging from prototypes to mass production. In the cited video, M5Stack hardware is used by VibeWatch as a smartwatch interface for controlling multiple AI coding agents.

Nanoda is a Rust-based tool that independently checks formal proof declarations in a Rust implementation.

Cap'n Proto is a binary data interchange format, interface definition language, and capability-based RPC system developed around core tools and a C++ library. Its generated code lets programs in multiple languages read a shared memory layout without an additional serialization step, and it provides RPC capabilities for communicating between components. The project describes itself as a binary alternative to JSON and as a faster alternative to Protocol Buffers; the repository contains the development branch and warns that it may include breaking API changes.

ESP32 Bit Pirate is open-source ESP32-S3 firmware that turns supported development boards into multi-protocol hardware development and analysis tools, inspired by the Bus Pirate. It provides a command-line interface over USB serial or Wi-Fi web serial for sniffing, sending, testing, and scripting wired protocols such as I2C, SPI, UART, 1-Wire, CAN, GPIO, JTAG, and USB, as well as wireless technologies including Bluetooth, Wi-Fi, Sub-GHz, RFID, infrared, LoRa, and FM. The firmware includes protocol-specific tools such as EEPROM and flash access, UART bridges, device scanning, signal recording and replay, radio analysis, PWM and direct I/O control, and Bus Pirate-style bytecode or Python scripting. The project supports several ESP32-S3-based boards, including ESP32-S3 Dev Kits, M5Stack devices, and LILYGO boards, and provides web tools, hardware guides, recipes, and documentation through its project website.