There are 3 repositories under nuttx topic.
Apache NuttX Apps is a collection of tools, shells, network utilities, libraries, interpreters and can be used with the NuttX RTOS
Apache NuttX RTOS for PinePhone
Lup Yuen's Articles and Resume
TCC (Tiny C Compiler) for 64-bit RISC-V, compiled to WebAssembly with Zig Compiler
Apache NuttX RTOS for Pine64 Ox64 64-bit RISC-V SBC (BouffaloLab BL808)
Emulate Apache NuttX RTOS for Arm64 with Unicorn Emulator (Avaota-A1 SBC)
Apache NuttX RTOS on 64-bit RISC-V Sophgo SG2000 (T-Head C906 / Milk-V Duo S)
Zig on RISC-V BL602 with Apache NuttX RTOS and LoRaWAN
Apache NuttX RTOS for Pine64 Star64 64-bit RISC-V SBC (StarFive JH7110)
Visual Programming for Zig with NuttX Sensors
LVGL for PinePhone (and WebAssembly) with Zig and Apache NuttX RTOS
Apache NuttX RTOS in the Web Browser: TinyEMU with VirtIO
Zig LVGL Touchscreen App on Apache NuttX RTOS
Rust Embedded HAL for Apache NuttX RTOS
Hynitron CST816S Touch Controller Driver for Apache NuttX RTOS
Apache NuttX OS as featured in "The RISC-V BL602 Book"
Apache NuttX Testing contains shared test infrastructure for Apache NuttX (incubating)
Rust talks I2C to Bosch BME280 Sensor on Apache NuttX RTOS
Rust Stub Library for Apache NuttX OS
RISC-V emulator that is written in Rust. Support Linux, xv6, NuttX, FreeRTOS, Zephyr OS etc.
Visual Programming for Zig with NuttX Sensors
[Experimental Port for Apache NuttX RTOS] QuickJS Javascript Engine
Emulate Sophgo SG2000 SoC / Milk-V Duo S SBC with TinyEMU RISC-V Emulator
D Apps for Apache NuttX RTOS and QEMU RISC-V