New suggestions: bash-like shell (with curl etc), telnetd server, toml reader/writer, efficient umsgpack, serial connector, and mpu6050 driver

[gitcnd]

Linux-like shell for MicroPython. Full featured, very lightweight:
https://github.com/gitcnd/mpy_shell

Powerful telnetd server to access MicroPython REPL (with strong password support, and unlimited connections)
https://github.com/gitcnd/telnetd

MPU6050 (Accelerometer/Gyroscope) driver which works on ESP32
https://github.com/gitcnd/MPU6050-ESP32-MicroPython

Commandline serial emulator to connect to MicroPython boards. Full control over DTR/RTS lines etc (works for all boards, including ESP32_CAM and other hardware-reset-wired boards, and also ESP32_S2/S3/C2 etc as well)
https://github.com/gitcnd/mcu_serial

Read and Write .toml files easily (perfect for storing settings like wifi names, passwords, etc)
https://github.com/gitcnd/toml

A streamlined low-memory-compatible umsgpack for putting arbitrary python datastructures into efficient b'' strings suitable for sending over espnow/web/etc
https://github.com/gitcnd/micropython-msgpack