I use these tools occasionally, and have posted these mainly for myself. If you are looking for something more specific, just ask.

A simple shell script which notifies user before locking the screen after some inactivity and then locks the screen.

A script that monitors whether a Bluetooth device is connected or not. If the device is connected, all is okay; otherwise, the screen gets locked immediately until the device reconnects.

All USB Audio Class (USB HAL) drivers on Android have a limiter of sample rates at 96kHz. This magisk module unlocks the limiter.

A modular zfs unlocker hook for mkinitcpio on Archlinux.

Script to remove modification restrictions from PDF files

Flash a STM32F1 chip with some already compiled binary and optionally lock the chip with Readout protection level 1. Unlocking will erase the chip completly

This repository provides steps to disable BD PROCHOT at boot time in a Linux system.

USB (HAL) Audio Class drivers on Android have a limiter of sample rates at 96kHz. This magisk module unlocks the limiter.

A helper script that unlocks macOS'es encrypted APFS volumes before login

Easily flash, downgrade, unlock, backup, block/ unblock BIOS updates.

Unlocks docker hub in Russia, Cuba, Iran, North Korea, Republic of Crimea, Sudan, and Syria

Use YubiKey to unlock a LUKS partition

MiTool : without a PC (using another phone via Termux), allows you to unlock the bootloader, flash ROMs, ... and offers many other features for Xiaomi devices