HTCFlasher (formerly known as HERMflasher) is a tool which allows you to flash ROMs on most current HTC devices. It has some extra features that the original HTC RUU doesn't have. For example, it can present a serial prompt to the bootloader (replacing mtty), or it can dump NBH file contents (.nb ROM parts).
The Mandos system allows computers to have encrypted root file systems and at the same time be capable of remote or unattended reboots. The computers run a small client program in the initial RAM disk environment which will communicate with a server over a network. All network communication is encrypted using TLS. The clients are identified by the server using an OpenPGP key that is unique to each client. The server sends the clients an encrypted password. The encrypted password is decrypted by the clients using the same OpenPGP key, and the password is then used to unlock the root file system.
picloader is a small bootloader for Microchip® PIC16F88 devices. This small program, once compiled, can be uploaded into these chips. Chips programmed with this code are capable of being programmed directly by the serial port easily. Through a serial shell, one can also upload small native .hex binaries easily and without any further cost.
ramlog acts as a system daemon that maintains log files in memory instead of hard disk while the system is running. On startup, it creates a ramdisk, copies files from /var/log into the ramdisk, and mounts the ramdisk as /var/log. All logs after that will be updated on the ramdisk. When shutting down or restarting the service, it saves log files back to hard disk. This service drastically reduces the frequency of hard disk usage, which can be useful when the system runs on battery or uses flash memory instead of a hard disk.