wait-for-it.sh is a pure bash script that will wait on the availability of a host and TCP port. It is useful for synchronizing the spin-up of interdependent services, such as linked docker containers. Since it is a pure bash script, it does not have any external dependencies.
The degooglify.sh script takes as arguments local files and URLs (leading to fonts.googleapis.com). It handles multiple arguments, including mixing of URLs and files. It then downloads the CSS files from URLs provided, and in all local and downloaded files looks for @import (with URL pointing to fonts.googleapis.com) and src: (with URL pointing to fonts.gstatic.com) statements. Once done, it rewrites the files in question to point to the downloaded files.
Unusual and rare keyboard mappings for other alphabets, such as various runic alphabets.
A shell script that uses Mplayer to transcode any DVD (including alternate audio tracks and subtitle layers) into a single .mkv file for archival.
A shell script that turns a brand-new VPS or server into a mail server with a single command. Sets up webmail, IMAP, SMTP, a contacts application, a calendar, and even a web-based control panel for the whole shebang. Includes spam filtering, greylisting, backing up, and TLS certs for everything from Let's Encrypt. Even does virtual domains. No configuration during setup, and you can't really tweak the settings once it's up and running.
A website with a downloadable shell script which turns a raspi into a personal OpenVPN server. Lets you customize the configuration if you like. Appears to use a hardened OpenVPN configuration. The script will work with pretty much any Debian or Ubuntu v14.04 server you stand up someplace. The script can also be use to manage the server so you don't have to fight with the OpenVPN command lines.
A script which uses the Signal CLI utility to send secure messages.