FontVerter is an open source Java library for converting and manipulating various font formats, normalizing invalid fonts and extracting fonts from PDFs. Primarily supports adobe font formats that only really come from PDFs and started as a side module for the Pdf2Dom PDF to HTML converter library. However it does support some other non PDF specific formats. Many older OTF/TTF fonts coming from PDFs also have many issues that cause them to not work in modern browsers so FontVerter also contains some code for fixing invalid old fonts. See the github page for full details and supported font conversions.
An Intellij Plugin that allows you to bind keyboard shortcuts to toggle various IntelliJ inspections such as spell check.
Hair-O-Matic is an Arduino electrolysis machine [hair removal] with a companion Android app that connects to the Arduino over bluetooth and acts as the UI. Written in C++ and Java.