ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

QuestDB is a high performance, open-source, time-series database

MIT Deep Learning Book in PDF format (complete and parts) by Ian Goodfellow, Yoshua Bengio and Aaron Courville

TCP port forwarding software, written in Java: forwards a local TCP port (e.g. 127.0.0.1:1521) to external port (e.g. 0.0.0.0:1522)