ProtonVPN Android app
Lightweight Java Service Wrapper for Windows
Precision Trigonometry: Advanced Calculator for Complex Math
Single sided linked list (kind of lib with test-code, C, C++ and java)
software for email automation (newsletters, transaction mails, etc.)
Makani was developed a commercial-scale airborne wind turbine
Library tools to collect timing in Java, C, C++
Personal firewall for linux desktop and android phone
Integrated to system status data based on the HDFS
EaseFilter Secure Sandbox Example