Agonas is an open source game tournament management tool. It is designed primarily with LAN Parties in mind but can be used for online tournaments. Think of Toornament or Challonge but open source, self-hosted, with more functionalities and built with modern web technologies (InfernoJS & .NET Core)
It is currently under development and has not yet been released on Github.
No coin is a tiny browser extension aiming to block coin miners such as Coinhive.
LANaconda is a small 50 people LAN Party I have been organising with a few friends in Switzerland. The event is running once to twice per year and I have been mainly responsible of the technical side (network, servers, development). Some of the smaller projects include the website (lanaconda.ch) and the intranet which is the main inspiration behind Agonas.