Services I run for fun and you can use free of charge. Some are not available over regular web browsers, but are actively used by their respective communities.
Stuff I Wrote
TLGS - Totally Legit Gemini Search
gemini://tlgs.one
https://tlgs.one (HTTP proxy)
An experimental and scalable search engine for Gemini protocol content. Written in C++20, the codebase is almost entirely lock-free and scales from a few cores to massive core counts. The crawler achieves over 200 pages per second on just 2 slow VPS cores.
Runs on SALSA, a ranking algorithm designed for the early internet. The implementation follows data-oriented design patterns making SIMD optimization easy, providing a free 10% overall speedup (including database query time!).
I wrote most of the supporting libraries, including dremimi and spartoi - Gemini and Spartan protocol plugins for the Drogon web framework (which I also maintain).
drogon.org
The official website for the Drogon web framework. Written in C++20 using the latest version of Drogon itself, this site serves as a reference for production deployment.
Previously hosted on IBM's LinuxONE OSS cloud (yes, it ran on a mainframe). Now runs on a regular VPS.
Stuff I Run
GNUnet Node
I run several GNUnet nodes 24/7 across my servers for testing and development. They help other users store files safely and assist with DHT queries and data transport.
I publicly provide my peer list for bootstrapping. Find it at http://clehaxze.tw:9876/