I'm Sandro Cavalieri Foschini, fosk online. By day I work in networking and cybersecurity. This is where I keep what I make out of curiosity, or to solve a problem of my own.
The formal version of me is at sandro.cavalierifoschini.it.
Windows, Linux, macOS · v0.3.0 · in development
A graphical GPU monitor built on a fork of gputaskman. It shows what's using the graphics card, and why.
VRAM is broken down in real time across LLMs, AI processes, games and browsers, next to utilization, temperature, power and clocks. For local models it goes deeper: weights, KV cache, parameters and the loaded file.
Android, iOS · in design
An app for measuring real bandwidth against public iperf3 servers, with no ads and no tracking. It doesn't exist yet: these are concept mockups.
A sum I've done hundreds of times, in pocket form. Follow the signal from the transmitter to the receiver: it has to arrive above the sensitivity line, with some margin to spare.
Free-space estimate, with the Fresnel radius at mid-path. A real design adds rain, oxygen absorption at 60 GHz, obstructions, cables and power limits.
Running language models on my own GPU, which is how gputaskman GUI started.
How networks are defended, and how they're put to the test.
Treating the home as a small network to design, measure and automate.