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2026-07-17pythonmonitoringalertingtrading-botstatisticssignal-noise

Killing Alert Noise with Sigma

My bot watches a list of instruments during the day and pings my phone when something moves. The first version had the obvious rule: alert when any instrument moves more than a flat 3% from yesterday's close.

The Bot That Lied by Being Logged Out

The day I moved my bot's broker gateway from a tmux session to a proper systemd service, I created the most educational outage of the whole project, and the scariest part is how good everything looked while it was broken.

The Server That Died in Silence

Here is an uncomfortable question for anyone running a homelab: if one of your servers died right now, how long would it take you to find out?