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.NET 10 changed a small tracing rule that can quietly invalidate a custom sampler. With .NET 10...


I grew a side hustle from ¥100k a month to ¥600k by stacking gigs, watched it drop to zero overnight...


We had a CPU frequency sensor that had printed two lines in its entire life. Both said...


A service does not have to be large to become operationally important. A small API behind a reverse....


I have a poller that watches a wifi link. Every 60 seconds it asks "are we associated?", and when th...


A sensor on my machine returned nothing at all — empty stdout, empty stderr, exit code 2 — on every....


The knob nobody defends If you have ever measured a tail — p95 latency, a Hill estimator,...


I built a fleet of 171 automation jobs to grow my business — and one of them was quietly murdering.....


The alarm that cannot see the thing it is watching I keep a small research tier in a git...


The Internet is not One Wire When you open a website, it feels instant and it feels like one step.....


I have a tool whose whole job is catching tools that lie. The idea is small. A lot of my scripts...


I have a poller that watches a wifi link. Every 60 seconds it asks "are we associated?" — if not, it...


A managed backend paused on free-tier exhaustion, taking Postgres, auth and storage with it. Every r...


Three in the morning is when a free tier starts lying to you. Your dashboard shows two hundred...


A heartbeat monitor watches for absence, not presence. The trap is not the check — it is the alert d...


The APC SMT1500C is a popular 1500VA Smart-UPS used for protecting servers, workstations, networking...


In Part 1, we established how to implement a universal capture layer across Gemini CLI, Antigravity,...


I run a handful of n8n workflows unattended. A few weeks ago I noticed one had been finishing...


At 13:33 today a real job on my machine was killed by the kernel for exceeding its memory...


Another one from the same one-person-AI-company setup I've written about before: Claude Code builds....


If you have ever built a health check, you have probably written something close to this: const.....


A ticket calendar looks like an easy automation target: request a page, search for a date, and send....


Nagios Core is an open-source monitoring tool for networks, services, and applications, using the...


A practical review of metric timing, query scope, notification delivery, suppression, and operator.....