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Syed AnzarAug 26, 2026 • 7 min read
Your Cron Job Is Lying to You: A Dependency-Free Watchdog for Silent Failures
Three dependency-free guards that stop cron jobs from silently failing: pipefail, unbuffered output,...
#devops#bash#python#automation
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LilyAug 30, 2026 • 23 min read
How My Own Script Killed Instagram Sessions Every Night: pkill and a Shared Chrome Profile
I built a fleet of 171 automation jobs to grow my business — and one of them was quietly murdering.....
#automation#bash#devops#monitoring
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LilyAug 31, 2026 • 24 min read
8 Runs a Day Became 3: Building a launchd plist Integrity Guard in 73 Lines
At 12:04 on August 23, 2026, something quietly rewrote my outreach DM schedule down to three runs a....
#macos#automation#bash#python
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ilya mozerovAug 29, 2026 • 7 min read
My scanner reported honest coverage every day, and it was the same coverage every day
I have a tool whose whole job is catching tools that lie. The idea is small. A lot of my scripts...
#monitoring#sre#testing#bash
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ilya mozerovAug 28, 2026 • 10 min read
"Log this once" is a tense change, not a rate limit
A sensor on my machine returned nothing at all — empty stdout, empty stderr, exit code 2 — on every....
#bash#sre#observability#monitoring
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ilya mozerovAug 29, 2026 • 7 min read
A fault model is not a flag
I have a small consensus tool. It takes votes on stdin, keeps per-topic state in a JSON file,...
#distributedsystems#consensus#testing#bash
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IgorAug 26, 2026 • 7 min read
Meet Watchdog: A Small, Safe Bash Watchdog for Linux Services
A service does not have to be large to become operationally important. A small API behind a reverse....
#devops#linux#monitoring#bash
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ilya mozerovAug 31, 2026 • 6 min read
Your default branch is an allowlist, and it votes healthy
We run a fleet of long-lived agent sessions that coordinate through a claim file: before touching...
#bash#debugging#distributed#reliability
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LilyAug 31, 2026 • 23 min read
28 Hours of Green Logs, Zero Replies: How a Single `echo` Line Swallowed Every Exit Code
For 24 hours, every dashboard was green. Every launchd job reported exit 0, and the logs lined up...
#automation#bash#node#debugging
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Kengah IreneausAug 31, 2026 • 6 min read
Defensive Scripting with bash
DEFENSIVE PROGRAMMING IN BASH Bash is a very powerful tool, but it is important to employ...
#bash#beginners#automation#linux
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LilyAug 28, 2026 • 24 min read
3 Wrong Guesses About a Chrome Slot Limit: 3 6 Reserved Lanes
Automation doesn't break when you write it. It breaks in production, weeks later, quietly — and my.....
#automation#bash#launchd#devops
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Kengah IreneausSep 1, 2026 • 7 min read
sysk a CLI health monitor in bash and python, how i built it
how i built sysk a CLI system health monitor
#bash#automation#python#linux
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LilyAug 27, 2026 • 22 min read
Our Social Posting Automation Was Dead for 14 Days and the Monitoring Never Noticed
A ¥1.2M/month automation setup had one lane — social posting — completely dead for 14 days. And the...
#automation#bash#devops#monitoring
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ilya mozerovAug 30, 2026 • 5 min read
Your fake binary on PATH does not survive sudo, and the test does the real thing instead of failing
The standard way to test a script that shells out to some dangerous command is to put a fake copy...
#bash#testing#linux#devops
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Alan VargheseSep 1, 2026 • 3 min read
Automate Your Linux Updates Like a Pro (with Rollbacks!) 🚀
Running sudo apt-get update && sudo apt-get upgrade -y is fine for your local dev machine......
#automation#devops#linux#bash
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Ardiansyah SulistyoSep 2, 2026 • 4 min read
Get a Telegram Notification Every Time Someone SSHes Into Your Server
A fresh VPS starts receiving SSH brute-force attempts within minutes of going public. Most of us fin...
#linux#security#bash#devops
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Shinji ItoAug 26, 2026 • 3 min read
Building a Unix Shell from First Principles in Rust
I’ve been working on a project called Whelk, a Unix shell built from first principles in Rust. The....
#rust#systems#linux#bash
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LilyAug 29, 2026 • 21 min read
8 Pitfalls I Hit Auto-Repairing 'Plugin directory does not exist' — and the 3-Layer Guard That Stopped a 22 8 Wipeout
Liquid syntax error: Unknown tag 'endraw'
#automation#bash#macos#devops
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LilyAug 29, 2026 • 24 min read
Editing the plist Changed Nothing: launchd Kept Running My Old 30s Timeout Until 31 Lines of Bash Fixed It
I'm Lily. I made ¥100k/month in college, pushed it to ¥600k/month juggling multiple side gigs, lost....
#launchd#macos#bash#automation
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LilyAug 29, 2026 • 6 min read
A launchd Job That Fires Once on Deprecation Day, Then Deletes Itself — and the 4 Pitfalls I Hit
This is a follow-up to my earlier post, "Automating a config migration with a one-shot launchd job."...
#launchd#macos#automation#bash
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LilyAug 30, 2026 • 20 min read
Make Codex Prove It: A Three-File Design That Leaves Evidence on Disk
An AI agent telling you "done" is not evidence. When I started delegating work to Codex, I took thos...
#automation#bash#ai#devops
0 1
Usman Tahir QureshiAug 26, 2026 • 2 min read
Blue-green deployment that left the old environment running for weeks, doubling infrastructure cost
The deploy worked. The bill doubled. The blue-green cutover went perfectly. Traffic shifted to...
#aws#devops#finops#bash
0 1
LilyAug 28, 2026 • 23 min read
3 Token Burn From an Infinite Retry Loop: How I Made Claude Refill My Article Queue When It Runs Dry
Back when I was a college student earning ¥100,000 a month, one finished article meant my week was.....
#automation#claudecode#bash#ai
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kandzAug 27, 2026 • 3 min read
Writing Secure Shell Scripts: A Guide to Auditing and Sanitizing Unsafe Bash Code
Shell scripting remains the connective tissue of modern deployment pipelines, system administration,...
#bash#devops#security#shell
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