Another Javascript trap with arrays
JavaScript arrays are a famous source of trouble. E.g. when you access index out of bounds, you don’t get an exception, you get undefined. This, by the way, breaks type […]
Hacker’s diary
Editing your resume with AI? Not recommended
I asked Fable 5.1, Anthropic’s flagship model, to tailor my resume to a specific position. Nothing drastic: just make sure the skills that appear in the job description are specified […]
Rebellion of the machines
We just literally experienced rebellion of the machines. We have a Cursor agent that runs on each PR and conducts a review. At some point we noticed mysterious commits that […]
New excuse in town: “my subagent did it”
AI agents are known for making mistakes in multiple ways. Sometimes they just make things up, aka hallucinate. Sometimes they speculate. Sometimes they are unaware of major developments that happened […]
How to lose your folder: the dangers of storing data in the file system
The Incident A few days ago, we upgraded our server from one type of storage to another. Suddenly, most of our data disappeared from view. It still existed on disk, […]
Daylight savings time is evil
Daylight Savings Time is evil and should be outlawed (Putin’s Russia has already done that! 🙂 ). I am building directing Cursor to build a dashboard and it’s really a […]
IKriv Certs 1.0 – SSL Cert Expiration Checker
When LinkedIn announced they will no longer support email alerts when the certificate expires, I quickly vibe-coded the solution, but it took me a while to “productionize” it so I […]
Difference between Docker and Virtual Machine
Anyone who used virtual machines (VMs) and Docker containers knows that Docker images tend to be much smaller than VM images and to start orders of magnitude faster. But why […]
Redis demystified
Disclaimer: this is a summary for my records after a deep dive into current state of Redis. I tried to be as precise as possible (after all, I am writing […]
Redis: hset with ‘items’ parameter
In Python, Redis.hset function has ‘items’ that, per documentation “accepts a list of key/value pairs that will be added to hash “name“.”. You would think that it’s something like [(“key1”, […]