antirez

I believe it's time to build stuff more connected with the low level services. Highly abstracted AWS services are more of a marketing strategy than a real technological need, often times. So one could go for European companies and at the same time develop just what is available via OSS.

me wearing a hardhat and safety vest

It is possible to do C programming safely. You just need the right gear

Can't avoid noticing no crowbar to exit vim in the most extreme situations.

This AWS European Sovereign Cloud just does not make much sense, for an Europe POV. Why to pay AWS to run a cloud in Europe? Running software in part written by europeans like Linux, MySQL, Python and many others? If you are from Europe consider buying services from EU companies

and I speak slowly :)

Many folks told me they learned italian following my channel! Incredible.

My YouTube channel reached 25k subscribers. 5k watch it from outside Italy, with subtitles / dubbed audio, regardless of the fact 80% of the videos are in Italian (soon or later I'll explain the why of this choice). I'm happy about this: YouTube is becoming a cultural media.

I just posted this on Linked In, but @codinghorror.bsky.social talked about this many times. In 2025, it is still so relevant. In fact @antirez.bsky.social live solved this in his YouTube channel. The question remains: why so many developers cannot write code?

New systems are fine if well designed :)

6. Companies discover that complexity is a form of vendor lock-in, among the other things. People that created a mess get promoted, since IT no longer evaluates design quality as one of the metrics for success. GO TO 1.

5. The designer / implementers of the new system lack the passion, design abilities, taste, love for simplicity of the original system replaced. A good part of computing / Internet is substituted with something worse and complicated. Again and again.

4. The IT company decides to replace this old good system with something new. However, they need to impose it to the world, to some extend, otherwise they would still forced to support the old one, or to deal with incompatible systems. A team is created.

3. This large IT company realizes that such old system they are using is creating a friction for what the company is using it for. Sometimes this is true, oftentimes this feeling arises because the company development process itself is dysfunctional, or the software culture wrong

2. Some large IT company is capitalizing such system in one way or the other. Systems evolve, computers and networks are faster, also the way computers work shift, now many of them are phones. Software as a service also changes requirements and dynamics.

In recent years, in applied computer science there is this phenomenon that repeats itself slowly ruining everything we have:

1. Many years ago a well designed system was created: simplicity and orthogonality of ideas are often part of the system. Such system is well understood.

But to do so, what is needed is to make the quantization format documented, and part of the API. Which... may not be a bad idea after all.

FP32 is totally the way to go... Even if the API looks like "float array in input", I believe a client should go for the FP32 format. It's much faster and smaller. However I would like to implement too the ability to send INT8 as well. 1/4 of the bandwidth.

YouTube video by Salvatore Sanfilippo Implementing the Redis VRANGE command using AI: to learn a few things

[new Youtube video] Writing Redis VRANGE using AI: how I prepare the context, and how the human in the loop is crucial to obtain good results:

www.youtube.com/watch?v=3Z7T...

It's a lexicographical iterator, you can get all the elements in ranges

In order to implement the Redis Vector Sets VRANGE, I used AI to show better my point about the latest blog post and why vibe coding is *not* the way. Soon I'll release a video in my YouTube channel (in English) to see how Claude and Gemini perform and how the human is the key.

I have Gemini Code with a plan and never experienced improvements in reviews / discussions using the agent instead of the plain web chat.

Haha I would say it's invariable. One Redis many Redis. Otherwise Redises sounds kinda ok? Not sure being not mother tongue. What's your best pick?

Blog post: Coding with LLMs in the summer of 2025 (an update)

antirez.com/news/154

YouTube video by Salvatore Sanfilippo Vector Sets: the implementation and biases of VRANDMEMBER

Just published a new video about Vector Sets: how is VRANDMEMBER implemented? What is its distribution? And how do you extract a random element out of an HNSW graph?

www.youtube.com/watch?v=Xreg...

YouTube video by Salvatore Sanfilippo Random variables

For my YouTube C course weeks ago I created an intro with some music. People liked it and asked what song it was so yesterday night I turned it into a full song:

youtu.be/HzBqda0Jg3E?...

I just want to tell everybody that I don't care what price BTC will reach. For me it's a 🤡 level speculation and I will never invest into it.

Please also make sure to check this:

redis.io/docs/latest/...

This is a process that requires some experience (disclaimer about tweet sized support) but the gist of it is:

1. Backup all.
2. Upgrade replicas one by one.
3. Promote to primary, switch clients to new primary.
4 GOTO 2.
5. Don't enter an infinite loop.

2 may depend on the HA solution in place.

Do you like Daft Punk? I do. Many years before, in 1979, a few Italian composers created what later inspired many later musicians: the Rondò Veneziano.

en.wikipedia.org/wiki/Rond%C3...

www.youtube.com/watch?v=Y4Fr...

I mean SSL (Self Supervised Learning) not "SUL" :D