Codetown ::: a software developer's community
I’m told this is a great intro to reactive programming. So of course, I intend to read it! Here it is: https://gist.github.com/staltz/868e7e9bc2a7b8c1f754
Thoughts?
Added by Michael Levin on May 24, 2018 at 3:12pm — No Comments
you haven’t checked it out already, take a look at www.photofeeler.com. Read about it’s logic. It’s fascinating! Stay tuned for more. I’m blogging form my iPhone!
Added by Michael Levin on May 15, 2018 at 10:00am — No Comments
This Java ecosystem survey is both informative and will be useful to many people. Please fill it out if you have the time.
Added by Michael Levin on May 14, 2018 at 3:30pm — No Comments
For those of you interested in going to Java One, now known as Code One, the call for papers has been extended a week.
This year, Code One will have much more than just Java. You'll find Python and Go, R and much more.
Take a look at the agenda and think about going. And, for an even more exciting time, think about submitting a proposal…
ContinueAdded by Michael Levin on May 13, 2018 at 9:52am — No Comments
Every Java developer, in fact every software developer should have the opportunity to attend a technical conference every year or so. Increasingly, software conferences like Java One (now Code One) are becoming more broad and including multiple technologies. Ian Darwin is now publishing a great calendar of Java-related conferences. Here's the link: …
Added by Michael Levin on May 7, 2018 at 1:33pm — No Comments
If you’re passionate about the state of Istio, know how to leverage it with open source tools such as Prometheus and Zipkin, have an Istio demo, or have a great story or best practice to share, O'Reilly wants to hear from you. Each jam-packed 30-minute session should include your insights on why you have chosen Istio and how you are getting the most out of it. Istio Day sessions will take place on…
Added by Michael Levin on May 2, 2018 at 9:44am — No Comments
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Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
Check out the Codetown Jobs group.

Google has open sourced CEL-expr-python, a Python implementation of the Common Expression Language (CEL), a non-Turing complete embedded policy and expression language designed for simplicity, speed, safety, and portability.
By Sergio De Simone
Form3 runs UK bank payments across three clouds simultaneously. At QCon London, their engineers explained how they built their custom Kubernetes operators, cross-cloud DNS tricks, and distributed databases, and what happened when they tried to sell them in America. Spoiler: US customers wanted East/West failover, not triple-active multi-cloud.
By Steef-Jan Wiggers
At QCon London 2026, Yinka Omole, Lead Software Engineer at Personio, presented a session exploring a recurring dilemma engineers face, whether to spend time mastering the newest technologies and frameworks or to invest in deeper, foundational problems that may appear less exciting but deliver long-term value.
By Daniel Dominguez
DoorDash has launched a multimodal machine learning system that aligns product images, text, and user queries in a shared embedding space. Trained on 32 million labeled query-product pairs using contrastive learning, the system improves semantic search, product ranking, and advertising relevance. Embeddings also support other machine learning tasks across the marketplace.
By Leela Kumili
Stefan Dirnstorfer discusses the shift from DOM-based testing to visual UI agents. He explains why LLMs often fail at precision tasks - like spotting one-pixel shifts or broken road networks - and shares how advanced image registration and "Chain-of-Thought" vision processing are essential for reliable QA. Learn why combining generative AI with classical algorithms is the future of automation.
By Stefan Dirnstorfer
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