A Gentle Introduction to PyTorch: Tensors Before Attention
Before I could make sense of attention code, I needed PyTorch's tiny tensor vocabulary to stop feeling mysterious. This first session covers shapes, axes, batching, and the important difference between stack, cat, multiplication, and dot products.
11 Sep 2026
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4 min read
·53 views
FastAPI for Spring developers: the boilerplate that isn't there
I opened a FastAPI file as a Spring engineer and kept noticing what wasn't there: no MapStruct mapper, no @Valid, no springdoc. The type signature had already done the work.
1 Sep 2026
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5 min read
·77 views
Jinja2 from the engine up
The same engine powers Flask pages, Ansible playbooks and static sites. Here is Jinja2 learned from the engine out - delimiters, autoescaping, inheritance and the Environment - with every concept run by hand, coming from the JVM.
23 Aug 2026
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7 min read
·102 views
Learning Python as a Java Dev: My On-Ramp to AI
I'm a Spring/Kafka backend engineer who could read Python but never wrote it. The AI world pulled me in, so I learned it by building a 10-lesson course that maps every concept back to Java, then built the tutor agent that taught me.
19 Aug 2026
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4 min read
·74 views