From Java to Python
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
·54 views
From Java to Python
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
From Java to Python
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
·103 views
From Java to Python
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
·75 views