Java · Teaching project
Mini GPT
A character-level GPT written from scratch in plain Java with no ML library at all — bigrams, then backprop by hand, then a small transformer.
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Lab
Write-ups with measured numbers.
Numbers taken from records rather than recollection, and a black box taken apart on screen. Every input is shown, so a figure is something to check rather than to trust.
Web · Cost model
Usage Simulator
What a Claude Code task really costs, and how far each plan carries you — every coefficient measured from real session transcripts.
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Report · Time analysis
Time Study
Where the hours actually went on an AI-assisted project, attributed from session records and git history rather than recalled.
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