Building an Offline-First Knowledge Hub with Obsidian
A Markdown-first workflow for private notes, public articles, research references, and website publishing.
Articles
Technical articles
Edited essays and implementation writeups that are ready to share beyond the notebook.
Understanding Attention Masks in Transformers
Why masks use very negative values before softmax, and how padding and causal masks solve different problems.
FIFO Inventory Deduction and LIFO Stock Return
Designing batch-based stock deduction and reverse stock return with .NET, MySQL, and clear transaction boundaries.
Handling Concurrent Redemption Operations in .NET and MySQL
A practical design note for preventing double state transitions when Reject and Cancel requests race each other.