Blog

All articles on software, systems, and the decisions behind them. Newest first.

Crypto Funding Rate Arbitrage Explained

Understand funding payments in crypto, how traders compare two exchanges, and why a rate gap does not guarantee a profit.

Systems Engineering · Oct 4, 2026 • 7 min read

Recording Factory Stock Without Duplicates

Keep stock counts correct when two people submit changes or a lost response leaves an operator unsure whether to send the same entry again.

System Analysis · Oct 4, 2026 • 10 min read

Speeding Up a Shipment Booking API

Make a slow shipment booking list easier to investigate without skipping bookings, mixing customer data, or showing outdated status.

Backend Engineering · Oct 4, 2026 • 10 min read

How AI Credits Are Charged and Refunded

How an AI credit balance changes, why repeated requests may cost again, and when an interrupted answer is charged or refunded.

Cloud Engineering · Oct 4, 2026 • 9 min read