Tag: #databases
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 4 posts
Double-Entry Ledgers: Designing Systems That Never Lose Money
Why a 600-year-old accounting technique is the beating heart of modern payment systems. Debits equal credits, immutable append-only entries, accounts and balances, the answer to "why not just a balance column?", reconcil
2026-07-01 · 15 min read #payments#ledger#accounting#databasesDatabase Transactions and Isolation Levels, Explained
What ACID actually guarantees, the four isolation levels (read uncommitted → serializable), the anomalies each one permits (dirty, non-repeatable, and phantom reads, plus write skew), MVCC, locking versus optimistic conc
2026-06-30 · 13 min read #databases#transactions#acidThe CAP Theorem Without the Hand-Waving
The popular "pick two of three" summary is wrong. This post pins down exactly what each of the three letters means, why in practice you only choose between C and A when a partition happens, why PACELC is the more complet
2026-06-23 · 11 min read #distributed-systems#databases#theorySQLite Is Everywhere (and It's Amazing)
The most-deployed database on Earth is not Oracle or Postgres — it is SQLite. It is in your phone, your browser, even on airplanes. A tour of its serverless single-file design, when it beats a client-server database, WAL
2026-06-15 · 11 min read #databases#sqlite#engineering