Blog
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PostgreSQL Complete Guide | MVCC· VACUUM
PostgreSQL internals: MVCC snapshots, VACUUM/autovacuum, cost-based planner & stats, B-tree vs GiST vs GIN—plus partitioning, replication, backups.
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PostgreSQL vs MySQL: Schema, Transactions, Queries &
PostgreSQL vs MySQL compared for schema flexibility, ACID, SQL features, replication, and ops—plus Node.js–friendly criteria to pick the right RDBMS.
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PostgreSQL Query Optimization Guide | EXPLAIN· Indexes
Optimize PostgreSQL for production.
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Preact Complete Guide | Fast 3KB React Alternative
Complete Preact guide for building fast web apps. Learn the lightweight React alternative with the same API, hooks, and components.
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Prettier Complete Guide | Opinionated Code Formatter
Complete Prettier guide for code formatting.
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Prisma Complete Guide | Schema· Queries
A complete guide to Prisma ORM for Node.js and TypeScript, covering schema design, migrations, and type-safe queries.
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Python Async Programming: Complete Guide to asyncio and Performance
Master Python asyncio with comprehensive examples covering event loops, coroutines, async context managers, and performance optimization. Learn when to use async/await vs threading for real-world applications.
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Python Performance Optimization Case Study
From ~10 hours to minutes: profiling a Python CSV pipeline with cProfile, NumPy vectorization, Cython, and multiprocessing—real numbers and trade-offs.
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Python list vs tuple vs set | Mutability· Performance
Compare Python list, tuple, and set: ordering, duplicates, big-O operations, memory, and a decision flowchart for real code.
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Python Complete Guide | CPython Internals· GIL
CPython architecture from AST to ceval, the GIL and concurrency trade-offs, refcount and generational GC, importlib and package rules, plus logging.