Data and storage

How to select and connect databases and storage, design schemas, make backups, and keep the data in order as the project grows.

DA

Data and storage

6/7/2026 / 17 min

RAG: How to Connect Your Data to a Language Model and Get a Smart Assistant

RAG (Retrieval-Augmented Generation) is an architecture in which a model answers questions from your data rather than memory. We understand how it works, how to collect from scratch in Python, what vector bases to use and where to really apply in vibcoding.

RAGEternal baseEmbeddingi

DA

Data and storage

6/6/2026 / 11 min

S3 Storage: What It Is and Why It Works

S3 storage is a cloud-based object storage for files, media, backups, and application data. We understand how S3 works, how it differs from a regular drive, what providers are and how to start using it.

S3Object storageCloud

DA

Data and storage

3/5/2026 / 7 min

PostgreSQL for beginner: tables, indexes, migrations

Discuss the basics of PostgreSQL for beginners: how tables work, why indices are needed, and how to manage database schema changes through migration. With SQL examples and practical recommendations for real projects.

PostgreSQLDatabaseMigration

DA

Data and storage

3/4/2026 / 14 min

Tracking AI queries: how to quickly find a failure

Step-by-step guide for beginners: how to log and trace AI queries to quickly find errors in the sale and not lose the context of calls.

ai-assisted developmentobservationlogictracing

DA

Data and storage

2/19/2026 / 4 min

Redis to speed up projects: cache, queues and rate limiting

Разбираем Redis на практических кейсах ускорения: кеширование, ограничение нагрузки, работа с TTL и типовые ошибки внедрения, из-за которых производительность не растёт.

RedisKeshSpeed

DA

Data and storage

2/17/2026 / 6 min

Supabase: A complete guide for beginners, or how to deal with databases

Supabase beginner guide: how database, auth, storage, realtime, RLS, migrations, and AI-assisted setup work in practical projects.

SupabaseDatabaseStorage