6 min read Problem Overview Game state synchronization keeps all clients and the authoritative server in agreement about the game world in real […] Read article
7 min read Message Schema Every message is a structured record stored durably before any delivery is attempted: message_id: Snowflake ID — 64-bit […] Read article
7 min read WebRTC Overview WebRTC (Web Real-Time Communication) is a browser and native SDK standard for peer-to-peer audio and video. It handles […] Read article
6 min read Use Cases Vector search powers applications where semantic similarity matters more than keyword overlap: semantic search over documents, recommendation retrieval […] Read article
6 min read Double-Entry Bookkeeping Every financial transaction in the system uses double-entry bookkeeping: each transaction debits one or more accounts and credits […] Read article
6 min read Event Schema The event is the core entity. It supports single and recurring events, multiple attendees, and rich metadata: events […] Read article
6 min read Form Schema A form is defined as a document with ordered questions, each with a type and optional configuration: forms […] Read article
5 min read Data Export Service Low-Level Design A data export service lets users extract large datasets in their preferred format. The core […] Read article
5 min read Data Import Service Low-Level Design A data import service ingests user-supplied files into the system's database. The main challenges are: […] Read article
5 min read Double-Entry Ledger A digital wallet service is built on a double-entry ledger: every financial event creates exactly two entries — […] Read article