Blog
Latest news, technical deep dives, and tutorials from the TopGun team.
TopGun Goes Serverless
WebSockets don't survive in serverless. TopGun v0.11.0 introduces a stateless HTTP sync protocol that brings CRDT synchronization to Vercel Edge, AWS Lambda, and Cloudflare Workers.
Merkle Trees: How TopGun Syncs Only What Changed
Syncing a 100MB dataset shouldn't transfer 100MB. Here's how Merkle Trees let TopGun identify differences with a handful of hashes and transfer only the records that actually changed.
From Local to Global: Real-Time Search Across Clusters
Live subscriptions used to work only on the local node. TopGun v0.10.0 introduces distributed subscriptions that push updates from any cluster node to your client in real-time.
Full-Text Search Goes Offline-First
Most search engines require a server. TopGun v0.8.0 brings BM25 relevance ranking to local-first apps with live subscriptions that update in real-time.
Hybrid Logical Clocks: The Heart of Distributed Sync
Physical clocks lie. Network time drifts. Yet distributed systems need ordering. Here's how Hybrid Logical Clocks solve causality tracking in TopGun.
How We Built Conflict Resolution Beyond LWW
Last-Write-Wins works for most cases, but fails spectacularly for booking systems and inventory. Here's how we designed Custom Conflict Resolvers for TopGun.
Why We Abandoned Realtime Postgres for an In-Memory Grid
We tried using PostgreSQL logical replication for TopGun v2. Here is why it failed our realtime requirements and why we pivoted to an in-memory architecture.
Introducing TopGun v2 Alpha
From a Gun.js port to a high-performance in-memory data grid. The story of why we rewrote TopGun from scratch.
Understanding CRDTs in TopGun
Conflict-free Replicated Data Types are the magic behind offline-first sync. Here's how TopGun uses them to merge changes without conflicts.