Raw Soroban events are powerful but painful. XDR decoding, RPC retention limits, and scattered tooling meant every team rewrote the same glue. With Pulsar we extracted three reusable pieces: a Rust crate for typed decoding, a Go indexer that persists events beyond the seven-day window, and an explorer where pasting a contract ID surfaces its full history. The takeaway: shared primitives compound. One decoder written well saves dozens of projects from repeating it badly.