what's Quasar?

Quasar is a Solana program development framework optimized for writing extremely efficient programs on the Solana Virtual Machine (SVM). It achieves this through zero-copy account handling, where accounts are directly pointer-cast from the SVM input buffer without deserialization, heap allocation, or data copies. Programs compile as #![no_std] by default, delivering compute unit (CU) efficiency close to hand-written assembly. Developers use intuitive macros like #[program], #[account], and #[derive(Accounts)], providing Anchor-like ergonomics with superior performance. Additional tools include a CU Profiler with interactive flamegraphs for detailed optimization, QuasarSVM for local transaction simulation in Rust and TypeScript without needing a validator or RPC, and auto-generated typed clients for web3.js, Kit, and Rust. Developed by Blueshift, it supports easy migration from Anchor and targets advanced Solana builders focused on minimal overhead and maximal speed.

Quasar adopts a unified IDL standard with Anchor, Codama, Blueshift to eliminate IDL sprawl.