ESSAYFebruary 4, 2026·1 min read·[rust][systems]
Writing a terminal emulator in Rust from scratch
Rust’s ownership model maps well to PTY masters and parser state machines. This post sketches the architecture for a GPU-rendered terminal emulator.
PTY setup
Allocate with libc or nix, then spawn the shell on the slave side.
Parser pipeline
Bytes flow: stdin → ANSI parser → grid → render. Keep parsing incremental for streaming.
fn main() {
println!("hello terminal");
}