Showcase

Real applications built with Wyn - proving the "1 language for everything" claim.

wyn-grep - File Search Tool

Fast recursive file search with regex patterns and colored output. ~90 lines of Wyn.

fn grep_file(path: string, pattern: string, show_ln: int) {
    content = File.read(path)
    line_num = 0
    line_start = 0
    for i in 0..content.len() {
        if content[i] == "\n" {
            line = content.substring(line_start, i)
            line_num = line_num + 1
            if Regex.match(line, pattern) {
                print(path + ":" + line_num.to_string() + ":" + line)
            }
            line_start = i + 1
        }
    }
}

$ wyn-grep "spawn" sample-apps -n
sample-apps/web/server/main.wyn:123:  spawn handle_request(...)
sample-apps/sysadmin/portscanner/main.wyn:54:  spawn scan_port(...)

Web Server - Zero Dependencies

A full web server with routing, templates, SQLite, and concurrent request handling. No npm install. No pip install. Just wyn run server.wyn.

fn handle(req: string, db: int) {
    // route and respond (elided)
}

fn main() {
    Web.get("/", 1)
    Web.post("/api/users", 2)
    Web.templates("templates")

    db = Db.open("app.db")
    server = Http.serve(8080)

    while true {
        req = Http.accept(server)
        spawn handle(req, db)  // concurrent
    }
}

Snake - Terminal Game

Playable Snake game in the terminal. Random food placement, collision detection, score tracking. ~110 lines.

Port Scanner - Concurrent I/O

Scans 11 ports concurrently using spawn. Finishes in ~1 second instead of ~11.

for i in 0..11 {
    spawn scan_port(host, ports[i], results, i)
}

System Monitor - sysmon

Full terminal dashboard with CPU, memory, disk, and process monitoring. Real-time updates with keyboard navigation.

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All source code is in the sample-apps directory.

See Also

• Benchmarks - performance numbers
• FAQ - common questions