Vfly Script -fly Script--- -

Unlike general-purpose languages (Python, JavaScript, Go), Vfly Script is intentionally restricted and optimized for — often used in CI/CD pipelines, serverless functions, API gateways, and IoT edge devices. 2. Core Characteristics | Feature | Description | |-----------------------|-----------------------------------------------------------------------------| | Interpreted | No compilation step; executes directly from source via a small VM. | | Memory-safe | Automatic garbage collection with bounded heap (no unbounded allocation). | | Concurrency Model | Actor-based (like Erlang) or async/await (configurable). | | Type System | Dynamic with optional gradual typing ( .vfly files support type hints). | | Standard Library | Minimal: HTTP client, file I/O, JSON, regex, timers, process spawning. | | Embeddable | Can be embedded into Go, Rust, or C++ applications as a scripting engine. | 3. Language Syntax (Example) // Vfly Script sample: HTTP request + JSON processing import http import json

func fetch_and_sum(url string) int resp = http.get(url, timeout: 2_000) if resp.status != 200 return -1

log.info("User action", user_id: 123, action: "login") For transient failures, Vfly can record a deterministic execution trace and replay it locally — invaluable for serverless debugging. 5. Common Use Cases | Domain | Example Application | |-------------------------|----------------------------------------------------------------| | CI/CD Pipelines | Lightweight replacement for Bash + jq + curl in GitHub Actions| | API Glue Code | Transform, route, or authenticate requests in an API gateway | | Edge Computing | Run sensor data validation on Raspberry Pi or industrial PLCs | | Database Migrations | Versioned, idempotent schema change scripts (built-in retries) | | Webhook Handlers | Process Stripe/GitHub webhooks with minimal cold-start lag | 6. Performance Benchmarks (Approximate) | Operation | Vfly Script | Python 3.11 | Node.js 20 | |-------------------------------|-------------|-------------|------------| | Startup time (empty script) | 1.2 ms | 38 ms | 52 ms | | JSON decode (1 MB) | 3.5 ms | 8.1 ms | 4.2 ms | | HTTP GET + JSON parse | 12 ms | 29 ms | 18 ms | | Memory footprint (idle) | 2.4 MB | 18 MB | 32 MB | Vfly Script -Fly Script---

vfly run script.vfly --allow-net=api.example.com:443 --allow-read=/tmp Logs are automatically emitted as JSON with trace IDs, making them compatible with Loki, DataDog, or Splunk.

1. Introduction Vfly Script (commonly known as Fly Script ) is a lightweight, high-performance scripting language and runtime environment designed primarily for automation, task orchestration, and rapid tooling in cloud-native and edge computing environments. Its name derives from "Velocity Fly," emphasizing speed and minimal overhead. | | Memory-safe | Automatic garbage collection with

return total

// Entry point (optional, runs automatically) task main() result = fetch_and_sum("https://api.example.com/numbers") println("Sum: (result)") | | Standard Library | Minimal: HTTP client,

data = json.decode(resp.body) total = 0 for num in data.numbers total += num

If your current scripts in Bash, Python, or JavaScript feel too heavy, fragile, or slow to start, Vfly Script offers a compelling, purpose-built alternative. Note: As of early 2026, Vfly Script is an emerging technology. Always refer to the official documentation for the latest syntax, APIs, and stability guarantees.