Mobile App

**What You'll Build** A fully working Employee Management REST API with: * **CRUD endpoints** (POST, GET, PATCH, DELETE /employees) * **Pagination**, sorting, and filtering on the list endpoint * **Strong runtime validation** via *zod* * A typed, schema-first database layer via *Drizzle ORM* * **Environment-aware configuration** (development / production) * A multi-database PostgreSQL setup orchestrated via *Docker Compose* * A seed script to populate sample data * A **REST Client** app.http file to exercise every endpoint **What You'll Learn** By the end of this workshop you'll be able to: * Scaffold a NestJS application from scratch with `@nestjs/cli`. * Containerize a Node.js API using a multi-stage Dockerfile and *Docker Compose*. * Run PostgreSQL in Docker with auto-created databases via init scripts. * Load environment variables dynamically from `.env.${NODE_ENV}` files. * Wire up *Drizzle ORM* as a global NestJS module with proper lifecycle hooks. * Define a database schema in TypeScript and generate SQL migrations. * Validate request bodies and query params with *zod* using custom decorators (no class-validator). * Implement pagination, sorting, and filtering the right way. * Translate database errors (e.g. unique_violation) into proper HTTP responses (**409 Conflict**). * Write a seed script that works across environments. * Test the API end-to-end using the **VS Code REST Client**. **Prerequisites** Please install before the event: * Node.js : ≥ 22 [Download here](https://nodejs.org) * pnpm: ≥ 9 * `corepack enable && corepack prepare pnpm@latest --activate` * Docker Engine: ≥ 20.10 (With the Compose v2 plugin, `docker compose`, not `docker-compose`) * Git: latest [Download here](https://git-scm.com) * VS Code: latest [Download here](https://code.visualstudio.com) * VS Code extensions: * REST Client, ESLint, Prettier A working internet connection is required to download Docker images and npm packages.

**Come Sing With the Fairfax Jubil-Aires!** Do you enjoy singing along to your favorite songs? Curious what it’s like to sing rich four-part harmony with a friendly group? Come visit the weekly rehearsal of the Fairfax Jubil-Aires and see what barbershop singing is all about! The Fairfax Jubil-Aires are a welcoming mixed a cappella chorus that performs classic and contemporary barbershop harmony. Our members come from all kinds of musical backgrounds—some have years of experience, while others simply love to sing. What we all share is a passion for music, laughter, and community. Visitors are always welcome at our weekly rehearsals. You can sit back and observe, or jump right in and sing with us—no pressure either way. You don’t need to read music, and there’s no audition required just to visit. We rehearse **Wednesday evenings at 7:00 PM in Fairfax**, and we’d love to have you stop by and check it out.

We will be meeting at Starbucks to learn together. Come with an online class you're already going through or an interest and we will try to connect you with a course where you can learn it. Already have a skill you want to contribute to a Kaggle Datascience competition? We will work on these too! Laptop required :)

**Come Sing With the Fairfax Jubil-Aires!** Do you enjoy singing along to your favorite songs? Curious what it’s like to sing rich four-part harmony with a friendly group? Come visit the weekly rehearsal of the Fairfax Jubil-Aires and see what barbershop singing is all about! The Fairfax Jubil-Aires are a welcoming mixed a cappella chorus that performs classic and contemporary barbershop harmony. Our members come from all kinds of musical backgrounds—some have years of experience, while others simply love to sing. What we all share is a passion for music, laughter, and community. Visitors are always welcome at our weekly rehearsals. You can sit back and observe, or jump right in and sing with us—no pressure either way. You don’t need to read music, and there’s no audition required just to visit. We rehearse **Wednesday evenings at 7:00 PM in Fairfax**, and we’d love to have you stop by and check it out.

* Experience a practice that encourages intentional & gentle movement, as well as stillness & observation * Experience mobility & flexibility for the whole body * Options encouraged, practice tailored for you * In person, online or recorded * Typically also offered weekly on Mondays & Tuesdays * Reserve your space: [https://square.link/u/jF5cSTGh](https://square.link/u/jF5cSTGh)

**ProductTank NoVA is back!** After a brief hiatus, we are relaunching the chapter with a format that cuts out the fluff and gets straight to the reality of building. Every product feed is flooded with AI hype right now, but what does it actually look like on the ground? Instead of a polished keynote, we are hosting **0 to 1 with AI: Real Product Talks**—a "Show & Tell" featuring 3–4 lightning talks focused on the intersection of AI and product. The framing for the talks is simple: *"Here is what I'm building, and here is what I'm stuck on."* We want to look at the messy, 0-to-1 reality of integrating AI into your workflows and products. *(Want to share what you are working on? Reach out! The bar is low-pressure, just 10–12 minutes to talk about a real AI problem you are trying to solve.)* **Agenda:** * **5:30 PM - 6:00 PM:** Doors open, networking, & name tags * **6:00 PM - 6:10 PM:** Welcome + Chapter Relaunch Intro * **6:10 PM - 7:30 PM:** Lightning Talks (Three 12-min talks + 5 mins Q&A each, with a 5-min stretch break) * **7:30 PM - 8:00 PM:** Open networking * **8:00 PM:** Soft close **Location & Logistics:** Herndon Fortnightly Library (Extended Hours Meeting Room) 768 Center St, Herndon, VA 20170 * **Parking:** We'll meet at the library, located just behind the Herndon Municipal Center. There is plenty of free public parking available around the municipal center. * **Metro & Bus:** Take the Silver Line to Herndon Metro Station, then connect via Fairfax Connector Route 921 or 950 to Historic Downtown Herndon. * **Driving (via VA-267/Dulles Toll Rd):** Take Exit 10 North (Centreville Rd, which becomes Elden St). Turn left onto Station St or Lynn St. * **Driving (via VA-286/Fairfax Co Pkwy):** Take the Elden St West exit. Turn right onto Lynn St. Looking forward to seeing everyone again and getting back to building!

Start at the old train depot. After the run, we'll meet at Mile 20 for a drink! Run starts at 6:45 pm we will head toward Sterling tonight. Run at your own pace out and back. 2 mile runners turn around at Crestview Drive. 3 mile runners turn around at Tamarack Court. 3.5 & 4 - No cross streets in this stretch. You're on your own. :-) 5 mile runners - turn around at Sterling Blvd.