Open Source
Meet other local people who are interested in Open Source Intelligence (OS-INT), the common meeting ground for government, business, academic, media, and other organizational practitioners of the craft of intelligence.
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Frequently Asked Questions
Yes! Check out open source events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the open source events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find open source events near your location here. Connect with your local community and discover events within your area.
Open Source Events This Week
Discover what is happening in the next few days
API Project Set-Up [Node]
**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.
Open Source Events Near You
Connect with your local Open Source community
MoCo Code & Coffee May (@ EOB Cafeteria)
MoCo Code and Coffee is an inclusive, informal, co-working session. We're community-led and community-run by devs, for devs. People of all skill levels are invited. Especially new devs!
Bring a laptop, ideas, and we'll provide the coffee and snacks.
**Here's how it works**
At 2:30pm, everyone introduces themselves and briefly mention what brought them to Code & Coffee today (project, homework, networking, etc.)
Round 1:
1. Your name
2. What you're working on
3. What you can help others with
Round 2:
* Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool.
Round 3:
* Community events you wanna plug. If none, that's cool too.
**After the introduction circle, everything is self-organized!**
1. For the rest of the day, folks work on their projects, providing one another with help, and/or socialize. It's fully up to you.
**Location**
We will be at the cafeteria of the County Executive Office Building in Rockville.
101 Monroe Street, Rockville, MD 20850
The event will be held in a spacious cafeteria with plenty of tables and chairs. Light refreshments (coffee and tea) and snacks will be provided.
**Parking**
* Visitor Parking is available at the First Level of the Council Office Building Parking Garage. Entrance only from East Jefferson and Monroe Street intersection.
More information is here: https://www.montgomerycountymd.gov/mcg/direction-to-eob.html
* PLEASE NOTE: The garage referenced above is ACROSS THE STREET from the Executive Office Building. This is NOT the garage at the base of the Executive Office Building structure - that one is for employee and permit parking only.
* If that garage is not available, there may be street parking available. The Rockville Town Square garages have up to 90 minutes of free parking are not too far away. Parking at the Rockville Metro station would be free on weekends.
**Public transit**
* Located near near the **Rockville** metro station (Red Line).
Fountain Pens and Journals at a Bakery ☕️🥐
It’s hard to believe our group is 1 year old now!
Let’s have another great meetup to enjoy the hobby with each other and have a IFP&P birthday celebration!
Note: location may change.
Loudoun Dev Group 005
Join our new group’s third meeting. Meet fellow tech enthusiasts west of the beltway.
Because our group is new, we have a poll for the direction we want to take this new group.
[https://submatrix.net/article/Meetups/e9ym4fr8Ca](https://submatrix.net/article/Meetups/e9ym4fr8Ca)
For this event, we will be running a working meetup.
Our meetings are a great place to work on and show off what you do. We are always welcoming.
Our format is great for people who have started on but not finished one or several side projects.
We will start off with basic introductions and what we are working on and what our goals are. We’ll break the rest of the meeting into two working sessions. In between, we’ll do a quick check-in to see how folks are going.
Open Mic StandUp Comedy at Library
Open Mic StandUp Comedy.
Sign up list goes out at 10:30 a.m. (**In the morning**. Do not show up at 10:30 at night)
Each performer will get 5 minutes to perform.
If you don't want to perform this time around, feel free to come enjoy the mic and relax.
If you need to cancel, please change your status to "will not attend."
Street parking is abundant. Train one block away.
NOVA Code & Coffee [164] - At FCED Venue
NOVA Code and Coffee is an inclusive, informal, co-working session. People of all skill levels are invited. The concept is simple, bring a laptop and ideas, we'll provide the coffee and donuts! Here's how it works:
1. At 10:15 everyone introduces themselves and briefly describes what brought them to Code & Coffee today (project, homework, networking, etc)
2. For the rest of the day, folks work in the communal space on their projects providing one another help and conversation as needed. Oh and they usually drink coffee and tea too!
That's it! Hope to see you there!
**Location**
Our hosts are the Fairfax City Economic Development
Building: [10300 Eaton Pl, Fairfax, VA 22030](https://www.bing.com/ck/a?!&&p=d7298231ca2df594df822003f9a93517c788fceefe1fcbb79c8976696e341bc6JmltdHM9MTc1MzIyODgwMA&ptn=3&ver=2&hsh=4&fclid=180d0745-3b7f-69a1-23a2-11433a7868e5&u=a1L21hcHM_Jm1lcGk9MTA5fn5Ub3BPZlBhZ2V-QWRkcmVzc19MaW5rJnR5PTE4JnE9RmFpcmZheCUyMENpdHklMjBFY29ub21pYyUyMERldmVsb3BtZW50JnNzPXlwaWQuWU44NzN4ODI4MTk2Mjg0NTk5MDM4MTU0MiZwcG9pcz0zOC44NjE0NDYzODA2MTUyMzRfLTc3LjMwMjE3NzQyOTE5OTIyX0ZhaXJmYXglMjBDaXR5JTIwRWNvbm9taWMlMjBEZXZlbG9wbWVudF9ZTjg3M3g4MjgxOTYyODQ1OTkwMzgxNTQyfiZjcD0zOC44NjE0NDZ-LTc3LjMwMjE3NyZ2PTImc1Y9MSZGT1JNPU1QU1JQTA&ntb=1)
Conference Room A- Large, Floor 1
This is a new venue for us, so give us some time to get more details about it.
Driving is the best option. There is plenty of free on-site parking. Otherwise, we are a 22 minute bus from the Vienna Metro Station. Bicycling from Vienna is possible but difficult, though once you are here, there's a bike rack in the garage behind the building, and there's also a Capital Bikeshare dock 15 min walk away.
**Sponsored by:**
Thank you [Fairfax City Economic Development](https://gofairfaxcity.com/) and [Mason Enterprise Center](https://enterprise.gmu.edu/) for making this event possible!
**Thank you so much to our wonderful sponsors!**
Organized by [DMV Petri Dish](https://www.dmvpetridish.com/)
**[Code of Conduct](https://github.com/NoVACodeCoffee/admin/blob/master/code-of-conduct.md):**
We value the participation of each member of the community and want all attendees to have an enjoyable and fulfilling experience. To make clear what is expected, all delegates/attendees, organizers, and volunteers at any Nova Code & Coffee events are required to conform to our [Code of Conduct](https://github.com/NoVACodeCoffee/admin/blob/master/code-of-conduct.md).
Hopeful Cafe Conversations @Panera Kentlands
**Hopeful Cafe Conversations @Panera Kentlands**
* **You are cordially invited to join in the conversation to catch the positive vibe... a cup of coffee, or another of your favorite refreshment.**
**At NEW HOPE CAFE CONVERSATIONS 8:30am-9:30am (3rd Saturdays, Monthly)**
**Address: Panera, 285 Kentlands Blvd., Gaithersburg, MD 20878**
**Zoom Link: https://us06web.zoom.us/j/83326239362**
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**New Hope Workshop**: What is Negativity Bias? How do we get ahead of it to reach more positive outcomes in work, life, and relationships? Discover the difference between goals and outcomes.
1\. How do we reaffirm ones role\, despite negativity bias from others?
2\. The New Hope Community Affirmative Statements of Foundational Principles \- What are some helpful affirmations?
3\. Your Perspectives in Conversation
**"Star Points Meal Deal"**
If you have New Hope "Star Points 💫" you can get a discount on a meal. Also you can earn Star Points, if this is your first time attending Cafe Conversations, in-person. Ask Gene, newhope321community@yahoo.com, 240-848-0808.










![API Project Set-Up [Node]](https://secure.meetupstatic.com/photos/event/c/d/4/7/highres_534112551.webp?w=640)





![NOVA Code & Coffee [164] - At FCED Venue](https://secure.meetupstatic.com/photos/event/a/9/8/4/highres_509983396.webp?w=640)
