We are Eff3ct – a community-driven organization where functional programming meets real-world impact. Our mission? To craft elegant, maintainable, and downright awesome software solutions using the principles of functional programming.

"A function that produces no side effects is called pure. We’re not claiming we’re pure, but our code sure is!"

At Eff3ct, we believe in transforming complexity into simplicity through the power of functional programming. Whether it’s building scalable systems, taming unruly data pipelines, or creating libraries that make developers go “Wow, this is neat!” – we’re all about making things better, one pure function at a time.

Eff3ct is proudly founded and led by Rafael Fernandez, a passionate advocate for functional programming and formal methods. Here, we aim to not only deliver practical software solutions but also explore rigorous, mathematically-grounded approaches to ensure correctness and reliability in everything we build.

Because:

• Functions are our favorite type of relationship: clear, predictable, and committed.
• Recursion isn’t just a concept, it’s a lifestyle.
• Side effects belong in movies, not in our code.

We’re not just about writing code – we’re about writing code that lasts, code that sings, code that scales. (And yes, we’ll sneak in a monad or two. Don’t be scared, they’re friendly once you get to know them.)

• Open-source libraries: Tools, utilities, and frameworks designed to make functional programming more accessible and effective.
• Learning resources: Guides, tutorials, and examples to help you embrace functional programming, whether you're a curious beginner or a seasoned pro.
• Cutting-edge projects: We’re always exploring new domains and applying functional principles to solve unique problems.
• Formal methods focus: Deep dives into techniques that ensure software correctness through mathematical rigor.

We’re not just a GitHub organization; we’re a community of like-minded developers who believe that the world deserves better software. And better software starts with better code. (That’s us!)

Here’s how you can get involved:

• Contribute: Found a bug? Got an idea for a feature? Or just want to refactor something for fun? PRs are always welcome.
• Collaborate: Have a project idea? Let’s brainstorm, build, and deploy it together.
• Spread the word: Know someone who loves clean code and functional programming? Tell them about Eff3ct!

We’re serious about code quality, but we’re not afraid to have fun. Here at Eff3ct, you’ll find:

• A commitment to rigorous testing (because bugs ruin weekends).
• An obsession with immutability (because change is hard).
• A love for functional patterns (because higher-order functions are just better).
• A dedication to formal methods (because provable correctness is the ultimate superpower).

And above all, we’re here to build things that work – beautifully, reliably, and scalably.

Want to explore what we’re up to? Check out our projects:

• Criteria4s – An awesome simple DSL to define criteria and predicate expressions for any data stores.
• Teckel – Super framework for building Apache Spark ETL processes using YAML configuration files.

Let’s stay in touch:

• Follow me on LinkedIn: Rafael Fernandez
• Join our discussions: GitHub Discussions
• Shoot us an email: [email protected]

Let’s put the function in functional programming. Together, we’ll make software that doesn’t just work – it Eff3cts change.