raktalioAutomate your workflow, elevate your business
Domain Modeling
Do not model the current state of the world, model how you get there!
100% accurate audit
Tame complexity
with spec-driven development
Bring structure to AI coding. From concept to prototype in just days — when autonomous agents can act on every rule you codify, the return on every spec and test multiplies like never before.
f{model} in Kotlin
Functional and reactive domain modeling for Kotlin
f(model) in TypeScript
Functional and algebraic domain modeling for TypeScript
f(&model) in Rust
Functional and safe domain modeling for Rust
Accelerate Development
Open-source libraries for domain modeling
Inspired by DDD, Event Sourcing, and Functional programming — implemented in idiomatic Kotlin, TypeScript and Rust.
Less error-prone, easier to understand, easier to test — type-safe and thread-safe by design.
Runs everywhere
No disruption! Plug into the stack you already run.
Automate
with Durable Workflows
Orchestrate the slices as a single durable, multi-step execution with automatic retries, persistent state, and the ability to pause and wait for external events ( human in the loop ).
Your sagas and process managers become durable workflows — the same domain logic, now with production-grade execution guarantees.
Long-running processes like order fulfillment, payment flows, and approval chains survive crashes and restarts without losing progress.
Data is not important in itself
It's the analysis of data and how it is produced that is the driver of all innovations and solutions.
No new infrastructure required — use the database you already have.
Managed or on-prem.
PostgreSQL
General purpose database
Event sourcing and event streaming on the world's most advanced open-source relational database. A proven foundation you already know.
KV Foundation
The Infinite Schema
Key-Value stores like FoundationDB, DenoKV, and TiKV. Dynamic consistency boundaries, high throughput, and flexible data modeling without rigid schemas.
What our clients say
"What we appreciated most was Fraktalio's collaborative approach. Their deep expertise in event-driven systems and DDD helped us avoid common pitfalls and accelerate our learning curve during a significant architectural evolution."
Predrag Spasojević
CEO, Hooloovoo
"I just wanted to take a moment to congratulate you on the incredible work you've done with the f(model) library. I've been exploring it for some time, I believe it holds immense promise. Keep up the fantastic work! 👏👏👏"
Ruggero Rebellato
Community Member
"Thank you very much for presenting a good methodology. I'm developing a service utilizing f(model). I built the event store with fstore-sql and found that all events are handled well."
Nam, Yonghwan
Community Member
Let's Get In Touch!
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